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CNC Milling Companies

Last updated: January 2026

This directory lists 105 cnc milling companies across the United States, from dedicated high-volume production houses specializing in specific materials to versatile job shops offering rapid prototyping services.

Buyers in this space are typically solving for critical challenges such as achieving exacting surface finish requirements (e.g., Ra 0.8 on medical components), consistently meeting stringent Geometric Dimensioning and Tolerancing (GD&T) callouts on aerospace parts, or finding capacity for large-format machining of heavy components. The specific machine configuration, whether 3-axis, 5-axis simultaneous, or horizontal milling centers, directly impacts their ability to address these diverse needs efficiently.

The cnc milling landscape features distinct supplier profiles: precision machine shops excelling in micro-machining for optics, general-purpose job shops capable of diverse projects, and specialized contract manufacturers focusing on specific industries like automotive or defense. Their differentiation often lies in their specific machine tool brands, available work envelopes, and expertise in exotic materials or secondary operations.

105 companies·77 emails·96 phones

Company Directory

105 companies nationwide

South Plainfield, NJ

Accelerated CNC, LLC, a South Plainfield, NJ-based company, provides precision CNC milling and turning services. They machine complex components from titanium, Inconel, stainless steels, and aluminum, supporting prototype to production runs. Industries served include aerospace, medical device, automotive, and pharmaceutical. Waterjet cutting capabilities are also available.

Burlington, NC

Based in Burlington, NC, AJ Precision Machining is a first responder and woman-owned business specializing in 7-axis Swiss machining with live tooling. They craft tight-tolerance, intricate small parts for medical, aerospace, automotive, and defense industries, working with steel, aluminum, brass, copper, and plastics.

Fremont, CA

Based in Fremont, CA, AJ Solutions Machining is an ISO Certified provider of CNC milling and turning services. They offer prototype and production machining for various metals and engineering plastics. Serving aerospace, defense, pharmaceutical, and automation industries, the company emphasizes close tolerance, high precision, and rapid turnaround.

Middletown, DE

Based in Middletown, DE, Allied Precision, Inc. is a precision machine shop specializing in custom CNC milling and turning services. They provide contract manufacturing, custom welding, and metal finishing to produce complex, multi-part, custom-engineered precision machined components and fabricated assemblies with efficient turnarounds.

Santa Maria, CA

Based in Santa Maria, CA, Aluma-Tech, Inc. has provided high-quality machining services since 1997. Specializing in precision machining solutions, the company offers expert CNC machining for various industrial applications. They are committed to delivering exceptional service and quality workmanship to their diverse clientele.

San Carlos, CA

Based in San Carlos, CA, American Prototype & Production, Inc. offers precision machining services for science and industry since 1989. They specialize in manufacturing for scientific instrumentation, R&D projects, semiconductor capital equipment, and medical devices. The company serves diverse industries, from start-ups to Fortune 500 companies, with a focus on quality.

Chino, CA

Based in Chino, CA, California Machine Specialties provides precision machining services, including 4-axis CNC milling and CNC turning up to 14.0” diameter. They specialize in manufacturing custom heat sinks and mechanical assemblies for the Aerospace & Defense industry, leveraging over 45 years of experience in high-quality production.

Granite Falls, NC

Based in Granite Falls, NC, Carolina Precision Components, Inc. specializes in CNC machining services. Capabilities include 3-axis to complex multi-axis milling, turning, and Wire EDM. Since 1995, the company delivers precision-engineered parts with tight tolerances and consistent quality for various industrial applications.

Blaine, MN

Based in Blaine, MN, Challenge Machine specializes in CNC precision machining and micromachining. Since 1999, they have worked with a range of machinable metals and high-performance plastics. They serve industries like medical, aerospace, automotive, and semiconductor, providing precise manufacturing solutions and CNC prototyping.

Ashville, NY

Based in Ashville, NY, Chautauqua Precision Machining, Inc. offers comprehensive CNC machining services. They specialize in CNC milling, turning, waterjet cutting, grinding, welding, and fabrication. Utilizing advanced equipment, the company serves demanding industrial sectors such as aerospace, medical, defense, and automotive.

Temecula, CA

Based in Temecula, CA, CNC Manufacturing specializes in high-precision aerospace CNC machining services. They craft components for modern flight vehicles using various materials like titanium, stainless steel, and aluminum. The company is ISO 9001:2015 certified, serving the aerospace, military, automotive, and firearms industries with over 30 years of experience.

