Based in Davidson, NC, 3A Composites USA manufactures composite panels and materials. They specialize in products such as Alucobond® aluminum composite material and lightweight composites for diverse applications. The company serves markets including architecture, graphic display, corporate identity, and the industry & transport sectors.
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Composite Manufacturing Companies
Last updated: January 2026
This directory lists 97 composite manufacturing companies across the United States, from specialized aerospace and defense fabricators leveraging advanced autoclave curing to high-volume industrial manufacturers employing automated pultrusion and compression molding techniques.
Buyers typically approach composite manufacturers to solve critical engineering challenges related to weight reduction, increased specific strength, improved corrosion resistance, or enhanced thermal stability. Projects often demand specific fiber architectures, requiring expertise in complex ply layup sequences, precise fiber volume fraction control, and the ability to achieve stringent void content targets to meet performance specifications.
The range of composite suppliers is diverse. Some shops specialize in hand layup for prototypes or low-volume, high-performance components, often using prepreg materials and autoclave curing. Others are geared for higher volumes with processes like resin transfer molding (RTM) or vacuum assisted resin transfer molding (VARTM), while large-scale manufacturers might focus on automated processes like filament winding for pressure vessels or robotic spray-up for large structures.
To ensure a successful engagement, buyers should prepare detailed CAD models, material specifications (including fiber type, resin system, and cure schedule), and clear performance requirements such as modulus, tensile strength, and impact resistance. Suppliers, in turn, expect a thorough understanding of the part's intended application, environmental conditions, and any critical certifications required, often requesting specific quality assurance plans and non-destructive testing (NDT) protocols upfront.
Company Directory
97 companies nationwide
Based in San Diego, CA, 3DYN COMPOSITES LLC provides product development and consultancy services for industries requiring advanced composite solutions. They offer comprehensive capabilities including design, analysis, prototyping, and turn-key production services, addressing complex needs for high-performance composite parts and systems.
Based in Chino, California, Advanced Custom Manufacturing is a composite manufacturer. The company provides manufacturing services, including precision machining and assembly, for various industrial and commercial applications.
Based in Livermore, CA, ACP Composites offers advanced composite manufacturing services. They specialize in producing carbon fiber laminates, fiberglass sheets, veneers, and various prepregs. The company provides comprehensive pre and post-production capabilities, delivering high-quality composite solutions to industrial clients from its US facilities.
Associated Fiberglass Enterprises, founded in 1959, provides comprehensive composite manufacturing services. They offer a complete package from concept, drafting, pattern work, and mold making to fabrication, assembly, and delivery. Specializing in standard, custom, and specialty fiberglass products, they ensure customer-specific needs are met with quality and care.
Based in Huntington Beach, CA, Airtech 3D specializes in additive manufacturing of composite tooling. The company provides Print-Tech® full-service solutions, leveraging large-scale 3D printing with proprietary Dahltram® resins. Airtech 3D offers rapid, cost-effective tooling for advanced composite applications from its US manufacturing facilities in Springfield, TN.
Founded in 1989, American Fiberglass Corporation manufactures custom fiberglass products. They specialize in creating quality composite solutions for diverse industrial, commercial, and marine applications, emphasizing competitive pricing and tailored fabrication services. The company provides a range of fiberglass components and structures for various industries.
Apex Space & Defense Systems provides composite manufacturing services, leveraging over 40 years of experience across its business units. Specializing in innovative, lightweight, and durable solutions, the company offers filament winding and hand laid-up composites. They serve space, defense, and mission-critical markets from 300,000 square feet of facilities.
Based in White Salmon, WA, Applied Aerospace specializes in precision aerospace structures, offering advanced manufacturing solutions for space, air, and defense. They provide in-house capabilities including design, structural analysis, custom tooling, Nadcap-certified metal bond preparation, precision machining, and composite fabrication.
Atlas Fibre, a US-based manufacturer and fabricator of thermoset composite materials, offers extensive CNC milling, turning, and routing capabilities. They maintain North America's largest inventory of thermoset sheets, rods, and tubes, providing precision blanks and custom fabricated parts for various industrial clients and OEMs.
