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Last updated: January 2026
This directory lists 64 ceramic machining companies across the United States, from agile R&D-focused job shops specializing in novel material prototyping to high-volume production facilities capable of sustained output for critical components.
Buyers engage ceramic machining companies to solve a range of challenges, from manufacturing components requiring extreme wear resistance and biocompatibility, such as ceramic bearings or dental implants, to intricate insulators needing tight geometric dimensioning and tolerancing for high-frequency electronics. The specific problem often revolves around achieving superior surface integrity and dimensional precision on materials like silicon nitride or zirconia, which are difficult, if not impossible, to machine effectively after firing with conventional methods.
Suppliers in this space distinguish themselves primarily by their material specialization – some excel in alumina and zirconia, others in silicon carbide or boron nitride – and their process expertise, whether it's precision green machining, diamond grinding, or advanced laser machining for complex geometries. You'll find shops focused on low-volume, high-complexity prototyping, and those geared for high-volume production runs with significant automation and in-line quality control for consistent output.
To engage effectively, buyers should come prepared with fully dimensioned 2D prints that clearly call out critical tolerances, surface finish requirements (e.g., Ra, Rz), and material specifications, including density and purity. Suppliers expect detailed CAD models, material certifications, and clarity on end-use application to accurately assess machinability, potential for micro-cracks or edge chipping, and to provide comprehensive design for manufacturability (DFM) feedback.
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64 companies nationwide
Based in Riegelsville, NJ, Accuratus Corporation specializes in precision machining and grinding of technical engineered ceramics and glasses. The company also provides green ceramic machining and ceramic firing services, delivering high-precision components for various industrial applications.
Accu-Tech Laser Processing, INC, based in San Marcos, CA, specializes in laser machining, drilling, and scribing services. With 30+ years of experience, they provide high-quality, cost-effective laser cutting with a niche in ceramics. They serve aerospace, defense, medical, and commercial sectors, offering solutions from prototypes to high-volume production.
Based in Orange, CA, Advanced Ceramic Technology specializes in the manufacturing and precision machining of industrial ceramic parts. Since 1983, the company has provided tight tolerance CNC ceramic machining, grinding, slicing, lapping, pressing, and firing services. They are dedicated to quality, craftsmanship, and professionalism, serving industrial customers with expertly machined components.
Based in Harbor City, CA, Advanced Ceramics Precision Manufacturing, LLC specializes in industrial ceramic material machining for prototype and production quantities. The company offers fast response and quick turnaround times, manufacturing components precisely to drawing specifications. They also provide final inspection, cleaning, and precision part shipping.
Advanced Industrial Ceramics, LLC, based in San Jose, CA, provides precision machining and grinding services for ceramics, quartz, and other hard or tough materials. They deliver complex designs rapidly for demanding customers, supporting new product introductions and production in semiconductor, electronics, and aerospace industries.
Astro Met, Inc. based in Cincinnati, OH, specializes in advanced ceramics machining and manufacturing services. They engineer and produce components from zirconia, alumina, and machinable ceramics. The company provides solutions for demanding wear, corrosion, thermal, and electrical applications, meeting challenging industrial requirements.
Based in Woburn, MA, Bomas Machine Specialties has provided advanced ceramics machining since 1959. The company specializes in precision machining of advanced ceramics and composite materials for wear applications. They serve diverse industries including automotive, medical, aerospace, and defense, offering prototype to production quantities.
Bullen Ultrasonics provides precision ultrasonic, laser, and CNC machining services for hard, brittle, and specialty materials. They specialize in creating complex features in technical ceramics such as silicon carbide, alumina, and zirconia. The company serves industries including semiconductor, aerospace, and MEMS.
CCT Precision Machining specializes in high-precision machining of advanced materials, including a wide range of technical ceramics like Alumina, Zirconia, and Silicon Carbide. Based in Grapevine, TX, they provide CNC machining, grinding, lapping, and polishing services for industrial applications.
Based in Hudson, MA, Centerline Technologies provides ultra-precision services for grinding, lapping, polishing, diamond sawing, and laser machining. The company specializes in working with materials such as metals, ceramic, and sapphire, serving various industrial and commercial B2B clients.
