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Prototype Machining Companies

Last updated: January 2026

This directory lists 104 prototype machining companies across the United States, from specialized rapid prototyping bureaus with advanced 5-axis capabilities to full-service contract manufacturers with dedicated New Product Introduction (NPI) divisions.

Buyers in this space are typically solving problems related to rapid design validation, functional testing of novel geometries, or producing low-volume, high-precision components for critical applications. They require partners capable of handling everything from initial concept parts with broad tolerances to near-production prototypes demanding micron-level precision and specific surface roughness (Ra) values.

The types of suppliers vary significantly, ranging from small, agile job shops specializing in quick-turn, single-piece runs to larger facilities offering integrated services like material sourcing, heat treating, and advanced metrology. Some focus exclusively on specific materials, such as titanium or high-performance plastics, while others boast diverse capabilities across a spectrum of alloys and polymers, often leveraging state-of-the-art CAM software.

For a successful engagement, buyers should come prepared with fully defined CAD models, clear GD&T callouts, specific material certifications (e.g., Mill Test Reports or Certificates of Conformance), and explicit requirements for any post-machining operations like anodizing, plating, or heat treatment. Suppliers expect this level of detail to provide accurate quotes and avoid scope creep.

A notable trend in prototype machining is the increasing integration of hybrid manufacturing techniques, where traditional subtractive machining is combined with additive manufacturing processes. This allows for the creation of geometries previously impossible to machine, or for consolidating multi-part assemblies into a single, complex prototype, often reducing lead times and improving part performance.

104 companies·72 emails·94 phones

Company Directory

104 companies nationwide

A3D Manufacturing provides comprehensive solutions for rapid prototyping and production, including CNC machining, 3D printing (MJF, FDM, SLA), injection molding, and cast urethane. They specialize in high-performance, quality parts for small batch to large production runs. The company holds ISO9001, AS9100, and ITAR certifications.

Spring Lake, MI

Active Manufacturing Corp., based in Spring Lake, MI, specializes in custom metal prototyping and short runs. They offer precision machining for parts up to 8’x4’ and down to 0.002” thick. Services include assembly, reverse engineering, over molding, and various finishing processes for industries like automotive and medical.

Statesville, NC

ADDMAN provides integrated advanced manufacturing services, including precision CNC machining, metal and polymer additive manufacturing, and injection molding. They support prototype through production volumes, accelerating development for industries like defense, aerospace, medical, and energy.

Lancaster, CA

Based in Lancaster, CA, Aerotech Precision Machining, INC. is an AS9100D certified provider specializing in precision machining and prototyping services. They manufacture metal and composite components for aerospace, medical, military, commercial, and electronic industries, emphasizing quality and timely delivery.

Fremont, CA

Based in Fremont, CA, AJ Solutions Machining offers ISO-certified prototype and production CNC milling and turning services. They provide large part machining and CAD/CAM engineering for industries including aerospace, pharmaceutical, automation, and defense. The company processes diverse metals and plastics, focusing on close tolerance, high precision, and rapid turnaround.

Middletown, DE

Based in Middletown, DE, Allied Precision, Inc. provides comprehensive manufacturing solutions and precision machined components. This full-service machine shop specializes in CNC turning, milling, and custom welding fabrication. They produce complex, multi-part, custom-engineered components, offering contract manufacturing and metal finishing services with typical 4-to-6-week turnarounds.

San Carlos, CA

Based in San Carlos, CA, American Prototype & Production, Inc. offers precision machining services for prototyping and production. With extensive experience in scientific instrumentation, R&D projects, semiconductor capital equipment, and medical devices, they serve diverse industries. The company focuses on delivering quality products and leveraging the latest industrial technology.

Farmersville, TX

Based in Farmersville, TX, Bates Machine & Mfg., Inc. is a family-owned, full-service CNC machine shop operating since 1975. They specialize in CNC machining, laser engraving, and precision assembly production. The company fabricates parts from various materials, including plastics, aluminum, and steel, providing manufacturing services for sectors like oil and gas and medical devices.

Bull's-Eye Precision is a manufacturing company specializing in high-quality tungsten carbide and steel tooling. They provide comprehensive steel tooling capabilities, encompassing design, prototyping, manufacturing, and production. The company also offers precision grinding services for carbide tooling and complete mold-making services for customized solutions.

Chino, CA

Based in Chino, CA, California Machine Specialties, Inc. offers precision machining services, including 4-axis CNC milling and turning. They specialize in manufacturing custom heat sinks for military applications and provide custom mechanical assemblies. With over 45 years of experience, they serve the Aerospace & Defense sector.