Pomona, CA

Based in Pomona, CA, CNC & Milling By Design provides custom CNC metal, wood, and acrylic services. They offer comprehensive CNC machining, metalworking, and finishing for turnkey projects. Specializing in precision-cut signs, ironwork, and custom 2D/3D component fabrication, they serve restaurants, retail spaces, and corporate interiors.

Fort Wayne, IN

Based in Fort Wayne, IN, CNC Industries, Inc. provides precision machined components for the Aerospace, Defense, Transportation, Medical, Industrial, and Specialty markets. They offer CNC machining and manufacturing services, holding AS 9100 / ISO 9001 certifications and ITAR registration for quality and compliance.

Ontario, CA

Based in Ontario, CA, CNC Machining & Engineering, Inc. specializes in high-precision CNC machining services. The company operates Citizen Cincom Swiss machines, Brother Speedio CNC Mills, and Miyano CNC Lathes. They provide high-speed turning, threading, and precision milling, achieving tight tolerances up to +/-.0002 for complex parts.

Charlotte, NC

Based in Charlotte, NC, CNC Performance Engineering offers value-added, precision machining solutions for various applications. They specialize in providing high-quality machining services and manufacturing specialized products tailored for the racing, cotton ginning, and karting industries.

Woodside, NY

Based in Woodside, NY, Concept Machining LLC provides specialized machining services for industrial and commercial clients. The company focuses on addressing mechanical issues, particularly for elevator machines. They likely offer custom solutions, including CNC milling, to produce precision parts or perform repairs on essential equipment.

Lexington, KY

Contract Machining and Manufacturing Inc., based in Lexington, KY, provides precision CNC machining services. They offer production machining, facing, centering, sawing, grinding, welding, and fabrication. Serving automotive, heavy truck, HVAC, mining, and drilling industries, they also specialize in rock drilling tools. They focus on quality and dependable delivery.

Mocksville, NC

Carolina Precision Machining, Inc. provides precision machine part manufacturing services, including high volume turning and milling. Established in 1994, the AS 9100 and ISO 9001 certified company specializes in high-precision, close tolerance tooling. They serve aerospace, aviation, heavy equipment, and technology manufacturers.

Signal Hill, CA

Cutturmill Manufacturing Services is a California-based CNC machine shop and manufacturing service provider with 20 years of experience. They offer precision machining, assembly, and parts production to print, serving the Southern California region and beyond. Dedicated to quality workmanship, they are a 'PRINT TO PART PARTNER' for various projects.

Memphis, TN

Delta Modern Machining, based in Memphis, TN, provides CNC machining, modeling, fabrication, and assembly services. With over 30 years of experience, the company uses state-of-the-art CAD/CAM software. They serve diverse industries including medical, biotechnology, food manufacturing, chemical, and petrochemical.

Brooklyn, NY

Based in Brooklyn, NY, DIVISION provides professional CNC routing, laser cutting, and custom fabrication services. They specialize in precise designs for various materials, including wood, plastic, foam, and metals. Serving diverse industries in NYC, DIVISION offers high-quality solutions for prototypes, custom designs, and production runs.

Oakland, CA

Based in Oakland, CA, Glint Manufacturing LLC provides comprehensive machining and fabrication services. Specializing in precision CNC milling and turning, they also offer manual machining, multi-process welding, and 12KW fiber laser cutting. They handle projects from simple shapes to complex geometries, accommodating single part runs or volume production in materials like steel and aluminum.

Long Island City, NY

G T Machine & Tool Corporation provides CNC milling and turning services from its Long Island City, NY facility. They utilize 19 CNC machines for prototype to production runs, working with aluminum, titanium, and plastics. Serving aerospace, medical, and commercial industries, the company is AS9100 and ISO certified.

Santa Clara, CA

Based in Santa Clara, CA, High Speed CNC specializes in ultra-precision 3D, 4, and 5-axis CNC machining of highly complex, close-tolerance parts. Serving aerospace, medical, and semiconductor industries, they work with diverse materials including exotic alloys. The company is AS9100 and ISO 9001 registered.

Hayward, CA

Based in Hayward, CA, IMT Precision is a full-service CNC machine shop specializing in multi-axis CNC milling and turning. They provide high-quality, precision-machined components for prototyping and production. Serving aerospace, medical, semiconductor, robotics, defense, and automotive sectors.