Based in Santa Ana, CA, Axiom Materials, Inc. manufactures advanced composite materials, including ceramic matrix composites (CMCs), prepregs, and honeycomb core. The company specializes in products like Nomex honeycomb for aerospace and phenolic prepregs for marine construction applications.
Based in San Clemente, CA, Composite Manufacturing Inc. provides custom carbon fiber and composite solutions. With in-house design, tooling, and manufacturing expertise, the company delivers advanced composite structures. It serves diverse sectors including aerospace, automotive, industrial, and medical applications, offering lightweight, high-strength materials.
Based in Spring, TX, Champion Fiberglass, Inc. operates North America's most advanced production facility for manufacturing fiberglass conduit. The company specializes in producing high-quality fiberglass composite products for diverse industrial and commercial applications, leveraging advanced production technologies and direct manufacturing services.
Based in Everman, TX, CMDT Manufacturing specializes in custom fiberglass manufacturing and mold making. The company provides comprehensive fiberglass fabrication solutions, including creating custom composite parts and molds. They also offer field service work to support various industrial and commercial client needs.
Composite Manufacturing, Inc. specializes in producing high-tech carbon fiber products for various industries. Their advanced composite components serve the medical, military, aerospace, marine, robotics, and industrial automation sectors, catering to demanding commercial applications with precision manufacturing capabilities.
Based in Seattle, WA, Common Fibers specializes in developing and manufacturing next-generation composite products. The company offers end-to-end services, from inception to production, focusing on design for manufacturability, quality, and repeatability. They have produced over 20,000 carbon fiber components across 400+ unique SKUs.
Based in Westport, MA, Composite Engineering, Inc. provides comprehensive design, engineering, and production services for the advanced composite industry. The company specializes in state-of-the-art carbon composite fabrication, crafting high-performance racing shells, kayaks, and custom carbon masts and spars. Led by naval architect Ted Van Dusen PhD.
Based in Warren, OR, Composites Universal Group is an advanced composites manufacturer with 25+ years experience. They provide engineering, prototyping, tooling, and production for aerospace-grade carbon fiber parts. Capabilities like autoclave/OOA, CNC, and finishing serve aerospace, automotive, and medical sectors.
Based in Columbus, OH, Core Molding Technologies specializes in molding large surface and structural components. They utilize thermoplastic and thermoset materials, offering composite conversion services for diverse markets. Core supports medium/heavy-duty truck, powersports, con-ag, building products, industrial, and utilities industries with their manufacturing expertise.
Based in Houston, TX, Creative Composites Group specializes in advancing infrastructure with Fiber Reinforced Polymer (FRP) composite solutions. They offer comprehensive services including design-build, manufacturing, engineering, and structural fabrication, providing highly-engineered composite systems for industrial and infrastructure applications.
CTL Aerospace is a NADCAP and AS9100D certified advanced composite facility with over 74 years of experience. As an OEM manufacturer and MRO provider, it specializes in producing fiber reinforced polymer structures and offers repair services. The company serves aerospace and industrial customers.
Current, Inc., based in East Haven, CT, manufactures and designs custom carbon fiber sheets, tubing, rods, and molded composite parts. They utilize phenolic, epoxy, and melamine resin systems for laminated composites. Serving diverse industries like defense, automotive, marine, electrical, and consumer goods, Current Inc. provides made-in-USA solutions.
Based in Sarasota, FL, Marine Concepts Design Concepts (DCMC) is a full-service provider specializing in composite manufacturing. The company offers comprehensive turnkey solutions, transforming client designs and ideas into finished products. DCMC serves industrial and commercial customers with a wide range of composite projects.
Based in Victoria, TX, Diamond Fiberglass is an ASME RTP-1 certified fabricator specializing in Fiberglass Reinforced Plastic (FRP) solutions. They design and fabricate fiberglass vessels, engineer-to-order piping systems, storage tanks, and process vessels. Serving power, chemical, food processing, and municipal industries, they provide end-to-end solutions for corrosive environments.
