Sourcing a Glass Fiber Reinforced Polymer (GFRP) manufacturer isn't just about finding someone who can quote a price — it's about finding a supplier whose product line, certifications, and production scale actually match what your project needs. Pick the wrong one, and you're looking at a raw-material supplier when you needed a finished part, or a stock-shape catalog when your project calls for custom design-build engineering.
That's the problem this list solves. Below are 10 GFRP manufacturers active in the global supply chain, each broken down by headquarters, core strength, and the specific type of buyer they're the best fit for — so instead of spending weeks cross-checking capabilities one supplier at a time, you can shortlist the right one in minutes.
List of Top 10 GFRP Manufacturers
| # | Company | Headquarters | Core Advantage |
|---|---|---|---|
| 1 | Susdura | Ningbo, Zhejiang, China | Full-chain FRP capability from design and material selection through in-house tooling, testing and production |
| 2 | China Jushi Co., Ltd. (Jushi Group) | Tongxiang, Zhejiang, China | World-scale glass fiber reinforcement supply with export experience to 100+ countries |
| 3 | Strongwell Corporation | Bristol, Virginia, USA | World's largest pultruder, with published engineering data sheets that simplify specification |
| 4 | Gurit Holding AG | Wattwil, Switzerland | Structural composite engineering support alongside pultruded glass fiber profiles |
| 5 | Mitsubishi Chemical Group Corporation | Chiyoda, Tokyo, Japan | Glass mat thermoplastic sheet/panel systems engineered to replace metal in structural parts |
| 6 | Dextra Group | Bangkok, Thailand | Multi-region ISO-certified GFRP rebar production with full product traceability |
| 7 | Creative Composites Group | Alum Bank, Pennsylvania, USA | In-house design-build capability for custom, project-specific GFRP structures |
| 8 | Advanced Composites Inc. | Salt Lake City, Utah, USA | AS9100D/ISO-certified custom GFRP part engineering from design through production |
| 9 | IKK Mateenbar | Al Khobar, Saudi Arabia | Locally manufactured GFRP rebar for the Middle East, backed by New Zealand pultrusion engineering |
| 10 | Owens Corning | Toledo, Ohio, USA | World's largest fiberglass composites manufacturer, spanning nearly every GFRP process route |
1. Susdura
Established: August 1990, by founder Mr. Dibo Xu
Headquarters: No. 150, Kesheng Road, Jishi Gang Town, Haishu District, Ningbo City, Zhejiang Province, China
Main Products: FRP pultruded structural profiles, electrical insulation components, power and telecom enclosures, and custom FRP/OEM composite parts, produced from SMC and BMC thermoset molding compounds and glass, carbon, or hybrid fiber reinforcement systems.
Company Overview: SUSDURA is an advanced composites company with more than 30 years of experience in the research, development, and application of FRP composite materials, tracing back to its founding work developing composite enclosures for battery storage systems used in wind- and solar-powered pipeline leak sensors. The company entered the broader Chinese market in 2012 and now runs compression molding capacity from 63T to 4,500T alongside one of Asia's largest pultrusion operations, supported by six thermoset resin systems (unsaturated and saturated polyester, vinyl ester, phenolic, polyurethane, and epoxy) and glass, carbon, and hybrid fiber reinforcements.
Position: Rather than selling compound or profile alone, SUSDURA works with customers through a full product development chain - application and product design, material and process selection, in-house mold/tooling design, testing and acceptance, and PFMEA/PPAP-based production quality control - serving sectors including electrical/electronics, energy storage, HVAC, infrastructure and construction, renewable energy, telecommunications, transportation, and power transmission.
Reasons for selection: Buyers who want to bring an application requirement rather than a finished material spec will benefit most from SUSDURA's integrated design-to-production model, since the company designs and builds its own compression molds and pultrusion tooling in-house rather than outsourcing them. Because SUSDURA formulates SMC/BMC compounds and pultruded profiles to order, ask early about which resin/fiber system (e.g., vinyl ester for corrosion resistance, phenolic for high-temperature electrical insulation) best fits your performance and certification requirements.
2. China Jushi Co., Ltd. (Jushi Group)
Established: 1993 (predecessor operations trace back to 1969; incorporated as Tongxiang Jushi Glass Fiber Co., Ltd. on March 18, 1993)
Headquarters: 318 Fenghuanghu Avenue, Wutong District, Tongxiang City, Zhejiang Province, 314500, China
Main Products: E-glass direct-melt roving, chopped strand and chopped strand mat, woven roving fabric, electronic-grade glass fiber cloth, high-modulus (E8) glass fiber, and glass fiber reinforcements used to manufacture GFRP composites for construction, wind energy, and transportation.