Placentia, CA

Based in Placentia, CA, Coast Aerospace Manufacturing, Inc. is a fabrication house specializing in design and manufacturing services. The company provides manufacturing solutions and delivers high-quality products on schedule, emphasizing quality assurance and customer satisfaction to exceed expectations.

Troy, TX

Based in Troy, TX, Central Texas Machining, LP is a third-generation family-owned machine shop. They offer CNC turning for prototype to large volume production, specializing in oil/gas and hydraulic cylinder components. The company provides turn-key solutions, adhering to high quality standards and precise tolerances.

Coral Springs, FL

Based in Coral Springs, FL, Decimal Engineering, Inc. provides precision sheet metal fabrication, CNC machining, stamping, wire EDM, and laser cutting services. With over 50 years of experience, they specialize in custom manufacturing for aerospace, defense, medical, and automotive industries, ensuring quality and timely delivery of metal products.

Rohnert Park, CA

Based in Rohnert Park, CA, Designit Prototype offers engineering excellence and effective prototyping services. Their skilled technicians transform ideas into tangible prototypes using cutting-edge techniques. They also provide custom manufacturing solutions from their modern facilities, ensuring efficient production and timely delivery.

Based in New Freedom, PA, Eden Manufacturing specializes in producing high-quality plastic and metal parts for complex medical and surgical devices. The company offers vertically integrated capabilities, including precision tooling and production manufacturing, supporting comprehensive solutions for medical device components from engineering through quality management.

Haslet, TX

Based in Haslet, TX, ELEAT Prototypes & Tooling LLC specializes in precision CNC machining. They offer custom parts, prototypes, production runs, electro-mechanical fixtures, and reverse engineering. With 35+ years of experience, the company serves automotive, aerospace, oil & gas, and medical sectors, prioritizing quality and timely delivery.

Houston, TX

Based in Houston, TX, ER Machining provides high-precision CNC machining services, including turning, milling, and prototyping. They offer fast-turnaround, emergency, and custom machining for industrial clients. Capabilities include metal fabrication, reverse engineering, and design, serving sectors like aerospace and oil & gas.

Fountain Valley, CA

GB CNC Services LLC, based in Fountain Valley, CA, provides precision machined parts using CNC turn-mill centers. They specialize in diverse materials, including high-temperature super alloys like Titanium, Inconel, stainless steel, aluminum, brass, and plastics. Services range from engineering to assembly, ensuring critical tolerances and on-time delivery.

Independence, IA

Based in Independence, IA, Geater Machining & Manufacturing Co. specializes in precision machining, fabrication, and prototyping. They utilize advanced CNC machinery and an integrated approach for projects from initial design to full-scale production. AS9100, ISO 13485, and NADCAP certified, Geater serves aerospace, electronics, and high tech.

Los Angeles, CA

HexCorp offers comprehensive product development, prototyping, and rapid manufacturing services. They assist clients in bringing new products to market, from initial product design and consultation to creating rapid prototypes and managing manufacturing processes.

Long Beach, CA

Based in Long Beach, CA, Hi Standard Manufacturing & Fabrication, founded in 1967, specializes in prototype machining, precision sheet metal, laser cutting, and certified welding. They provide general fabrication and production runs for aerospace, defense, medical, and commercial industries.

Hortonville, WI

Based in Hortonville, WI, JBC Machine, Inc. is a family-owned machine shop providing machining solutions since 1985. They offer services including 3D milling, turning, boring, and threading. Specializing in prototype machining to aircraft components, JBC Machine works with diverse materials like steel, aluminum, plastics, and composites.

Conway, AR

Based in Conway, AR, Jet Machine is a precision CNC machining shop specializing in low-volume and short-run prototype parts. They offer Swiss turning, CNC milling, and fabrication of complex, tight-tolerance components with fast turnarounds. The company serves 14+ industries from its 20,000+ sq ft facility.

Mansfield, TX

Based in Mansfield, TX, Jireh CNC Machining provides high-quality precision machining services. Specializing in parts from prototype to full production and contract manufacturing, they serve a wide range of industries. Capabilities include CNC milling, CNC lathe turning, 3D profiling, and design for manufacturability, known for rapid turnaround times.

Alameda, CA

KAD Models & Prototypes Inc specializes in prototype to production precision machining and quick-turn silicone molding services. Operating from facilities in California and Vermont, the company helps clients bring product designs to life. They also offer a Pay It Forward Prototype Program for social good initiatives.