Based in Carroll County, NH, Ceramco, Inc. offers full-service technical ceramic manufacturing. Specializing in materials formulation, engineering, and tooling, they produce complex OEM ceramic parts using high/low pressure injection molding. Ceramco serves aerospace, scientific instrument, energy, and consumer product sectors with precision components.
Based in Oakley, CA, Ceramic Products Corporation specializes in precision diamond machining and grinding of hard-fired ceramics. They provide high-quality ceramic components and assemblies, serving microwave and telecommunications customers with custom fabrication and quick turnarounds.
Based in St. Albans, VT, Superior Technical Ceramics specializes in ceramic manufacturing with over 116 years of experience. The company designs and produces specialized ceramic parts, capable of manufacturing to precise configurations and tolerances. They operate machine tools for precision ceramic fabrication, offering comprehensive material solutions.
Based in San Diego, CA, COI Ceramics Inc. designs and produces advanced ceramics and ceramic matrix composites. They create components for aerospace, military, and commercial power applications, including heat shields, radomes, and turbine engine combustors. The company offers R&D and production services for advanced ceramic solutions.
Based in Saxonburg, PA, Du-Co Ceramics Company is a fully integrated manufacturer of technical ceramic components and insulators. They utilize processes like dry pressing, extrusion, glazing, and precision grinding. Notably, they provide secondary machining services for custom parts made from Steatite, Alumina, Cordierite, and other advanced ceramic materials.
DuraScan Heads provides precision contract manufacturing services, specializing in high-skill crafting processes. Capabilities include lapping, grinding, machining, polishing, and buffing. They offer advanced engineering solutions for complex components, serving various industries that require tight tolerances and superior surface finishes.
Based in Garland, TX, EDM of Garland Inc specializes in electrical discharge machining services, including Wire, Sinker, and Small Hole EDM, and CNC Machining. They are proficient in processing challenging materials such as conductive ceramics, hardened steels, and titanium for diverse industrial applications.
Based in Houston, TX, ER Machining is a precision CNC machine shop offering high-precision machining services. They specialize in CNC milling, turning, and providing ceramic machining services, alongside metal fabrication. Serving industries such as aerospace and oil & gas, the company emphasizes fast turnaround and emergency machining capabilities.
Based in San Jose, CA, ETD Precision Ceramics Corporation provides meticulous machining and grinding services for ceramics and quartz. They process high purity quartz and alumina, offering rapid delivery for intricate designs. ETD serves the semiconductor, electronics, and aerospace industries, prioritizing customer requests and industry relations.
Based in Wilmington, MA, Ferro-Ceramic Grinding Inc. provides specialized ceramic machining services. With over 55 years of experience, they precisely machine more than 15 different materials, including alumina, ensuring tight tolerances. The company operates under ISO 9001:2015 and AS9100D certified quality systems.
Ferrotec (USA) Corporation manufactures advanced material solutions, including high-purity advanced ceramics and machinable ceramic components. The company provides sophisticated components, systems, and manufacturing solutions, leveraging technologies such as ferrofluid, vacuum components, and thermoelectrics for diverse industries.
INSACO Inc. specializes in high-precision machining and polishing of technical ceramics, including alumina, sapphire, glass, and quartz. Based in Quakertown, PA, the company has provided expert services since 1947. They ensure optimal performance for components in challenging environments, offering extensive material and application guidance.
Based in Houston, TX, IntoCeramics is a ceramic manufacturing company and contract producer. They specialize in expert ceramic milling and grinding services, providing precise particle size reduction and high-quality component production. IntoCeramics offers comprehensive manufacturing solutions for industrial clients.
Based in Gilroy, CA, Island Ceramic Grinding is a machine shop specializing in precision grinding services for ceramic and magnetic materials. Serving the telecommunications industry, they offer surface grinding, lapping, centerless grinding, honing, and core drilling. They process ferrite, garnet, dielectric, load, and magnetic materials into shapes like discs and substrates.
Kadco Ceramics, based in Easton, PA, provides precision diamond machining services. Specializing in milling, grinding, ID slicing, and dicing, they process advanced ceramics and hard materials such as alumina, sapphire, zirconia, quartz, and piezoelectric substrates. The company offers engineering assistance and production solutions for industrial and R&D needs.
LSP Industrial Ceramics specializes in providing custom-designed industrial and technical ceramic components. They offer a diverse range of materials, including Alumina, Steatite, Silicon Nitride, Boron Nitride, and Zirconia, manufactured into various shapes like crucibles, tubes, bushings, and insulators. The company utilizes over 40 years of experience to meet specific client requirements.