Company Overview: China Jushi, the core fiberglass platform of China National Building Material Group (CNBM), is one of the world's largest and most technologically advanced fiberglass manufacturers, with a total production capacity exceeding 2 million tons across production bases in Tongxiang (Zhejiang), Jiujiang (Jiangxi), Chengdu (Sichuan), Huai'an (Jiangsu), Suez (Egypt), and South Carolina (USA).
Position: A primary upstream raw glass fiber reinforcement source (roving, mat, fabric) for GFRP fabricators, pultruders, and composite molders worldwide, with over 100 product families, near a thousand specifications, and export experience to more than 100 countries.
Reasons for selection: Jushi is a raw-material supplier, not a finished-part GFRP manufacturer — ideal for buyers who need bulk fiber reinforcement for their own pultrusion, molding, or laminating operations. Confirm minimum order quantities and container-load logistics if sourcing internationally, and request test reports referencing the specific ASTM/ISO standards your application requires.
3. Strongwell Corporation
Established: 1956 (pultrusion process began at the company's Bristol plant, which was established in 1924)
Headquarters: 400 Commonwealth Avenue, Bristol, Virginia 24201, USA
Main Products: EXTREN pultruded structural shapes (beams, channels, angles), fiberglass grating, SAFRAIL handrail and safety systems, ladder rail, structural building panels, decking systems, and utility/light poles.
Company Overview: Strongwell is widely recognized as the world's largest pultruder of fiber reinforced polymer composites, operating four manufacturing locations with more than 65 pultrusion machines and over 730,000 square feet of production space, backed by a 10,000-square-foot in-house testing laboratory with ASTM test capabilities.
Position: A long-standing benchmark supplier for engineers specifying GFRP as a steel or aluminum alternative in corrosive, electrically sensitive, or weight-critical environments, serving Fortune 500 industrial clients, architecture and engineering firms, and distributors globally.
Reasons for selection: Because Strongwell manufactures standardized structural shapes at scale, buyers benefit from published engineering data sheets and design guides that simplify specification. For non-standard geometries, ask about custom pultrusion capabilities versus off-the-shelf shape availability, as lead times can differ significantly.
4. Gurit Holding AG
Established: 1835 (as a Swiss textile finishing business; entered composite materials manufacturing in 1929, with advanced composites becoming its sole focus by 2006)
Headquarters: Ebnaterstrasse 79, 9630 Wattwil, Switzerland
Main Products: Pultruded glass fiber structural profiles, glass fiber prepregs, and glass fiber-reinforced laminating and infusion resin systems used in wind, marine, and industrial composite structures.
Company Overview: Gurit is a Swiss-listed (SIX: GURN) advanced composites group with roughly 29 manufacturing, engineering, and sales sites spanning the Americas, Europe, the Middle East, Africa, Asia, and Oceania.
Position: Within its broader composites portfolio, Gurit supplies pultruded glass fiber profiles validated through rigorous mechanical testing, primarily for wind turbine blade structures and industrial applications that demand dimensional accuracy and long-term fatigue performance, backed by structural composite engineering support.
Reasons for selection: Gurit's glass fiber pultrusion line is one product segment within a much larger, diversified composites business (which also includes core materials, adhesives, and carbon fiber prepregs) — when requesting quotes, specify clearly that you need glass fiber (not carbon fiber) profiles or prepregs to route your inquiry to the correct product team.
5. Mitsubishi Chemical Group Corporation
Established: 1933 (predecessor Mitsubishi Chemical operations; current holding structure formed October 2005)
Headquarters: Marunouchi, Chiyoda-ku, Tokyo, Japan
Main Products: GMT and GMTex glass mat thermoplastic panels, SymaLITE lightweight glass fiber composite panels, and MultiQ glass-fiber reinforced thermoplastic sheet materials.
Company Overview: Mitsubishi Chemical Group is a diversified Japanese chemicals conglomerate; its Advanced Materials division (operating internationally as Mitsubishi Chemical Advanced Materials) is a global leader in semi-finished glass fiber-reinforced thermoplastic composites.
Position: These materials — supplied as moldable sheets and panels — are used to replace metal in structural and semi-structural automotive, industrial, and consumer applications, with the division supporting customers from material selection through part design, feasibility studies, and manufacturing process guidance.