Based in Sacramento, CA, DT Fiberglass specializes in OEM fiberglass manufacturing. With over 35 years of experience, the company provides customized fiberglass solutions for diverse applications including aquaculture, agriculture, harvest hauling, communications, water filtration, transportation, and industrial sectors.
Edon Composites manufactures architectural composite products, including GFRC columns, FRP cornices, and PVC/FRP railings. Specializing in vertical construction, the company leverages a half-century of expertise to provide integrated solutions for commercial, institutional, and historic renovation projects such as universities and city halls.
Based in Wichita, KS, Fiber Dynamics Inc. provides design and manufacturing solutions for complex composite and carbon fiber parts. Specializing in advanced processes such as lost-core resin transfer molding (LCRTM), they offer comprehensive prototyping, production, and finishing. Services cater to the aerospace, aviation, and military sectors.
Fiberglass Technologies specializes in custom, high-quality fiberglass fabrication services. With over 40 years of experience, the company provides composite manufacturing solutions for a diverse client base including businesses, government buildings, retail stores, and educational institutions.
Gatelesis, based in Fort Lauderdale, FL, specializes in expert aircraft composites repair. Their MRO Composite Repair team provides comprehensive care and maintenance services for various aircraft components. They focus on delivering exceptional quality to ensure superior aircraft performance for clients in the aerospace industry.
Based in Richmond, CA, GC Rigging & Composites LLC specializes in custom composite manufacturing and rigging projects. They provide bespoke solutions, including custom carbon fiber components and boat hulls, for various customer applications.
Based in Bristol, RI, GMT Composites, Inc. specializes in custom carbon fiber composite engineering and manufacturing. Since 1984, they have provided components for marine, industrial, aerospace, defense, and scientific applications. The company offers manufacturing services from prototyping to production runs, with all products proudly made in the USA.
Grating Pacific, based in Tolleson, AZ, fabricates and supplies fiberglass grating, a composite material, alongside metal bar and aluminum grating. The company also offers woven and welded wire mesh, perforated, and expanded metal products. It operates five service centers across the Western U.S.
Based in Miamisburg, OH, Hawthorn Composites specializes in comprehensive composite engineering, design, and manufacturing. They produce complex geometry composite parts using dry fabrics, resin infusion, and novel methods like RTM, offering high-performance, cost-effective solutions. Their services cater to industries requiring components for commercial drones, ordinance, and UAVs.
Hexcel Corporation specializes in advanced composites technology, manufacturing lightweighting solutions for the aerospace and transportation industries. The company operates 19 manufacturing plants, providing materials and components. Based in Stamford, CT, Hexcel serves industrial and commercial B2B customers with its composite products.
Based in Woolley, WA, Janicki specializes in large-scale, high-precision manufacturing for aerospace, defense, space, and marine industries. The company utilizes custom-designed 5-axis machines with proprietary CNC software, offering capacities up to 100’ x 20’ x 8’. They build precision tools, parts, prototypes, and assemblies.
Based in Springfield, OH, JMS Composites manufactures quality custom composite products. The company offers engineering capabilities and mold manufacturing services, partnering with local universities for innovative concepts. They serve diverse sectors such as industrial, marine, medical, military, and transportation.
Based in Giddings, TX, LF Manufacturing specializes in fiberglass-reinforced polymer (FRP) structures. They produce tanks, vessels, pipe, and specialized components for oilfield, industrial, water/wastewater, agricultural, and OEM markets. The company operates multiple manufacturing plants across the United States.
Mar-Bal specializes in formulating, designing, and manufacturing custom thermoset composite components. With over 50 years of molding experience, they provide cost-effective solutions, materials engineering, and compounding. An in-house R&D facility develops and tests quality composite products for diverse applications, serving as a vertically integrated provider.
Based in Manitowoc, WI, MCM Composites specializes in thermoset plastic injection, compression, and transfer molding services. The company produces high-quality, complex parts for diverse industries like aerospace, medical, appliances, and food and beverage. Capabilities include precision molding, engineering, finishing, and assembly for custom composite components.