Glendale, CA

LA CNC Inc. specializes in precision CNC machining for various metals and shapes, offering both fast prototyping and high-volume production. Services encompass turning, milling, assembly, sub-assembly, and handling short runs or rush orders. The company brings over 30 years of experience.

Houston, TX

Based in Houston, TX, Liberty Precision Company, LLC provides precision machining services from its 22,000 sq ft facility. They utilize 4-, 5-, and 6-axis CNC machines for complex parts. ISO 9001:2015 and AS9100D certified, the company serves aerospace, defense, nuclear, and oil & gas industries.

San Francisco, CA

Based in San Francisco, CA, Mantle 3D specializes in advanced manufacturing for precision tooling. The company combines trusted CNC machining with 3D printing of industry-standard tool steels to produce high-accuracy prototype and production tooling, including solutions for conformal cooling applications.

West Bend, WI

Based in West Bend, Wisconsin, MD Design & Automation is a precision machining and job shop specializing in prototypes, special tooling, and automation. They offer comprehensive services including CNC and Wire EDM machining, CMM inspections, and reverse engineering for various industries.

College Station, TX

Mesquite Manufacturing, based in College Station, TX, provides precision CNC machining solutions. Their expert team offers customized approaches, ensuring stringent quality standards are met. Dedicated to customer satisfaction, they deliver reliable, top-notch services and excellent support tailored to unique client needs.

Based in Fitchburg, MA, Micron Solutions specializes in advanced precision machining and finishing for complex components, achieving tight tolerances for medical implants and defense applications. Operating from a 120,000 sq ft facility, they also provide world-class injection molding and assembly, offering integrated manufacturing solutions.

Houston, TX

Based in Houston, TX, M-Tech Precision Machining specializes in prototype productions and precision machining of component parts for various industries. They provide general machining services, including manual lathe, mill, and CNC capabilities, working with diverse materials like carbon, stainless, exotic steels, nickel, plastics, and acrylic.

Napoleon, OH

Based in Napoleon, OH, Napoleon Machine specializes in extensive CNC machining services, including prototype, short-run, and large part production. They offer comprehensive industrial fabrication, precision welding for various materials like aerospace aluminum and steel, and finishing solutions. The company utilizes advanced CAD/CAM technology for its manufacturing processes.

Rowlett, TX

Based in Rowlett, TX, North Dallas CNC Machine Shop is a full-service provider handling diverse machining needs, from prototypes to large production runs. The company leverages over 100 years of combined experience and modern CNC lathes and mills for various projects.

Irvine, CA

Based in Irvine, CA, Onset Engineering Inc. specializes in precision CNC machining services for rapid prototyping and production. They offer advanced 3, 4, and 5-axis milling, turning, and EDM capabilities for various materials. The company serves industrial clients in aerospace, medical, automotive, and robotics sectors.

San Jose, CA

Optima Precision, a San Jose, CA-based CNC machine shop, specializes in precision machining services. They offer CNC milling, turning, and rapid prototyping for complex components, handling short run to high-volume production. The company focuses on quality, reliability, tight tolerances, and on-time delivery for clients.

Oak Creek, WI

Based in Oak Creek, WI, Owens Industries provides precision machining services across the United States. Their comprehensive CNC capabilities include micromachining, 5-axis milling, Sinker EDM, Wire EDM, Plunge/Ram EDM, and CNC lathe/turning. The company specializes in high-accuracy, complex machining, suitable for prototype development.

Carlsbad, CA

Based in Carlsbad, CA, Pacific CNC Machine Co. provides precision CNC machining services, including rapid prototyping, short-run production, and complex component manufacturing. They specialize in multi-axis milling, turning, and wire EDM, serving aerospace, medical, defense, and semiconductor industries.

Cedarburg, WI

Based in Cedarburg, WI, Parts Badger provides precision CNC machining services for custom parts. Specializing in rapid prototyping, they offer instant and rapid quoting for various manufacturing processes including Swiss CNC machining, multi-axis machining, sheet metal fabrication, and injection molding, supported by expert engineering guidance.

Pearland, TX

Based in Pearland, TX, Pearland Precision provides CNC machining services, focusing on dependability, quality, and competitive pricing. They strengthen customer supply chains by delivering high-quality parts on time, using lean manufacturing techniques. The company ensures customer satisfaction, leveraging a founder's 30+ years of machining industry experience.