Menifee, CA

Based in Menifee, CA, In-House CNC Service specializes in providing precision CNC milling services. They leverage their in-house capabilities to manufacture custom components and prototypes, offering high-quality machined parts for a diverse range of industrial and commercial applications.

Milpitas, CA

Based in Milpitas, CA, Influx Labs CNC Machining provides precision CNC milling and turning services. They specialize in prototyping and production runs, utilizing advanced equipment for complex parts. The company serves diverse industrial sectors, including medical, aerospace, automotive, robotics, semiconductor, and defense, offering high-quality manufacturing solutions.

Jonesboro, AR

Based in Jonesboro, AR, Jonesboro Tool & Die Company, Inc. specializes in high-quality die manufacturing. They offer comprehensive custom and production machining services, including CNC, Wire EDM, and grinding. The company also provides punch press stamping facilities for both short and long production runs.

Santa Clara, CA

Based in Santa Clara, CA, JP Metal Fabrication provides precision CNC machining and milling, sheet metal fabrication, welding, and finishing. They specialize in quick-turn prototypes and custom components from alloys, aluminum, steel, and plastics, serving diverse industrial clients with comprehensive manufacturing solutions.

Rockford, IL

Based in Rockford, IL, Kadon Precision Machining provides quality precision machined parts. The company utilizes state-of-the-art facilities to specialize in precision machining, Swiss machining, and CNC machining services. They deliver innovative manufacturing solutions and high-quality components, serving industrial clients with custom production requirements.

Sunnyvale, CA

Based in Sunnyvale, CA, K&S Precision Machining, Inc. is an ISO 9001:2015 compliant provider of precision machining services. Founded in 2001, the company operates its own facility to produce high-quality components, indicating strong capabilities in CNC milling for various industries.

Glendale, CA

Based in Glendale, CA, LA CNC Inc. provides precision CNC machining services, including turning and milling for a variety of metals and shapes. The company specializes in fast, high-volume production for complex turned parts, offering short runs, rush orders, and assembly with over 30 years of experience.

Sacramento, CA

Based in Sacramento, CA, Langill's General Machine Inc. is a precision CNC machining facility specializing in rapid prototyping and production. They operate over 18 CNC machines, including 5-axis, mill turn, and multi-pallet capabilities within an 18,000 sq ft facility, adhering to ISO9000 quality compliance.

L&T Precision is a contract manufacturing partner providing precision machining, sheet metal fabrication, assembly, finishing, and integration services. They utilize materials like aluminum, titanium, and high-strength steels. Serving aerospace, defense, energy, commercial, and medical industries, the company offers comprehensive manufacturing solutions for diverse product requirements.

West Fargo, ND

Mid-America Aerotech, based in West Fargo, ND, is an aerospace company providing manufacturing services built to exact specifications for military, commercial, and private aviation. They offer comprehensive machining capabilities alongside maintenance, overhaul, and repair (MRO) for aircraft and helicopters, including specialized hydraulics and cold spray repairs.

Santa Clara, CA

Master Precision Machining, Inc., based in Santa Clara, CA, provides precision CNC milling services. They leverage advanced Hermle 5-Axis CNC and KERN Pyramid Nano machines to manufacture custom components. Quality is ensured with Zeiss CMM scanning and Zygo surface finish capabilities, alongside AS9100D and ISO 9001:2015 certifications.

Rancho Cucamonga, CA

Mindrum Precision, Inc. is an ISO 9001:2015 certified contract manufacturer specializing in high-precision CNC milling and other machining services. Based in Rancho Cucamonga, CA, the company produces critical components and assemblies for aerospace, defense, medical, and semiconductor industries, ensuring exceptional quality and tight tolerances.

Jackson, MI

M&M Automatic, based in Jackson, MI, is a machining provider founded in 1990. They specialize in CNC milling, turning, and screw machining, offering rigorous quality assurance and rapid turnaround. Precision parts are produced from prototype to production for heavy machinery, transportation, and defense industries.

Rockford, IL

Based in Rockford, IL, Modern Group provides custom machining services, specializing in precision CNC milling and lathe turning. With over 100 years of engineering experience, they also offer high-volume tube fabrication and custom forged parts manufacturing to meet diverse customer needs.

Houston, TX

Based in Houston, TX, M-Tech Precision Machining provides precision components for manufacturers across diverse industries. They offer general machining, manual lathe and mill work, and CNC capabilities with both lathe and manual operations. The company specializes in prototype productions, committed to quality with full 100% inspection of all parts.