Based in Valencia, CA, MP Aero, LLC specializes in aerospace composite component manufacturing, fabricating parts from fiberglass, carbon fiber, and honeycomb. The company produces body components, housings, baffles, panels, and airfoils, alongside precision metal fabrication, custom tooling, and VIP aircraft interior support services.
Based in Fountain Valley, CA, MTC Corp specializes in advanced composite manufacturing and carbon fiber parts fabrication for the aerospace and defense industries. They offer prototyping, tooling, and production of complex assemblies for programs like the Sikorsky S-92 and F-22 fighter, holding AS9100D and ITAR certifications.
Norplex-Micarta produces thermoset composite prepregs, sheets, and shapes, specializing in the development, design, and manufacturing of engineered composite materials. They utilize various resin systems and reinforcements for demanding structural and electrical applications across high voltage, aerospace, and oil and gas industries.
Offshore Spars, based in Chesterfield, MI, specializes in composite manufacturing, creating high-quality carbon fiber spars and superyacht structures. Since 1976, they produce durable, high-performance marine components like masts, booms, and rigging. The company offers contract manufacturing and in-house services for diverse composite engineering.
Based in Osborne, KS, Osborne Industries specializes in liquid molding of thermoset plastics and composites. They utilize advanced processes such as Resin Transfer Molding (RTM) and Reaction Injection Molding (RIM). The company produces custom components for industrial and commercial clients, providing specialized manufacturing capabilities.
Based in Stanton, CA, Pacific Aerospace Corp specializes in manufacturing high-quality advanced composite components and assemblies for the aerospace industry. They offer comprehensive support including precision machining, tooling fabrication, and full assembly services. The company is certified for production of carbon fiber aerospace parts.
Based in Riverside, CA, Painted Rhino is a family-owned custom fiberglass and composite parts manufacturer. With nearly 30 years of experience, they provide services from prototype to volume production. Specializing in composite, vacuum forming, and urethane plastic fabrication, they serve diverse industries like automotive, aerospace, and entertainment.
Based in Compton, CA, Performance Composites is an ISO 9001:2015 certified fiberglass and composite materials manufacturer. They offer high-quality manufacturing services and expert design support for custom parts. Serving OEM and Department of Defense customers, they specialize in medical-grade composites and solutions for applications like defense drone cases.
PMI Composites, based in Ontario, CA, manufactures composite products, primarily utilizing fiberglass materials. Established in 1966, the company offers B2B fabrication services, leveraging extensive expertise in material properties and industrial safety to deliver solutions for diverse industrial composite builds.
Reinhold Industries manufactures composite and metallic structures for the aerospace, defense, aircraft, and industrial markets. The company specializes in composite and ablative components for space and military requirements, alongside cabin interior products such as seating, headrests, and footrests for commercial airlines.
Based in West Jordan, UT, Rock West Composites offers engineering, development, and manufacturing services for high-performance composite components. The company serves the aerospace, defense, space, and commercial aircraft sectors, producing items like radomes, SAS panels, and lunar mission components. They are a key supplier to Blue Origin.
Based in Fort Worth, TX, Sawyer Composite specializes in composite part and tooling fabrication. The company operates ISO9001/AS9100 and ITAR registered facilities, providing high-quality manufacturing solutions for various industries. They focus on precision production of composite components and specialized tools.
Based in Gulfport, MS, Seemann Composites, LLC is a leader in advanced composites manufacturing and state-of-the-art solutions. Founded on R&D, the company developed the patented SCRIMP resin infusion molding process. They are a critical supplier to the US Submarine Industrial Base, manufacturing products for the US Navy Submarine Fleet.
Based in Miamisburg, OH, Smart Tooling provides formable, reusable composite tooling solutions for complex composite parts. They offer total manufacturing solutions, including custom tooling design, fabrication of molds and Smart Tools, and initial composite part production for the aerospace & defense industry.
Swift Engineering, based in San Clemente, CA, is a full-service composite manufacturer. They specialize in producing complex composite structures and precision components. Capabilities span design, tooling, layup, assembly, paint, and testing, providing advanced engineering and rapid prototyping solutions for diverse industrial applications.