Oceanside, CA

Based in Oceanside, CA, Performance CNC, Inc. offers high-volume and prototype precision machining services. They provide start-to-finish creation of components and assemblies, supported by decades of expertise. The company aids in design for manufacturing (DFM) and consulting, serving industries like Medical, DoD, Aerospace, and Automotive.

Roseville, CA

Based in Roseville, CA, Precision Manufacturing Company specializes in 5-axis CNC machining services. The company maintains ISO9001 and ISO13485 certifications, alongside CAGE 9R7F1 and NIST SP 800-171 compliance. Leveraging over four decades of industry experience, they deliver precision manufactured components.

Emeryville, CA

Based in Emeryville, CA, POP Manufacturing specializes in rapid prototyping and bridge manufacturing services. They provide industrial quality in-house FDM, SLA, Polyjet, full-color 3D printing, and CNC machining. The company is known for its rapid turnaround times, typically 2-3 days, and competitive pricing.

San Rafael, CA

Based in San Rafael, CA, Precision Proto Works LLC specializes in prototype machining and mold making services. The company provides precision manufacturing solutions for clients needing high-quality prototypes and custom-machined components. They focus on delivering accurate and timely results for diverse project specifications.

Tucson, AZ

Based in Tucson, AZ, P4Swiss / Lindel CNC Machining provides small, complex, short run production services. Specializing in high-quality CNC machined parts, they utilize 3, 4, and 5-axis CNC mill machines. The company serves defense, medical, and aerospace industries, delivering 100% American-made precision components.

Clarklake, MI

Production Saw, based in Clarklake, MI, provides precision CNC machining, turning, and production sawing services. They support programs from short-run development, ideal for prototyping, to full-scale production for OEMs and Tier 1 manufacturers. Their ISO 9001:2015 certified facility ensures accurate parts and reliable delivery.

Newark, CA

Based in Newark, CA, ProtoCafe provides advanced rapid prototyping and additive manufacturing services. They specialize in high-speed 3D printing (metal and plastic), laser cutting, rapid casting, and overmolding. The company emphasizes secure, ISO-compliant processes for challenging projects, offering expert advice for prototypes and low-volume production.

Contoocook, NH

Based in Contoocook, NH, Prototek Digital Manufacturing provides comprehensive digital manufacturing solutions from prototyping to production. Their in-house capabilities include 3D printing, CNC machining (milling, turning, EDM), sheet metal fabrication, and urethane casting. Prototek holds certifications like ISO 9001:2015, AS9100D, and ITAR.

Santa Clara, CA

Based in Santa Clara, CA, Radian Thermal Products Inc. is an ISO-certified manufacturer leveraging state-of-the-art machinery and CAD software. They specialize in creating high-quality, precise prototypes, primarily focusing on custom thermal solutions and heatsinks for diverse industries.

Redwood City, CA

Based in Redwood City, CA, Rapid Axis provides high-precision parts for prototyping and production with short lead times. Capabilities include 3, 4, and 5-axis CNC machining, sheet metal, DMLS, injection molding, urethane casting, and 3D printing. They offer quick turnarounds and competitive pricing.

RevPart provides rapid prototyping and manufacturing services, offering 3D printing, CNC plastic machining, metal CNC milling, and injection molding. They specialize in quickly bringing product designs to reality for industries like medical, automotive, aerospace, and consumer appliances, from concept to production.

Franklin, IN

Rapid Prototyping & Engineering, Inc., based in Franklin, IN, specializes in engineering services and prototype machining for low-volume components. They machine aluminum, magnesium, iron castings, billet, and fabricated parts. RPE delivers quality, innovative solutions and quick turnaround times for complex mechanical assemblies and new product development.

Houston, TX

Based in Houston, TX, Saxon Technologies provides CNC machining services, specializing in complex 3D components for prototype development. They serve diverse sectors including Petroleum, Defense, Aerospace, and Medical. Capabilities include CNC milling and turning, working with materials from common aluminum to exotic inconel and titanium.

San Diego, CA

Based in San Diego, California, SD Prototypes Manufacturing Solutions, Inc. provides precision machining, prototype manufacturing, and CNC machining services. They specialize in Wire EDM, Small Hole EDM Drilling, 2, 3, and 4-axis CNC machining, and 2-axis CNC turning, ensuring intricate designs and tight tolerances. The company emphasizes quality through rigorous procedures and certified equipment.

Ashtabula, OH

Based in Ashtabula, OH, Short Run Machine Products, Inc., established in 1999, specializes in providing short-run machining and cutting services. They leverage various machine capabilities to fulfill diverse customer needs, making them well-suited for prototype and custom component manufacturing projects.