Reasons for selection: Because Mitsubishi Chemical is a large multi-business conglomerate, buyers should engage directly through the Advanced Materials / composites division rather than the group's general contact channels to reach engineers familiar with GMT/GMTex/SymaLITE product lines and application engineering support.
6. Dextra Group
Established: 1983
Headquarters: 247 Lumpini II Building, 5th Floor, Sarasin Road, Lumpini, Pathumwan, Bangkok 10330, Thailand
Main Products: Durabar and ASTEC GFRP rebar for concrete reinforcement, supplied as a corrosion-free, non-metallic substitute for steel rebar in new construction and structural strengthening projects.
Company Overview: Dextra Group is a privately-owned, French-founded engineering and manufacturing group with three decades of experience supplying construction hardware across more than 55 countries, operating ISO-certified GFRP rebar plants in Thailand, China, and India.
Position: Dextra positions its GFRP rebar around measurable procurement benefits: 6–8 times less material required for equivalent strength versus steel, reduced installation labor, and full product traceability through individually marked bars.
Reasons for selection: Ask Dextra for project traceability documentation and third-party test certificates up front, since large infrastructure buyers often need to demonstrate compliance with regional design codes (e.g., ACI, CSA, or local transportation department standards) before GFRP rebar can be approved for a project.
7. Creative Composites Group
Established: 1973 (as Creative Pultrusions, Inc., now the pultrusion division of Creative Composites Group)
Headquarters: 214 Industrial Lane, Alum Bank, Pennsylvania 15521, USA
Main Products: StormStrong utility and light poles, TuffSpan roofing/siding and structural panels, custom pultruded GFRP structural shapes, bridge decking, gratings, and cable management systems.
Company Overview: Creative Composites Group (CCG) is a US-based design-build and manufacturing group formed by combining several established composite fabricators — including Creative Pultrusions, Composite Advantage, Kenway Composites, and United Fiberglass — under one organization, and is a subsidiary of UK-listed infrastructure group Hill & Smith.
Position: This structure gives CCG both deep pultrusion manufacturing expertise and in-house structural engineering and fabrication capability, so buyers can move from concept to installed structure (bridges, power poles, water/wastewater components) with a single point of contact.
Reasons for selection: CCG's strength is custom and project-specific GFRP structures rather than off-the-shelf catalog parts — buyers with large infrastructure or utility projects should engage their engineering services team early in project design to take full advantage of CCG's design-build capabilities.
8. Advanced Composites Inc.
Established: 1991
Headquarters: 3030 West Directors Row, Salt Lake City, Utah 84104, USA
Main Products: Filament-wound and hand lay-up glass fiber-reinforced plastic (GRP) composite structures and tubing, including E-glass and S-glass reinforced components for defense, energy, and utility applications.
Company Overview: Advanced Composites Inc. (ACI) is an AS9100D and ISO 9001:2015-certified composite manufacturer operating a 50,000-square-foot facility, with core capabilities in filament winding, compression molding, and precision lay-up.
Position: While best known for defense and aerospace composite structures, ACI manufactures GFRP components as a distinct product line — E-glass for cost-effective, electrically insulative parts, and S-glass for higher-strength, aerospace-grade applications — positioning itself as a manufacturing partner for custom parts rather than a stock-shape supplier.
Reasons for selection: ACI is best suited to buyers who need a custom or low-to-mid-volume GFRP part engineered from scratch — bring drawings or performance requirements early, since the company's value is in its design-through-production engineering support.
9. IKK Mateenbar
Established: 2020 (joint venture formed under a 2019 MOU; production facility inaugurated June 2021)
Headquarters: PO Box 2145, Al Khobar 31952, Kingdom of Saudi Arabia
Main Products: Mateenbar GFRP rebar and Mateendowel GFRP dowels for concrete reinforcement, manufactured for corrosion-resistant infrastructure and building construction.
Company Overview: IKK Mateenbar is a joint venture between Pultron Composites (Gisborne, New Zealand) — the original developer of Mateenbar GFRP rebar technology — and the Isam Khairy Kabbani Group (IKK), established to build the first GFRP rebar production facility in Saudi Arabia.
Position: Backed by a memorandum of understanding with Saudi Aramco and audited approval from Saudi Aramco and international transportation agencies (including the Ontario Ministry of Transportation), the venture supplies GFRP rebar for regional infrastructure projects across Saudi Arabia, the wider Middle East, and North Africa.