Symmetrix Composite Tooling Inc., located in Statesville, NC, specializes in manufacturing complex composite tooling. They provide services like close contour casting, precise plugs, patterns, production tooling, and direct machined or elevated temperature molds. Symmetrix supports composite part making for aerospace, marine, transportation, and wind energy.
Texas Almet produces and fabricates composite honeycomb components and aerospace core products. They specialize in structural honeycomb cores made from diverse materials including fiberglass, aluminum, and Nomex. Serving aerospace, military, and commercial industries, the company provides lightweight, high-strength, and thermally stable composite solutions.
Based in Triadelphia, WV, Touchstone Advanced Composites is an innovative supplier of composite tooling and parts manufacturing, primarily for the aerospace industry. The company offers a full suite of production and prototype composite tooling, bond fixtures, and precision machining services for various advanced materials.
Based in Ontario, CA, Upland Fab specializes in advanced CNC machining of high-performance plastic and composite materials. With over 50 years of experience, they fabricate complex, flight-critical parts for aerospace. Capabilities include 5-axis machining of carbon fiber, honeycomb, and foam core composites with tight tolerances.
Based in Columbus, OH, Wolf Composite Solutions specializes in carbon fiber production. The company provides comprehensive composite manufacturing services, including engineering and design, CNC solutions, and advanced autoclave processing. They offer production capabilities for various industrial and commercial applications.
Based in Addison, IL, Woodland Plastics Corporation specializes in custom thermoset plastic injection molding. ISO 9001:2015 certified, they offer prototype to high-volume manufacturing using materials like BMC, Phenolic, and glass fiber reinforced plastics. They serve automotive, electrical, industrial, energy, and EV sectors.
Based in Warner Springs, CA, Yankee Composites is an FAA Certified Repair Station specializing in the repair and maintenance of composite aircraft. They provide comprehensive composite repair services for gliders and airplanes, addressing structural integrity and aesthetic restoration with specialized expertise in advanced composite materials.
ARRIS Composites manufactures advanced 3D-aligned continuous fiber thermoplastic composite parts at scale using its patented Additive Molding technology. The company focuses on producing lighter, stronger, and more sustainable products for industries such as Consumer Electronics, Aerospace, Drone & Government, Industrial, and Automotive.
Based in Troy, MI, National Manufacturing Group is a multi-plant OEM supplier specializing in custom FRP and thermoformed plastic moldings. They utilize diverse methods including LRTM, RTM, and compression molding. Capabilities encompass prototyping, tooling, metal fabrication, class A paint, and full assembly for various industrial markets.
SHD Composites, based in Mooresville, NC, manufactures and develops advanced composite prepreg materials and technology. The company provides customer-focused prepreg solutions for diverse markets including motorsport, automotive, aerospace, and tooling applications.
TxV Aero Composites manufactures advanced thermoplastic composite (TPC) parts, specializing in PAEK composite-based components for commercial aerospace and eVTOL applications. The company provides custom PAEK laminates, finished composite parts, and overmolded hybrid parts from its automated facility, delivering aerospace-quality solutions.
AAA Fiberglass Services specializes in comprehensive fiberglass reinforced plastic (FRP) fabrication, tooling, and repair. Offering in-shop and field solutions, they produce custom industrial FRP structures, pipe fittings, and tanks. Serving industries like oil and gas and power plants, services also include installation, sandblasting, and painting.
Advanced Composite Products, Inc. is a manufacturing company with over 40 years of experience. They specialize in providing superior-quality custom composite parts. The company utilizes its expertise to deliver precise and durable solutions for various industrial applications.
Based in Salt Lake City, Advanced Composites Inc. manufactures composite structures. They produce carbon fiber tubing and various commercial carbon and fiberglass components, serving industries such as defense with their specialized manufacturing capabilities for advanced composites.
Aerospace Composites LLC manufactures airplane components and assemblies using composite, metal, and honeycomb materials. The company provides in-house composite autoclave, oven, and heated press services, alongside vacuum forming and tooling development. Specializing in advanced bonding techniques, they hold certifications from Tinker Air Force Base.