Anaheim, CA

Established in 1997, Southern California Precision Machining, Inc. specializes in manufacturing military and commercial connectors. They offer comprehensive machining services for electronic, hermetic, and communications industries. As a trusted manufacturing partner, SoCal Machining addresses diverse custom machining requirements for demanding applications.

Amherst, NH

Based in Amherst, NH, S&S Machine, LLC is a precision machine shop specializing in prototype and low-volume CNC machining. They offer CNC milling, turning, 5-axis waterjet cutting, and wire EDM for complex parts. The company emphasizes quick turnarounds and also coordinates secondary services.

Weatherford, TX

Stoll Custom Machining is an owner-operated precision machine shop with over 20 years of experience. The company provides quick response to emergent needs, complex tooling, and on-time deliveries. It serves the Automotive, Aerospace, Medical, and Industrial manufacturing sectors.

Valencia, CA

Stratasys Direct Manufacturing provides advanced additive manufacturing and 3D prototyping services from facilities in Valencia, CA, Eden Prairie, MN, and Austin, TX. They offer high-quality, functional prototypes using diverse technologies and materials, supporting industries with rapid production solutions.

Laguna Hills, CA

Based in Laguna Hills, CA, Stuff USA Inc. provides comprehensive physical prototyping engineering, design, and manufacturing services in-house. They offer a one-stop solution for early-stage idea development, utilizing their own facilities and expertise to accelerate product realization for clients.

Brookfield, WI

Based in Brookfield, WI, Trace-A-Matic provides precision CNC machining services, producing complex and intricate components. They work with diverse materials like castings, forgings, and bar stock, meeting critical tolerances for markets including aerospace, defense, medical, and power generation from their US facilities.

Houston, TX

Ultimate Precision Tech, based in Houston, TX, is a machine shop specializing in CNC machining for prototypes and production. They manufacture components for aerospace, pharmaceutical, oil & gas, and automotive industries. Equipped with over 100 machines, including 5-axis and EDM, they handle diverse custom machining projects for OEMs and contractors.

Houston, TX

Based in Houston, Texas, USA Precision Machining Co. is a large manual job shop facility. They specialize in medium to heavy custom machining projects, offering turning, boring, and milling solutions with close tolerances. With over 25 years of experience, they provide quick turnaround and optimized production schedules for manufacturers of engineered products.

Greenville, SC

US Machine & Tool, based in Greenville, SC, provides precision machining services, leveraging a wide range of CNC technology. They offer rapid and accurate manufacturing solutions, handling projects from initial prototypes through to final product completion. The company serves various industries with its comprehensive machining capabilities.

Austin, TX

Based in Austin, TX, Waggoner Manufacturing is a CNC machining and fabrication shop. They specialize in small batch runs, producing custom parts with high precision accuracy up to .0002 inches. The company leverages advanced technology and three generations of expertise to deliver quality fabricated parts.

Warren, MI

Based in Warren, MI, Waltonen provides innovative engineering and manufacturing solutions. They specialize in high-precision machining and short-run production, offering dimensional engineering, tool design, and assembly fixtures. The company serves aerospace, automotive, and government/defense sectors.

Anaheim, CA

Based in Anaheim, CA, Precision Machining & Fab provides extensive CNC machining and sheet metal fabrication, specializing in quick-turnaround prototypes. Their services include welding, waterjet, and laser cutting, along with assembly and kitting for complex industrial projects. The company is ISO 9001:2015, AS9100D, and ITAR certified.

Campbell Prototyping specializes in rapid prototyping services, from initial concept to finished product. They provide custom design and creation using CNC machining and 3D printing. The company assists with entirely new part designs, part improvement, and reproducing rare components, offering short lead times and a wide variety of materials and sizes for diverse client needs.

South El Monte, CA

Based in South El Monte, CA, EM Proworks Machine Shop specializes in high-quality machining services. They provide fast, accurate prototype machining to bring ideas to life efficiently and offer custom part fabrication. The company works with materials like aluminum, stainless steel, and plastics to meet diverse project requirements.

Sun Valley, CA

Based in Sun Valley, CA, S & V Machining offers over 20 years of experience in precision CNC machining and milling. They specialize in manufacturing custom industrial, automotive, and aerospace parts. The company leverages robust CNC capabilities for efficient production, focusing on customer satisfaction with their diverse manufacturing expertise.