NE-XT USA specializes in complex, high-quality CNC machining and assembly services for critical applications. Utilizing multi-axis machining and CNC turning, the company manufactures precision components for demanding sectors like aerospace, defense, power generation, space, and industrial OEMs. They are AS9100 Revision D Certified.

Hayward, CA

Based in Hayward, CA, Neal's CNC offers custom cutting and fabrication services. Utilizing a CNC router, they specialize in small batch and single part runs for materials including hard and soft woods, plastics, carbon fiber, fiberglass, and non-ferrous metals such as aluminum and brass. They also provide laser cutting and etching.

San Jose, CA

Noron Precision Machining, Inc. is an ISO 9001:2015 certified, woman-owned business established in 1977. Specializing in CNC milling and turning, they deliver precision machined parts from prototype to production. The company focuses on superior quality, on-time delivery, and offers light assembly for industrial clients.

Cornelius, NC

Based in Cornelius, NC, NS Precision Inc. provides advanced CNC machining services, including 3-axis and 5-axis machining, rapid prototyping, and automated production. Specializing in high-quality parts for the motorsports, defense, and aerospace industries, the company offers comprehensive manufacturing solutions. They facilitate plating, surface finishing, and complex secondary operations.

San Jose, CA

Based in San Jose, CA, Optima Precision operates a CNC machine shop specializing in precision machining services. They offer CNC milling for multi-axis parts and CNC turning for cylindrical components, handling projects from complex one-offs to high-volume production runs with tight tolerances.

Oak Creek, WI

Based in Oak Creek, WI, Owens Industries is a precision CNC machine shop offering advanced CNC services. They specialize in machining critical medical components and manufacturing high-volume aircraft parts, emphasizing accuracy and complexity. The company provides expert solutions for demanding industrial projects.

Pearland, TX

Based in Pearland, TX, Pearland Precision provides CNC machining services, specializing in dependable, high-quality, and competitively priced parts. The company strengthens customer supply chains by scheduling all processes to ensure on-time delivery and utilizing lean manufacturing techniques to drive out waste.

Phoenix Precision Machining is an ISO-certified manufacturer that provides precision machining services. Utilizing a variety of new equipment, the company is adept at working within very tight tolerances. They focus on direct manufacturing, serving industrial clients with high-quality, precise components and assemblies.

Yorba Linda, CA

Based in Yorba Linda, CA, Precise Aerospace Manufacturing provides specialized manufacturing solutions for the aerospace industry. The company produces production parts, serving Tier 1 aerospace manufacturers with their precision machining needs and expertise.

Wichita Falls, TX

Based in Wichita Falls, TX, Precision Machine Works provides quality manufacturing services. Founded in 1994, the company boasts over 25 years of experience, employing skilled professionals. They are dedicated to delivering high-quality products and innovative manufacturing solutions, leveraging strong production capabilities.

Fountain Inn, SC

Based in Fountain Inn, SC, Precision Machine LLC specializes in custom machine components, offering CNC milling, turning, and broaching services. With over 30 years of experience, they work with various metals and plastics, focusing on low to mid-volume orders, from prototypes to batch production.

Riverside, CA

Based in Riverside, CA, Price Manufacturing Co. specializes in precision CNC machining and screw machining services. They provide custom aluminum and other custom CNC machine parts. Serving businesses in California and Arizona, the company acts as a dedicated production partner for various manufacturing requirements.

Richmond, MI

Based in Richmond, MI, Prosper-Tech Machine & Tool provides tight-tolerance CNC machining for aerospace and defense OEMs. Utilizing state-of-the-art equipment and automation, the company is AS9100 and ISO 9001 certified, and ITAR-registered. They deliver mission-critical parts with efficient lead times.

Willoughby, OH

Based in Willoughby, OH, Quality CNC Machining, Inc. specializes in precision Swiss machining and multi-axis CNC mill-turn manufacturing. Serving aerospace, military, medical, and automotive sectors since 1988, they produce intricate components with tight tolerances. The company holds AS9100D and ISO 9001 certifications.

Redwood City, CA

Based in Redwood City, CA, Rapid Axis specializes in high-precision parts for prototyping and production. They offer extensive capabilities including 3, 4, and 5 Axis CNC Machining, Sheet Metal, DMLS, Injection Molding, Urethane Casting, and 3D Printing. The company delivers competitively priced, quality components with short lead times.