Based in Dallas, TX, Alpine Advanced Materials is a composite engineering firm specializing in the design and production of high-performance parts. They offer metallic to non-metallic design expertise and lightweighting solutions, serving industries such as defense, aerospace, space, and UAV.
Based in Lake Elsinore, CA, Applied Composites provides advanced composite manufacturing solutions for aerospace, defense, and space industries. They specialize in producing high-performance composite components for airframes, engines, defense systems, launch vehicles, and satellite structures, serving critical applications.
ARO Service, based in Anaheim, CA, is an FAA and EASA certified repair station for aircraft components. Specializing in composite and metallic bonding, they offer autoclave curing, damage repair, and aerostructure services for major aircraft manufacturers.
ATC Manufacturing, based in Post Falls, ID, specializes in advanced thermoplastic composite solutions for aerospace. They produce lightweight, durable primary and secondary aircraft structures, including flight control components. The company helps clients improve part performance, increase production rates, and achieve sustainability objectives.
Based in Moraine, OH, Building Composites LLC manufactures the HyperWall™ panel system, a complete exterior building skin solution. They provide structural composite panels, designed for architects, building owners, engineers, and contractors. The company offers stronger, lighter, and eco-friendly composite materials, aiming to accelerate construction projects.
Based in Duluth, MN, Clearwater Composites designs and manufactures carbon fiber composites and parts for customers nationwide. They offer innovative composite solutions and expert engineering, serving high-end robotics and precision industrial manufacturing industries. The company also provides in-stock carbon fiber tubes made in their U.S. facility.
Based in Wausau, WI, Composite Envisions LLC provides advanced composite manufacturing services, including CNC machining. They also offer a range of composite materials such as stocked prepreg fabrics, resin systems, and infusion epoxy. The company serves B2B industrial clients requiring specialized composite production and material supply.
Based in North East, MD, Composites USA, Inc. manufactures tailored, corrosion-resistant composite equipment. They specialize in fiberglass tanks, vessels, ducts, pipes, and scrubbers using FRP and dual laminates. Their FM Approved and UL Certified products serve diverse industrial applications, providing exceptional value and peace of mind.
DragonPlate specializes in the manufacturing of high-performance carbon fiber-reinforced composites. The company produces custom carbon fiber shapes and a range of products, including composite tubes, catering to various industry applications.
Based in Cypress, TX, DRAKE Thermoset Composites manufactures and supplies advanced thermoset composite and ultra high-performance polymer stock shapes. The company offers precision plastic machining and injection molding services, producing rod, plate, and tube from materials like Torlon PAI, PEEK, and Ryton PPS for various applications.
Based in Sun Valley, CA, D & G Fiberglass specializes in custom fiberglass fabrication services. The company provides composite solutions for residential, commercial, and industrial clients, offering tailored fabrication to meet specific project requirements and diverse application needs.
Based in Smithfield, RI, Fiberglass Fabricators Inc. specializes in manufacturing a wide variety of FRP industrial and municipal products. Leveraging over 60 years of experience, they combine pultruded structural components with open-molding flexibility to produce high-quality composite solutions for diverse markets.
Finishline Advanced Composites, LLC, based in Fairfield, CA, specializes in carbon fiber and composite manufacturing. They provide comprehensive services from design, development, and prototyping to small or large-scale production projects. Serving industries like aerospace, military, medical, and motorsports, they also offer expert composite repair services for diverse applications.
Based in Houston, TX, General Plastics & Composites, L.P. (GP&C) specializes in the engineering and manufacturing of advanced composite products. They provide precision-engineered components and turnkey solutions for industries requiring strength, reliability, and innovation from concept to completion.
Based in Granbury, TX, Harris Composites, Inc. specializes in aerospace composite bonding, machining, and tooling. They manufacture to customer specifications and provide FAA-compliant repairs for diverse aircraft components, including interior/exterior panels, ducts, and radomes. The company also performs sub-assembly and applies various specialized coatings.
Light Composites is a San Diego based carbon composites manufacturer specializing in advanced processes for the medical device and aerospace industries. They offer mold making, pre-preg compression and bladder molding, product development, rapid prototyping, and CAD/CAM, CAE and FEA services. The company is registered AS9100:D and ISO9001:2015 compliant.