Stockton, CA

Based in Stockton, CA, Specialty Precision Machining delivers high-tolerance, precision CNC machining services, including cutting, turning, threading, reaming, and internal threading. They serve diverse sectors such as Electronics, Robotics, Medical, Semiconductor, and Oil and Gas. The company also coordinates outside services like heat treatment, grinding, honing, and plating.

Velo3D specializes in advanced metal additive manufacturing, providing services from rapid prototyping and first article production to full-scale part manufacturing. They produce critical, high-precision metal parts with complex geometries for industries including aerospace, defense, and energy.

Costa Mesa, CA

Based in Costa Mesa, CA, Advanced Precision Machining Inc. specializes in prototype machining services, offering CNC milling, turning, wire EDM, water jet cutting, and fabrication. The company serves the aerospace, medical, and defense sectors. They are AS9100 D certified, HUBZONE, EDWOSB, and ITAR registered, ensuring high-quality, compliant parts.

Orange, CA

APM Manufacturing, based in Orange, CA, is a vertically integrated metal fabrication facility. Specializing in aerospace, it offers prototype machining services from multiple Southern California locations. Capabilities include 3-axis and 5-axis milling, turning, water jet, and laser cutting, providing quick turnaround for small orders.

Based in Ephrata, PA, Astro Machine Works delivers high-precision CNC machining services, specializing in complex parts with 5-axis milling and turning. They provide custom manufacturing solutions, including welding and fabrication, for clients in aerospace, automotive, and medical sectors, ensuring tight tolerances and superior finishes.

Northbrook, IL

Based in Northbrook, IL, AT Precision, Inc. provides comprehensive CNC machining services for highly accurate parts. Their capabilities include precision grinding, milling, cutting, turning, and drilling across diverse materials like aluminum, steel, and titanium. They operate 24 hours a day, also offering reverse engineering.

Pflugerville, TX

Based in Pflugerville, TX, Austin Precision Machining and Manufacturing provides precision CNC machining and comprehensive manufacturing solutions. They specialize in CNC milling, turning, and 3D printing for rapid design and production. Additional services include fabrication, assembly, engineering, and inventory readiness, supporting various businesses with their manufacturing needs.

Converse, TX

Based in Converse, TX, Camargo's Custom Machining provides precision CNC machining services, specializing in prototyping and short-run production. They offer CNC milling, turning, reverse engineering, and CAD/CAM design for industries including Oil & Gas, Medical, Automotive, Defense, and Aerospace, focusing on custom parts with high accuracy.

Haslet, TX

Based in Haslet, TX, CNC Machining LLC provides precision custom CNC machining services. They specialize in manufacturing solutions for prototyping, short-run production, and fabricating complex components for various industrial applications.

Canoga Park, CA

Based in Canoga Park, CA, Delga Prototype Machine shop specializes in precision machining for prototypes and custom components. They offer quick turnaround services for parts made from all metals, including exotic materials like Inconel, Kovar, stainless steel, and brass, supporting urgent project requirements.

Detroit, MI

Based in Detroit, MI, Duggan Manufacturing accelerates prototype manufacturing to production. They offer rapid production of high-quality prototypes and components. Core capabilities include advanced CNC milling, turning, multi-axis machining, and EDM, serving aerospace, automotive, medical, and defense industries.

Tinley Park, IL

Based in Tinley Park, IL, D.W. Ram offers custom CNC manufacturing, prototyping, and production services. They specialize in creating working prototypes and custom-built machinery. With over 35 years of experience, the company provides precision and excellence, helping clients achieve efficient and affordable solutions.

Schiller Park, IL

Based in Schiller Park, IL, E.J. Basler Co. is a precision machine shop offering Hydromat, Davenport, Multi-Spindle, Swiss Screw, and CNC machining services. They provide high-volume, cost-effective solutions for custom projects, utilizing robust quality systems to produce millions of machined parts with zero defects.

Mahwah, NJ

Based in Mahwah, NJ, eMachineShop provides rapid prototyping and full production runs for custom parts. They specialize in CNC machining, sheet metal fabrication, 3D printing, and injection molding, working with over 50 materials. The company offers fast quotes and simplified custom manufacturing.

Hartland, WI

Fathom MFG provides advanced prototyping and manufacturing services from multiple US facilities. They specialize in rapid prototyping CNC machining, offering 3 and 5-axis milling and turning for metal and plastic materials. Capabilities include additive manufacturing, injection molding, urethane casting, and sheet metal fabrication, with comprehensive engineering and design support.