RevPart offers rapid prototyping and manufacturing services, including CNC plastic machining, metal CNC milling, 3D printing, and injection molding. They support projects from prototype to production, serving diverse industries such as medical, automotive, and aerospace, helping clients bring product designs to reality efficiently.

Ripley, NY

Based in Ripley, NY, Ripley Machine & Tool Company is an ISO 9001:2015 certified machine shop. They specialize in precision components for the valve industry, offering CNC milling, CNC turning, and grinding services. The company provides production machining services to clients across Western NY and the US.

Davenport, IA

Based in Davenport, IA, Seaberg Industries is a contract machining and metal fabrication company. They provide turnkey manufacturing of fabricated and machined parts and assemblies. Capabilities include precision CNC machining, laser cutting, welding, bending, and forming for custom metal fabrication and prototyping needs.

Livermore, CA

Based in Livermore, CA, Simple Machining provides services including CAD drafting, 3D printing, and CNC milling. Specializing in rapid prototyping and production, they deliver up to 100 parts in as little as one business day. The company supports clients through various stages of the design process.

Anaheim, CA

Southern California Precision Machining, Inc. specializes in custom machining services for military and commercial connectors. Established in 1997, this provider meets all machining needs for the electronic, hermetic, and communications industries, offering reliable manufacturing solutions.

Corona, CA

SoCal Precision Engineering, based in Corona, CA, specializes in advanced CNC machining services, including precision milling and turning. They produce complex, high-tolerance components for diverse sectors such as aerospace, medical, defense, and automotive. The company offers both prototype and production machining solutions.

Elma, NY

Based in Elma, NY, Stony Manufacturing Inc. provides precision CNC milling and turning services. As a full-service machine shop, they also offer conventional machining, welding, fabrication, and assembly for custom components. Serving diverse industries like aerospace, defense, medical, and automotive, the company focuses on high-quality manufacturing solutions.

Fremont, CA

Based in Fremont, CA, Superior Precision Machining, LLC offers comprehensive CNC machining services, including 3, 4, and 5 axis capabilities. They deliver precision parts for complex prototypes, handling both high volume and limited production runs. ISO 9001:2015 certified, they serve industry leaders across various sectors.

Hayward, CA

Based in Hayward, CA, SYD Precision Manufacturing specializes in CNC precision milling, turning, and 4-axis machining. They offer rapid prototyping, ME-TE fixture fabrication, and glass-filled plastic machining. Serving the Bay Area, the company utilizes state-of-the-art Fanuc machines and over 25 years of experience to deliver high-quality, quickly produced components.

Garden Grove, CA

Based in Garden Grove, CA, TJ Aerospace is a CNC manufacturing job shop specializing in the production of high accuracy, complex, and tight tolerance machined parts. The company serves the aerospace, commercial, defense, and medical industries, focusing on uncompromised quality and on-time delivery.

Based in Southaven, MS, Tomlinson Machine & Tool LLC provides precision parts and manufacturing services. The company specializes in both manual and CNC machining, serving customers across the Mid-South region with over 30 years of experience.

Houston, TX

Based in Houston, TX, Ultimate Precision Tech is a machine shop providing comprehensive CNC machining services. Utilizing a large fleet of CNC mills, lathes, EDM, and 5-axis machines, they manufacture precision parts and components. They serve diverse industrial sectors including aerospace, oil and gas, automotive, and pharmaceutical companies.

Auburn Hills, MI

United CNC Machining, based in Auburn Hills, MI, specializes in 5-axis and multi-axis CNC milling and turning. As exotic alloy experts, they offer comprehensive precision manufacturing from prototyping to production using advanced CNC work centers. The company holds AS9100D and ISO 13485 certifications.

Huntington Beach, CA

Based in Huntington Beach, CA, Universal Machine Shop provides precise CNC milling services from prototype development to final production. They meticulously craft CNC parts to exact specifications, offering additional services like assembly, engineering, design, rapid prototyping, and turning for diverse materials.

Houston, TX

Based in Houston, TX, USA Precision Machining Co. is a manual job shop providing medium to heavy custom machining projects. With 25 years of service, they offer turning, boring, and milling solutions. They are a close tolerance shop focused on quality, precision, and on-time delivery for client specifications.

Independence, MO

Based in Independence, MO, 3E Rapid Prototyping Limited specializes in rapid prototyping and custom part manufacturing. The company provides 5-axis CNC machining services, working with over 100 metals and plastics, and offering diverse surface finishes. They deliver prototypes and end-use parts for industrial clients efficiently.