Based in Dana Point, CA, AMComposites provides expert marine boat yard services. Specializing in fiberglass fabrication, they build and modify a range of composite parts, offering high-quality structural and cosmetic repairs for vessels. Additional services include gel coat and topside painting, bottom paint, and hull out capabilities.
Master Mold LLC is an OEM supplier specializing in custom molded fiberglass reinforced composites. Their services include compression/sheet molding, robotic machining, bonding, painting, and parts assembly. With multiple plants and molding capabilities up to 4,000 tons, they serve premier brands across diverse industries.
Morrison Marine specializes in marine fiberglass and gelcoat repair, offering comprehensive boat restoration services. The company also provides custom composite manufacturing, including industrial and marine composites, alongside general fiberglass repairs. Their experienced craftsmen address minor scratches to major structural damage.
Protech Composites, based in Vancouver, WA, manufactures custom carbon fiber parts for diverse industries. They use a proprietary process to produce zero porosity, cosmetically flawless components, offering tailored, machined, and molded solutions. The company provides services from prototype to mass production, all made in the USA.
Based in West Sacramento, CA, Rocket Composites Inc. specializes in custom carbon fiber manufacturing. They provide expert concept, design, development, and production of carbon fiber components. The company serves a diverse range of industries including automotive, aerospace, medical, and recreational sectors.
Spencer Composites Corporation, based in Sacramento, CA, fabricates composite products and components. They offer thermoset and thermoplastic processes, including thick-wall composite processing, filament winding, pultrusion, RTM, VARTM, and press molding. SCC is ASME certified, serving aerospace, oil & gas, medical, and industrial clients.
Based in Waco, TX, Waco Boom manufactures fiberglass booms for aerial devices such as bucket trucks and cranes. Specializing in filament wound composite booms, the company provides custom-designed solutions known for dependability, strength, and non-conductivity. They serve various industrial and utility applications.
Based in Boerne, TX, Albany Engineered Composites designs and manufactures advanced materials-based engineered components. The company supports demanding aerospace applications for both commercial and military platforms, utilizing specialized processing and automation capabilities to deliver custom composite solutions.
Based in Ponte Vedra Beach, FL, BioComposites Group develops and manufactures sustainable composite materials and products. The company specializes in innovative construction, erosion control, and vegetation solutions, utilizing hemp-based fibers. They offer custom manufacturing services, providing eco-friendly composite solutions for B2B industrial applications.
Custom Fiberglass Works, Inc. provides comprehensive custom fiberglass manufacturing services. With over 30 years of experience, the company specializes in producing high-quality composite solutions for diverse applications. They emphasize reasonable rates and offer free quotes, serving commercial and industrial clients across the United States.
Qarbon Aerospace manufactures cutting-edge composite components and assemblies, offering turnkey solutions for structural and engine needs. The company serves commercial and military aircraft customers, specializing in complex challenges for both fixed-wing and rotary applications with over a century of experience in aerospace innovation.
Toray Advanced Composites manufactures advanced carbon fiber and thermoplastic composite materials. They produce thermoplastic (Cetex®) composites, thermoset prepregs, and epoxy systems, delivering innovative technologies and materials for various industrial challenges.
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How to Choose a Company
- Verify they have proven expertise in your required resin system (e.g., epoxy, phenolic, cyanate ester) and fiber type (e.g., carbon, glass, aramid), demonstrating control over specific cure cycles and post-cure requirements for optimal material properties.
- For aerospace, medical, or defense applications, insist on AS9100 and Nadcap accreditation for special processes like non-destructive testing (NDT), composite layup, and autoclave curing, as these certifications are non-negotiable for compliance and quality.
- Assess their tooling strategy and in-house capabilities for mold fabrication, repair, and ongoing maintenance. Inadequate tooling, or a lack of understanding of tool wear specific to composite processes like RTM or compression molding, is a common root cause for production delays and part variations.
- Examine their quality control protocols beyond standard dimensional checks, specifically for internal laminate quality parameters such as fiber volume fraction, void content, and interlaminar shear strength, which are critical for structural integrity but often overlooked by less experienced buyers.