Pflugerville, TX

Based in Pflugerville, TX, Four Points Platinum Machining and Manufacturing is a precision CNC machine shop. They provide comprehensive manufacturing solutions including CNC milling, turning, 3D printing, fabrication, assembly, and engineering services. The company also offers inventory readiness and contract manufacturing for businesses of any size.

Huntsville, AL

Based in Huntsville, AL, American Precision Products offers custom injection molding of thermoplastics, elastomers, and thermoset materials. They provide prototyping services and in-house mold building for short and long production runs. The company serves demanding industries such as aerospace, military, and energy, backed by over 50 years of experience.

San Jose, CA

Based in San Jose, CA, JNC CNC Machining, LLC specializes in precision CNC machining for prototypes, small-batch, and production-scale parts. With over three decades of experience, they serve aerospace, medical, automotive, and electronics manufacturers. Capabilities include machining diverse materials from aluminum and stainless steel to advanced plastics.

John Prosock Machine, Inc. is a Pennsylvania-based CNC machining company established in 1982. They specialize in rapid prototyping, precision machining, CNC milling, and turning services. Utilizing CAD/CAM technology, they deliver high-standard CNC machined parts and assembly, focusing on building lasting customer relationships.

Germantown, WI

Based in Germantown, WI, Mahuta Tool Corp. specializes in CNC prototyping and manufacturing. They offer turning, milling, and multi-axis machining. Services include CAD modeling, engineering support, and various secondary processes. This ISO 9001:2015 certified company serves diverse industries, ensuring timely delivery with rush options.

Hawthorne, CA

Based in Hawthorne, CA, M&C Precision Machining Inc. specializes in high-quality, close tolerance machining services. Committed to AS9100 standards, they serve demanding clients in the aerospace and defense industries, including Boeing, SpaceX, and NASA. They leverage over 14 years of experience for precision parts and a meticulous approach.

Buda, TX

Method Manufacturing, based in Buda, TX, specializes in advanced precision machining services. They provide rapid prototype projects and production runs using 5-axis milling equipment to transform digital designs into physical components. Serving Aerospace, Defense, Nuclear, Robotics, and Energy sectors, the company is AS9100 D and ISO 9001:2015 certified.

Northbrook, IL

Based in Northbrook, IL, Panek Precision is a CNC machine shop specializing in high precision machining, multi-spindle screw machining, metal tube cutting, and 4-slide metal stamping. The company also provides assembly, robotics, and automation services, serving military and defense requirements.

Pasadena, CA

Pasadena, CA-based Precision Components Mfg. Co. provides high-precision CNC and manual machining with prototype and development support. They serve aerospace, defense, medical, and appliance industries, processing small to medium parts. Diverse materials include advanced alloys, aluminum, and plastics.

Orange, CA

Based in Orange, CA, Prototype & Short Run Services Inc. offers precision CNC machining for high-quality prototype and short-run parts. They provide services like CNC milling, turning, reverse engineering, and assembly. Serving diverse industries such as aerospace, medical, and automotive, they deliver tailored manufacturing solutions for complex components.

Roseville, MI

Based in Roseville, MI, RCO Engineering specializes in expert CNC prototyping and precision machining services. They provide rapid prototyping and low-volume manufacturing for automotive, aerospace, and defense industries. RCO offers diverse capabilities including plastic prototyping, metal stamping, and additive manufacturing. They hold AS9100D and ITAR certifications.

Elkhorn, WI

Based in Elkhorn, WI, Reader Precision Solutions specializes in innovative precision machining, blending traditional craftsmanship with advanced technologies. They provide mission-critical components using Swiss Cam, Swiss CNC, CNC lathes, mills, and coil-fed machines, supported by comprehensive CAD/CAM engineering services.

Athens, TX

Based in Athens, TX, Custom Machine Shop specializes in precision machining services for industrial clients. They offer custom fabrication and component manufacturing, providing solutions for prototyping and production needs. The company delivers high-quality, custom-machined parts for diverse projects.

San Diego, CA

Based in San Diego, CA, ARRK North America, Inc. specializes in rapid low-volume CNC machining for prototyping. The company supports clients throughout product development, from initial design to production, utilizing extensive knowledge and custom manufacturing capabilities to accelerate market entry.

Long Beach, CA

Based in Long Beach, CA, Custom Machining & Fabrication offers comprehensive machining services. They specialize in prototype machining, leveraging advanced CNC milling and turning capabilities to quickly bring design concepts to life. The company also provides manual turning, broaching, and supports both large and small batch production.