Based in Austin, TX, LTD Material LLC specializes in fused quartz and ceramic fabrication, providing custom components from standard shapes to complex builds. They offer advanced processes, finishing, and cleanroom-ready packaging, along with in-house inspection and end-to-end quality control. The company is a certified OEM partner for semiconductor and advanced manufacturing industries.
Machined Ceramics Inc. is a precision ceramic machining company based in Bowling Green, KY. They specialize in machining high-tech ceramic materials such as aluminum oxide, silicon nitride, and silicon carbide. Capabilities include ultrasonic core drilling, grinding, milling, and threading, serving thermal, electrical, and semiconductor component applications.
Based in Hayward, CA, Microns Advanced Ceramics specializes in precision-machined ceramic components for demanding industrial applications. They provide high-performance parts, leveraging a U.S.-based engineering team and global manufacturing capabilities. The company works with materials like Alumina, Zirconia, and Silicon Carbide.
Mindrum Precision, located in Rancho Cucamonga, CA, specializes in advanced ceramic machining services. The company excels in Alumina machining, delivering tight-toleranced components in a post-fired state. Their core competency is precision machining for industrial applications, ensuring high accuracy and quality for complex ceramic parts.
Based in Woodland Park, CO, O'Keefe Ceramics specializes in precision fabrication and machining of advanced ceramic materials and composites. This custom ceramic manufacturer offers over 30 years of experience developing material solutions. They serve the aerospace, medical, energy, and semiconductor industries, ensuring uncompromised quality.
Ortech Ceramics provides custom precision ceramic machining and grinding services for tight tolerance components. Offering state-of-the-art manufacturing solutions using advanced ceramic materials, they support projects from prototype to high-volume production. Ortech serves diverse industries, including semiconductor, optimizing material and manufacturing methods.
PhotoMachining, Inc. based in Pelham, NH, offers high-precision laser micromachining and microfabrication contract services. They specialize in ceramic drilling and alumina processing for tough materials, from prototype to high-volume production. Serving medical, aerospace, and microelectronics, they achieve micron-scale tolerances with advanced laser systems.
Based in Baltimore, MD, Potomac Photonics is a microfabrication company specializing in precision laser and microfabrication solutions. They offer custom micro-manufacturing services, from rapid prototyping to full-scale production, with a focus on speed and quality. The company is equipped to machine various materials, including metals, polymers, and ceramics.
Based in Lake Forest, CA, Precision Ceramic specializes in advanced ceramic machining and custom parts manufacturing. They process technical ceramics like alumina, zirconia, silicon carbide, and sapphire. Core capabilities include precision grinding, lapping, polishing, cutting, and drilling, delivering high-tolerance components for diverse industrial applications.
Based in Melrose Park, IL, Precise Lapping & Grinding Corp. specializes in precision lapping, flat surface and double-disc grinding, deburring, and diamond polishing. They process various materials including metal alloys, plastics, ceramics, and composites. The company holds ISO 9001:2015 and AS9100D certifications for their services.
Based in Palmetto, FL, Precision Ceramics offers custom technical ceramic solutions and ultra-precise machining services. The company works with a broad range of advanced ceramic materials to produce custom components. They serve industries like aerospace, medical, semiconductor, and high-energy physics.
Based in Buena Park, CA, Quality Grinding Co. Inc. provides precision grinding and machining services, specializing in tight tolerance production. The company works with various materials, including ceramics, and serves the aerospace, medical, defense, and semiconductor industries.
Based in Newark, NY, Refractron Technologies Corp. designs and manufactures custom porous and dense advanced ceramics, including alumina, silicon carbide, and zirconia. They serve critical industrial applications such as semiconductor manufacturing, oil & gas, high-pressure pumps, and wire drawing, providing robust solutions for wear and corrosion resistance.
Based in Rochester, NY, RocCera, LLC specializes in advanced technical ceramic manufacturing and precision ceramic machining. They offer diamond machining for various ceramic materials, providing design, prototyping, and volume production. The company also machines polyurethane and plastics, backed by 35 years of multi-material fabrication experience.