- Red Flag Warning: Be extremely cautious of suppliers offering significantly lower tooling costs without a detailed design for manufacturability (DFM) review specific to composites. This often signals a lack of understanding of proper fiber orientation, ply drop-off strategies, or the complexities of demolding, leading to excessive material waste, manual rework, or even mold damage down the line.
Supplier Types at a Glance
| Type | Best For | Typical MOQ |
|---|---|---|
| Specialty Aerospace & Defense Fabricator | Highly regulated industries requiring stringent material traceability, Nadcap-accredited processes, and complex geometries for high-performance applications (e.g., aircraft components, missile structures). | Low to medium volume (1-100s parts), often driven by specific program needs. |
| Industrial Structural Composites Manufacturer | Large-scale projects prioritizing durability, corrosion resistance, and specific strength for infrastructure, marine, or heavy industrial equipment (e.g., wind turbine blades, chemical tanks, bridge decks). | Medium to high volume (100s-1000s parts), often utilizing automated processes like pultrusion or filament winding. |
| Custom Prototype & Low-Volume Shop | Proof-of-concept, R&D projects, or bespoke components where design flexibility and rapid iteration are key, often with manual layup or smaller-scale RTM/VARTM capabilities. | Very low to low volume (1-50 parts), focusing on unique, intricate designs rather than mass production. |
| Automotive High-Volume Composites | Lightweighting initiatives in the automotive sector, requiring fast cycle times, consistent quality, and cost-efficiency for structural or aesthetic parts (e.g., body panels, chassis components). | High volume (1,000s to 100,000s+ parts), leveraging compression molding, HP-RTM, or automated preforming techniques. |
Frequently Asked Questions
What's the difference between open molding (e.g., hand layup, spray-up) and closed molding (e.g., RTM, vacuum infusion) for composite parts, and which process type should I prioritize?
Open molding processes are typically lower cost for tooling and offer flexibility for large, complex parts or prototypes. However, they result in inconsistent surface finish, higher VOC emissions, and less control over fiber volume fraction and void content. Closed molding processes, while requiring higher initial tooling investment, yield parts with superior surface finish on both sides, tighter dimensional tolerances, reduced emissions, and better laminate quality control, making them ideal for production volumes or performance-critical applications. Your choice depends heavily on volume, performance requirements, and budget for initial tooling.
How important is a supplier's experience with specific resin systems (e.g., thermosets vs. thermoplastics) and fiber types (e.g., carbon vs. glass) for my project?
It's paramount. The choice of resin and fiber defines the composite's mechanical, thermal, and chemical properties. A supplier experienced with your specific material combination understands the nuances of tack, drape, cure kinetics, and compatibility with various manufacturing processes. For instance, processing high-temperature thermoplastic composites requires specialized heating and consolidation equipment that thermoset shops won't possess, impacting everything from part integrity to cost efficiency.
Beyond dimensional inspection, what specific non-destructive testing (NDT) and quality documentation should I expect from a composite manufacturer?
For critical composite parts, robust NDT is essential. Expect methods like ultrasonic inspection (pulse-echo or through-transmission) to detect delaminations, voids, and inclusions. Thermography can identify subsurface defects or variations in cure. X-ray radiography can reveal fiber orientation anomalies or foreign object debris (FOD). Quality documentation should include material traceability (certificate of conformance for prepregs, resins, fibers), process control records (cure cycles, vacuum levels, pressure logs), first article inspection (FAI) reports, and documented NDT results, all crucial for full lifecycle traceability and performance validation.
When should I consider a composite supplier that offers Design for Manufacturability (DFM) specific to composites?
You should prioritize DFM expertise whenever you're developing a new composite part, especially if it's performance-critical, involves complex geometries, or targets high production volumes. A DFM-savvy supplier will optimize ply layup sequences, fiber orientation, core material integration, and tooling design to minimize material waste, reduce manufacturing time, improve structural integrity, and prevent common composite defects like wrinkles, voids, or delaminations, saving significant costs and time during scale-up and production.