Based in Taunton, MA, GTR Manufacturing specializes in custom sheet metal fabrication. They provide prototyping, metal fabrication, CNC machining, and metal finishing services. This company operates as a comprehensive one-stop-shop, delivering solutions for various manufacturing requirements.

San Jose, CA

Based in San Jose, CA, Leftwing Precision LLC offers precision CNC machining services. They specialize in prototyping, low-volume, and high-volume production utilizing advanced 3, 4, and 5-axis CNC milling and turning capabilities. The company works with various metals and plastics for industries including aerospace, medical, and semiconductor.

San Jose, CA

Based in San Jose, CA, Pacific Prototype Manufacturing specializes in precision CNC machining and rapid prototyping services. They offer 3, 4, and 5-axis milling and turning capabilities. Serving diverse industries like semiconductor, medical, aerospace, automotive, and robotics, the company utilizes state-of-the-art machinery for high-quality manufacturing needs.

Los Angeles, CA

Based in Los Angeles, CA, T2 Design & Prototype specializes in comprehensive product design, invention, and prototype development services. The company helps clients bring new products to market by creating functional physical prototypes, playing a critical role in the product development lifecycle.

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How to Choose a Company

  • Assess their DFM (Design for Manufacturability) process: Do they proactively offer feedback on your design's machinability, suggest material changes, or identify potential tolerance stack-up issues before quoting?
  • Verify specific equipment capabilities: For your complex geometries, confirm they have multi-axis (e.g., 5-axis) CNC machining centers or specialized processes like Wire EDM, especially for intricate internal features or hard materials.
  • Check relevant quality certifications: For aerospace or defense components, require AS9100 certification and ITAR compliance; for medical devices, ISO 13485 is paramount, ensuring strict process control and traceability.
  • Evaluate their material expertise: If working with exotic alloys like Inconel, Titanium, or specialized plastics such as PEEK, ensure they have proven experience, the right tooling, and documented process parameters for these specific materials.
  • Confirm their metrology and inspection capabilities: Request examples of First Article Inspection (FAI) reports and verify they utilize calibrated equipment like CMMs (Coordinate Measuring Machines) for critical dimensional verification, not just basic hand tools.
  • Be wary of quotes that are significantly lower without any clarifying questions: A red flag is a supplier who accepts your drawing without probing for design intent, critical tolerances, or functional requirements – this often indicates they haven't fully grasped the project's complexity, leading to quality issues or costly rework later.

Frequently Asked Questions

What distinguishes a 'rapid prototyping shop' from a 'general machine shop' for my early-stage designs?

Rapid prototyping shops prioritize speed, iterative design changes, and often provide more proactive DFM feedback early in the development cycle. They typically have dedicated capacity for quick-turn jobs and are set up to handle multiple design revisions with minimal setup changes. General machine shops, while capable of prototypes, often have workflows optimized for production runs, which can mean longer lead times or less flexibility for design changes during the initial build.

How detailed do my CAD models and drawings need to be for an accurate prototype machining quote?

For the most accurate quote and to minimize misunderstandings, provide fully defined 3D CAD models (e.g., STEP, SolidWorks, Inventor files) along with 2D drawings that include clear GD&T (Geometric Dimensioning & Tolerancing) callouts, critical surface finish requirements (e.g., Ra values), material specifications, and any necessary post-processing. Ambiguity in drawings is a common cause of unexpected costs or out-of-spec parts.

When should I explicitly request First Article Inspection (FAI) reports for my prototypes?

You should always request an FAI report for prototype parts, especially for the first revision of a new design, if you are working with a new supplier, or if the part has critical functional features. An FAI provides documented proof that the first part (or small batch) meets all specified dimensions, material properties, and processing requirements before full production or testing commences. It's a crucial quality gate.

What's a common red flag when evaluating a prototype machining supplier's quote?

A significant red flag is receiving a quote that is drastically lower than others without any accompanying questions or DFM analysis from the supplier. If they don't ask about your critical features, tolerance stack-ups, or intended application, it suggests they may not have fully understood the part's complexity or the true scope of work, potentially leading to quality issues or scope creep later.

How important is material traceability (e.g., Certificates of Conformance) for prototype parts, even if I'm not in a regulated industry?

Material traceability is crucial, regardless of your industry. A Certificate of Conformance (CofC) or Mill Test Report (MTR) confirms that the material used meets the specified alloy, temper, and mechanical properties. This is vital for understanding how your prototype will perform, especially during functional testing. Without it, you introduce an unknown variable that could lead to inaccurate test results, design failures, or expensive re-prototyping down the line.

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