San Diego Machine Group is a CNC machine shop based in San Marcos, CA, providing rapid prototyping and production machining services. They specialize in high-quality parts from various materials, including Macor (machinable glass-ceramic). Capabilities include deep hole drilling, custom thread forms, and thin-wall sections.
Based in Santa Clara, CA, San Jose Delta Associates LLC specializes in precision machining, grinding, and polishing services for technical ceramics. They work with a wide range of advanced materials, including Alumina, Aluminum Nitride, Beryllium Oxide, MACOR®, Sapphire, Silicon Nitride, Quartz, and Zirconia, serving various industrial applications.
Based in La Verne, CA, Sea-Lap, LLC offers ISO 9001:2015 certified precision lapping, honing, and polishing services. They specialize in processing materials like ceramics, carbides, steel, silicon, sapphire, and glass, achieving micron-level tolerances for diverse industrial applications requiring extreme flatness and smoothness.
PFC Precision Fabrication Corporation specializes in the high-precision machining and fabrication of advanced technical ceramics, quartz, and sapphire. The company processes fully-dense ceramics into complex features, offering grinding, lapping, and polishing services to meet extremely tight tolerances for various industrial applications.
Based in Los Angeles, CA, Specialty Surface Grinding Inc. provides precision grinding services for various materials, including ceramics. With over 50 years of experience, they specialize in surface, Blanchard, ID/OD, and rotary grinding, offering high-precision ceramic machining solutions for industrial applications.
Based in Millbury, MA, Stellar Industries Corp offers over three decades of specialized ceramic machining experience. The company focuses on high-thermal conductivity ceramics, ensuring precision and quality in its machining processes for industrial and commercial customers.
Millersville, MD-based Technology Assessment & Transfer, Inc. (TA&T) provides advanced ceramic material R&D, prototyping, and manufacturing services. Capabilities include additive manufacturing (3D printing) of alumina, zirconia, and silica, producing Spinel and optical ceramics. TA&T serves defense, biomedical, and industrial applications.
Based in Santa Ana, CA, TQ Abrasive Machining designs, machines, and manufactures advanced technical ceramic precision parts. They provide comprehensive ceramic machining services for applications requiring low weight, hardness, corrosion resistance, and high-temperature performance, catering to advanced high-tech industries.
U.S. Quality Ceramics Manufacturing (USQC) offers customized technical ceramic components for prototype and production. Founded in 2006, the company uses automated CNC machines for precision grinding, slicing, and dicing. USQC serves demanding industries like semiconductor, solar, laser, aerospace, military, and medical equipment from San Jose, CA.
Based in Shirley, MA, Valley Design provides high-precision CNC machining, lapping, and optical polishing for technical ceramics, quartz, glass, and sapphire. They utilize 4- and 5-axis machines for ultra-thin, ultra-flat, and optical finishes with tight tolerances. As an AS9100D/ISO 9001:2015 certified manufacturer, they support projects from R&D to full production.
Based in Orange, CA, Precision Grinding Co. specializes in precision grinding services, including i.d. o.d. universal, surface, rotary, spherical, form, and thread grinding. They also offer honing and CNC lathe turning. The company serves diverse industrial sectors, including aerospace, military, medical, and automotive.
PremaTech Advanced Ceramics machines technical ceramics for demanding applications across industries like Semiconductor, LED, Optics, Medical Devices, Aerospace, Defense, and R&D. They specialize in CVD SiC machining, grinding, lapping, and polishing for custom specifications.
Accumet provides advanced ceramic processing and precision laser machining services for demanding high-tech industries. Utilizing state-of-the-art facilities, they support complex projects in medical, aerospace, semiconductor, and defense. The company combines advanced technology and proven methods to deliver accurate, high-quality results.
Alumina Technologies Inc. manufactures precision engineered components from a range of advanced ceramics including high purity alumina, zirconia, and silicon carbide. Based in San Jose, CA, the company also provides metal alloys, ring blowers, vacuum pumps, and stainless steel mesh products, emphasizing quality and on-time delivery.
Based in Hartland, WI, Centex Machining Inc. provides custom precision CNC machining services, including milling, turning, grinding, and Wire EDM. They specialize in a diverse range of materials such as ceramics, aluminum, steel, and titanium, serving critical industries like aerospace, medical, and military with high-quality components.