Santa Fe Springs, CA

Advanced Machine Products, based in Santa Fe Springs, CA, offers precision milling services. Utilizing state-of-the-art equipment, they process various materials including sheets, plates, flat bar, and extrusions, handling capacities up to 22 by 40 feet. The company serves Aerospace, Automotive, and general commercial industries.

Elimold provides short-run machining services as an in-house capability for its customers. They specialize in prototyping and low-volume production, offering comprehensive manufacturing solutions. These services encompass precision CNC machining, catering to diverse industry needs with quality and efficiency.

Frigate provides precision CNC machining and expert CNC manufacturing solutions in the USA. They offer quick turnarounds for both prototype and production needs, helping clients solve their manufacturing challenges.

Based in St. Albans, NY, Hi-Tech CNC Machining operates as a precision CNC machine shop. The company specializes in comprehensive CNC machining services, offering complete CAD/CAM design and manufacturing of precision machined parts for diverse industrial applications.

HPPI provides precision CNC milling services, including 3, 4, and 5-axis capabilities, for low and high-volume production. They support Aerospace, Medical Device, Biotechnology, and Scientific Instruments. Certified ISO 13485, AS9100, ITAR, and FDA registered, the company offers high-quality, compliant manufacturing solutions.

Brooklyn, NY

Based in Brooklyn, NY, RedHook CNC Service offers CNC routing and milling for the New York City area. They provide 2D, 2.5D, 3D, and 4-axis CNC milling, processing materials such as plywood, hardwoods, composites, laminates, HD foams, and various plastics.

Grove City, OH

Based in Grove City, OH, Advance CNC Machining delivers high-quality CNC machined parts for production volumes. They leverage ITAR and ISO certified 24/7 automated production, with expertise in high-volume aluminum machining. Services include specialized tooling for complex features and just-in-time programs.

Elyria, OH

Alco Manufacturing, based in Elyria, OH, is a precision machine shop with over 50 years of experience. They specialize in CNC milling and turning, multi-spindle screw machining, and Swiss machining. Crafting high-accuracy components from steel, stainless steel, brass, and aluminum, Alco serves demanding industries with precision machined parts.

Astro Machine Works, based in Ephrata, PA, delivers high-precision CNC machining services, specializing in 5-axis milling and turning for complex parts. Since 1984, they have provided custom manufacturing solutions to diverse clients in industries like aerospace, automotive, and medical, also offering welding and fabrication.

Pflugerville, TX

Austin Precision Machining is a precision CNC machine shop in Pflugerville, TX, offering comprehensive manufacturing solutions. They specialize in CNC milling and turning services, providing lower production costs and superior quality. Additional capabilities include assembly, engineering, fabrication, inventory readiness, manufacturing, and 3D printing.

Cedarburg, WI

Carlson Tool & Manufacturing Corp, located in Cedarburg, Wisconsin, provides precision machining services. Specializing in CNC milling, turning, EDM, and grinding, the ISO-certified, ITAR-registered company also offers plastic injection tooling, deep hole drilling, honing, and inspection, serving diverse industrial clients.

Lombard, IL

Based in Lombard, IL, Chicagoland Swiss Machining specializes in high-volume Swiss screw machine products and CNC machined parts. They offer expert CNC turning and comprehensive machining services, serving industrial and commercial B2B customers.

San Antonio, TX

Based in San Antonio, TX, Cox Manufacturing Company provides ISO-certified ultra-precision and micromachining services for miniature parts. They specialize in high-volume orders, working with a wide range of materials including various metals and plastics. Serving the medical and electronics industries, all parts are reliably made in the USA.

Canoga Park, CA

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

Mountain View, CA

Based in Mountain View, CA, DP Precision provides rapid prototyping and high-quality production CNC machining services. They specialize in comprehensive CNC milling, turning, multi-axis machining, and EDM. The company serves industries including aerospace, medical, and semiconductor, delivering precise, complex parts.

Mahwah, NJ

eMachineShop, located in Mahwah, NJ, provides custom manufacturing services with a strong focus on precision CNC machining, including milling and turning for metal and plastic parts. They cater to both rapid prototyping and production runs. Their offerings also include sheet metal fabrication, injection molding, and 3D printing for diverse commercial needs.