Reasons for selection: Because IKK Mateenbar's approvals reference specific transportation and industry bodies (e.g., Saudi Aramco, Ontario MTO), confirm which regional codes and certifications apply to your project before ordering, and ask about regional stocking versus made-to-order lead times if you are outside Saudi Arabia.
10. Owens Corning
Established: 1938 (incorporated October 31, 1938, as a joint venture of Owens-Illinois and Corning Glass Works)
Headquarters: One Owens Corning Parkway, Toledo, Ohio 43659, USA
Main Products: Single-end and multi-end glass fiber roving, chopped strand and chopped strand mat, continuous filament mat, woven roving and woven roving/CSM combination fabrics, technical fabrics (including ULTRAPIPE non-crimp fabrics for pipe rehabilitation), and CFPR (continuous fiber reinforced polymer) bars, tapes, and laminates.
Company Overview: Owens Corning is a NYSE-listed (NYSE: OC) global materials company and the world's largest manufacturer of fiberglass composites, with 2024 revenue of roughly $11 billion and operations spanning more than 30 countries.
Position: Its Composites division supplies the raw glass fiber reinforcements that go into GFRP end-products across nearly every process route — pultrusion, filament winding, resin infusion, hand lay-up, sheet molding compound (SMC), and spray-up — serving wind energy, construction and infrastructure, transportation, marine, and consumer goods markets. Owens Corning has also pushed into circularity with products like SUSTAINA LOOP, made from reclaimed manufacturing scrap and end-of-life fiberglass.
Reasons for selection: Like Jushi, Owens Corning is primarily a raw glass fiber reinforcement supplier rather than a finished-part manufacturer — it's the right fit for buyers who are pultruding, molding, or laminating their own GFRP products and need a consistent, globally available fiber source. For infrastructure or civil projects, ask specifically about their CFPR bar/rebar and ULTRAPIPE product lines, which are closer to finished GFRP components than the base reinforcement materials.
Frequently Asked Questions
What is Glass Fiber Reinforced Polymer (GFRP) used for?
GFRP is a composite material used for structural shapes, rebar, gratings, panels, and molded parts that need corrosion resistance, electrical insulation, or a lightweight alternative to steel or aluminum — common applications include construction and infrastructure, wind energy, transportation, and industrial/utility structures.
How do I choose the right GFRP manufacturer for my project?
Match the supplier's core business to your need: if you're pultruding, molding, or laminating your own parts, a raw glass fiber reinforcement supplier is the right fit; if you need finished structural shapes or rebar, look for a pultruder or rebar manufacturer with published engineering data and relevant regional certifications; if your project needs a custom, one-off structure, a design-build composite fabricator is usually the better match.
What's the difference between a raw fiber supplier and a finished GFRP part manufacturer?
Raw fiber suppliers produce roving, mat, and fabric reinforcement that other companies use to make GFRP parts through pultrusion, molding, or laminating. Finished-part manufacturers take that reinforcement (often produced in-house) and turn it into structural shapes, rebar, panels, or custom components ready to install.
Can a GFRP manufacturer handle both material supply and structural design?
Some can — vertically integrated, design-build suppliers offer engineering support alongside manufacturing, helping with structural design, custom fabrication, and installation guidance under one roof. Others focus purely on material or standard shape production and leave engineering to your own team or a separate firm.
Do GFRP rebar suppliers offer support with code compliance and certification?
Not all of them equally. Suppliers active in large infrastructure markets typically provide third-party test certificates, project traceability documentation, and references to the specific regional design codes (such as ACI, CSA, or local transportation department standards) your project needs to meet.
What certifications should I look for when sourcing GFRP for infrastructure or industrial use?
For infrastructure and rebar applications, look for ISO-certified manufacturing and documentation aligned with the design codes your jurisdiction or transportation authority requires. For industrial or defense-adjacent structural parts, prioritize suppliers with recognized quality certifications (such as AS9100D or ISO 9001) and traceable test reports referencing ASTM/ISO standards.
Ready to Find Your GFRP Manufacturing Partner?
Choosing the wrong GFRP supplier doesn't just cost you a bad batch — it costs you weeks of re-qualification, missed certifications, and a project timeline that quietly slips. The 10 manufacturers above give you a solid starting point, but every application is different, and the right fit depends on details a comparison table can't fully capture: your volume, your certification requirements, your timeline.
If you'd rather skip the back-and-forth of contacting suppliers one by one, our team can help you match your project to the right GFRP product and production partner — whether that means raw fiber reinforcement, standard structural shapes, GFRP rebar, or a fully custom design-build structure. Get in touch, and we'll help you move from spec to sourced part faster.