Ceramics Grinding Co. specializes in precision machining and grinding services for hard-fired ceramic materials. Operating since 1962, the company provides technical ceramic machining and grinding to aerospace, defense systems, and university research departments across the U.S.
CoorsTek manufactures advanced ceramic materials like aluminas, carbides, nitrides, and zirconias. They provide extensive ceramic machining services, including precision CNC, grinding, lapping, polishing, ultrasonic, laser, and waterjet machining. CoorsTek delivers custom engineered ceramic solutions for diverse industrial applications from its US facilities.
Based in Fremont, CA, Ichor Systems is a manufacturing company specializing in ceramic machining services and the production of ceramic parts for demanding applications. They offer critical systems engineering and manufacturing, including integrated fluid delivery and semiconductor capital equipment solutions. Ichor Systems serves major original equipment manufacturers (OEMs) as a turn-key partner.
Based in Holbrook, MA, Mica-Tron Products Corp. specializes in precision machining of non-metallic materials, including machinable ceramics such as MACOR® and boron nitride. They produce intricate, close-tolerance parts for demanding industries like aerospace and defense, and also offer expert bonding services.
Modern Ceramics Manufacturing fabricates precision machined ceramic components for semiconductor, solar, medical, aerospace, and oil and gas industries. Based in San Jose, CA, their in-house machine shop also produces plastic and metal parts. The company offers clean room assembly and turn-key manufacturing solutions.
Based in Fairfax, VA, Questech Services Corporation is a laser job shop specializing in precision ceramic machining services. They offer ceramic substrate scribing, drilling, and dicing, along with laser silicon machining and resistor trimming. Questech serves industrial clients needing advanced laser processing for various applications.
SiNAPTIC, a contract manufacturer based in South Salt Lake City, UT, specializes in custom OEM additive manufacturing solutions. They offer rapid prototyping and serial production of high-performance silicon nitride components. Their expertise in composite 3D printing provides advanced ceramic materials for extreme environments like medical and aerospace.
Z I Machine Manufacturing, based in El Dorado Hills, CA, is a precision CNC machining company. They provide prototype and production services, including milling and turning, for various industries. The company specializes in machining diverse materials, explicitly offering ceramic machining capabilities alongside aluminum, stainless steel, and plastics.
Based in Florida, NY, Zircar Zirconia, Inc. manufactures advanced fibrous ceramics for high-temperature applications up to 2200°C. They produce ceramic textiles, boards, and furnace accessories using yttria stabilized zirconia, alumina, and custom chemistries. The company specializes in offering vacuum formed custom machined ceramic shapes for industrial requirements.
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Green machining refers to shaping ceramic material in its unfired, pre-sintered state, which is softer and more akin to chalk or clay. This process uses conventional machining techniques (milling, turning) and is generally faster and less expensive, ideal for roughing out complex geometries. Hard machining, or post-sintering machining, is performed on fully densified, fired ceramics, which are extremely hard and require specialized techniques like diamond grinding, ultrasonic machining, or laser ablation. This is necessary for achieving tight tolerances, fine surface finishes, and intricate features that can't withstand the shrinkage and distortion of the sintering process, especially for critical dimensions or sealing surfaces.
For ceramic components, precise specification of surface finish (e.g., Ra, Rz) and geometric dimensioning and tolerancing (GD&T) is paramount. Surface finishes should be defined with a specific Ra value (often in micro-inches or nanometers) and a clear measurement method. For GD&T, understand that achieving extremely tight tolerances (e.g., ±0.0001") on hard ceramics is significantly more challenging and costly than on metals. Collaborate with your supplier early, using their DFM insights. Focus critical tolerances on functional features and allow looser tolerances where possible, always considering the material's brittleness and susceptibility to micro-cracks during machining.
The primary failure modes during ceramic machining are micro-cracks, subsurface damage, and edge chipping, all stemming from the material's inherent brittleness and hardness. Mitigating these requires a combination of appropriate material selection, optimized machining parameters (feed rates, spindle speeds, coolant), and specialized tooling (e.g., fine-grit diamond wheels). For buyers, mitigation starts with clear communication of critical areas on the part that are sensitive to these defects. Additionally, selecting a supplier with robust in-process quality control, expertise in stress relief techniques, and advanced metrology for detecting subsurface damage (e.g., dye penetrant inspection) is crucial. Early DFM collaboration can also help design away sharp corners or thin sections prone to chipping.