Santa Clara, CA

Based in Santa Clara, CA, Euro Machining specializes in CNC milling, turning, and rapid prototyping services. The company also provides comprehensive assembly services, utilizing cutting-edge CNC machinery to serve high-tech, aerospace, and medical device manufacturing clients.

Based in Olive Branch, MS, Ferguson Industrial Co provides expert machining, fabrication, and industrial repair services. Their capabilities include CNC machining, plasma cutting, and hydraulic system repair, offering both in-shop and on-site solutions. The company delivers comprehensive industrial support and engineering expertise for demanding jobs, emphasizing precision.

Based in Olive Branch, MS, F & S Metal Works LLC provides a comprehensive range of metalworking solutions. They specialize in direct CNC milling, CNC plasma cutting, and general CNC manufacturing services. The company also offers expert welding and fabrication capabilities for steel, stainless steel, and aluminum components to meet various client needs.

Keene, NH

GS Precision, based in Keene, NH, is a precision machining company specializing in diverse capabilities including CNC Swiss multi-axis lathes and 5-axis machining centers. They manufacture mission-critical components as a tier-one supplier for defense, commercial, and military aircraft industries, and aerospace customers.

Oakland, CA

Based in Oakland, CA, Hawk CNC Corp. is a precision machine shop specializing in state-of-the-art 3 and 5-axis CNC manufacturing and rapid prototyping. They offer quick turnaround for complex projects, rapid prototype manufacturing, and short production runs, with no minimum order required. Serving customers across the United States.

Los Angeles, CA

Based in Los Angeles, CA, Herrera's Machine Shop, Inc. is a professional machine shop specializing in manufacturing and repairs. They are experienced in manufacturing new parts from blueprints and repairing worn components. Their capabilities include milling, welding, lathes, and general precision metal works, providing high-quality machining solutions.

Thornton, CO

Based in Thornton, CO, Intrex Aerospace specializes in precision CNC machining for Aerospace, Defense, and Space industries. With over 30 years of experience, they utilize multi-axis CNC equipment, including turn/mill lathes and various machine centers, to produce high-quality, custom-engineered components. They offer comprehensive supply chain solutions from raw material to finished product.

San Jose, CA

Based in San Jose, CA, JNC CNC Machining, LLC provides high-quality, precision CNC machining services. This family-owned machine shop, with over three decades of experience, manufactures durable, complex parts for aerospace, medical, automotive, and electronics manufacturers. They handle prototypes, small-batch, and production-scale requirements.

Manitowoc, WI

Based in Manitowoc, WI, Kaufman Manufacturing provides precision contract machining services. They specialize in producing custom parts for specialized projects, serving as a subcontractor to meet client specifications. The company holds ISO 9001:2015 certification, reflecting a strong commitment to quality and consistent manufacturing processes.

Dunkirk, NY

Lakeside Precision Inc. provides comprehensive CNC machining and custom fabrication services from its facility in Dunkirk, NY. Specializing in 3, 4, and 5-axis CNC milling, CNC turning, wire EDM, and grinding, the company also offers welding, design, and assembly services for various industries.

Chula Vista, CA

Based in Chula Vista, CA, Miller CNC is an AS9100- and ISO9001-certified CNC machine shop. They offer 3-axis and 5-axis CNC milling and turning, specializing in hard metal and complex parts machining. Miller CNC works with Inconel, titanium, and exotic alloys for the aerospace, defense, and energy sectors.

Anaheim, CA

Based in Anaheim, CA, Moseys Production Machinists, Inc. provides CNC, precision, and Swiss machining services. They process diverse materials like aluminum, stainless steel, and plastics for industries including aerospace, medical, and automotive. The company holds ISO 9001, AS 9100, and NADCAP certifications.

Rancho Cucamonga, CA

Precision Aerospace Corporation, based in Rancho Cucamonga, CA, manufactures aerospace components. As an AS9100, ISO9001, and NADCAP-certified facility, it specializes in precise machining, including chemical milling, and works with exotic alloys. The company prioritizes safety and quality for its aerospace industry clients.

Roseville, MI

Based in Roseville, MI, RCO Engineering provides rapid prototyping, precision CNC machining, and low-volume manufacturing services. Their capabilities include plastic injection molding, metal stamping, CNC cut & sew, and molded & milled foam. RCO serves the automotive, aerospace, and defense industries, holding AS9100D and ITAR certifications.

Norco, CA

SR Machining Inc., based in Norco, CA, offers comprehensive in-house CNC machining, specializing in precision milling and turning of plastics and metals. They serve demanding industries like medical, aerospace, and industrial, focusing on stringent tolerances. The company is ABS certified to ISO 9001 and AS9100 quality standards.

San Fernando, CA

Based in San Fernando, CA, W Machine Works delivers precision CNC machining services, specializing in 5-axis milling for the aerospace and defense sectors. They manufacture complex parts for programs including F-35, Apache, Boeing, and Airbus. The company is ISO 9001 and AS9100 certified, ensuring high-quality manufacturing.

Oxnard, CA

Based in Oxnard, CA, A&M Machine Shop CNC Machining provides precision CNC machining services. Specializing in custom part fabrication, prototyping, and production runs, they offer capabilities like CNC milling and turning. They serve industrial clients requiring high-quality metal and plastic components for diverse applications.

Roxboro, NC

Roxboro Precision Machining, located in Roxboro, NC, specializes in providing precision machining services. The company utilizes advanced equipment to offer CNC milling and other custom fabrication solutions, serving industrial clients with high-quality component production.

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How to Choose a Company

  • Verify their genuine 5-axis simultaneous machining capabilities, not just 3+2 axis positioning, especially for parts with complex contoured surfaces or deep pockets requiring single-setup machining to maintain accuracy.
  • Assess their proficiency in interpreting and executing Geometric Dimensioning and Tolerancing (GD&T) on your drawings; inadequate understanding here is a common red flag leading to non-conforming parts or excessive inspection costs.
  • For aerospace or medical applications, absolutely require AS9100 or ISO 13485 certifications, respectively, and inquire about their specific process controls for material traceability and first article inspection (FAI) reports.
  • Confirm their experience with your specific material (e.g., Inconel, Titanium, PEEK, high-temp alloys), including their tooling strategies and post-machining stress relief or heat treatment capabilities, which are crucial for material integrity.
  • A significant gotcha: always request a DFM (Design for Manufacturability) review early in the process; a good supplier will proactively suggest design changes to reduce cycle times, optimize material usage, or improve part quality, rather than just quoting to print.
  • Evaluate their Quality Management System beyond just ISO 9001:2015; inquire about their CMM capabilities, calibration schedules for inspection equipment, and how they manage in-process checks to hold tight positional and dimensional tolerances.

Frequently Asked Questions

What CAD file formats should I provide for quoting CNC milled parts?

The industry standard for 3D models is often STEP (.step/.stp) or IGES (.igs). For 2D drawings, PDF is common, but ensure critical dimensions, tolerances (including GD&T), material, and surface finish callouts are clear. Some shops can work directly from native SolidWorks (.sldprt), Inventor (.ipt), or CATIA files, but STEP offers broader compatibility.

How do I distinguish between a CNC milling shop suitable for prototypes versus high-volume production?

Prototype shops often excel at rapid turnaround, single-part runs, and iterative design changes, typically utilizing readily available tooling and less elaborate fixturing. High-volume production shops, in contrast, invest in specialized workholding, automation (like pallet changers or robotic loading), and optimized tooling paths to minimize cycle times and unit cost, often requiring higher minimum order quantities.

What impact does specifying a very tight surface finish (e.g., Ra 0.8µm) have on lead time and cost?

A very tight surface finish like Ra 0.8µm (32 micro-inches) on a milled part significantly increases machining time and cost. It typically requires additional finishing passes with specialized cutters, potentially slower feed rates, and often leads to secondary operations like polishing, vibratory finishing, or media blasting. It also necessitates more rigorous inspection. Only specify it where functionally critical.

How can I assess a CNC milling supplier's Geometric Dimensioning and Tolerancing (GD&T) proficiency?

Beyond asking directly, review their past projects for parts with complex GD&T callouts. Ask about their CMM programming capabilities and how they verify features defined by GD&T (e.g., position, profile of a surface). A strong indicator is a supplier who provides insightful DFM feedback related to GD&T, suggesting datum feature refinements or tolerance stack-up analysis.

Should I choose a CNC milling company that offers in-house secondary operations like heat treatment or anodizing?

Opting for a supplier with in-house secondary operations can streamline your supply chain, reduce lead times, and simplify quality control, as fewer handoffs mean less risk of damage or miscommunication. However, specialized processes like Nadcap-accredited heat treatment or complex anodizing might still be outsourced by even large shops. Evaluate based on the complexity and criticality of the specific secondary operations you require.

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