Company lists · Data refreshed September 2026
Top 25 Fiberglass material manufacturers worldwide
RevenueBase identified 1,024 fiberglass material manufacturers worldwide as of September 2026 and tracks 12,512 professional contacts across them, including 2,376 with verified work emails. The United States is the largest market and Ahmedabad the largest hub.
This list covers fiberglass material manufacturers worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026. Country and city lists for fiberglass material manufacturers follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest fiberglass material manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 571 contacts → | ||||
Indirect evidence “SPI is a global leader in the Distribution and Specialty Fabrication of insulation products for Thermal, Acoustic, Fire Protection and Refractory applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 488 contacts → | ||||
Indirect evidence “Distribution International (DI) a leading distributor of thermal and acoustical insulation and related supplies for maintenance and repair operations in the United States.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 444 contacts → | ||||
Indirect evidence “Since 1995, Indore has been a company driven by innovation at its core.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 441 contacts → | ||||
Partial evidence “Core Molding Technologies is a leading engineered materials company specializing in molded structural products, principally in building products, utilities, transportation and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 260 contacts → | ||||
Indirect evidence “About 3B-the fibreglass company 3B-the fibreglass company is a leading developer and supplier of fibreglass products and technologies for the reinforcement of thermoplastic and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 243 contacts → | ||||
Strong evidence “Jushi Group is one of the world’s largest fiberglass manufacturers With many production bases in Tongxiang, Zhejiang, Jiujiang, Jiangxi, Chengdu, Sichuan, Huaian, Jiangsu, Suez…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 215 contacts → | ||||
Indirect evidence “Strongwell is the world's leading pultruder of fiber reinforced (FRP) structural components.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 211 contacts → | ||||
Partial evidence “With approximately EUR 340 million annual revenue, the family-owned company SAERTEX® is the global market leader in the manufacture of multiaxial fabrics (non-crimp fabrics) and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 195 contacts → | ||||
Strong evidence “With six decades of experience in the Fiberglass Reinforced Plastics industry, Fibergrate Composite Structures manufactures and sells the most complete line of high-performance…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 192 contacts → | ||||
Indirect evidence “Aeron Composite Limited is a part of 'A GROUP''A GROUP' is in business of Ceramic refractories, FRP/ GRP Composites, Ceramic Tiles, Waterjet & Laser Cutting machine, Paints and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 173 contacts → | ||||
Strong evidence “60 years’ experience in fiberglass manufacturing has made us one of the leading manufacturers of fiberglass-based products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 158 contacts → | ||||
Partial evidence “ORI Group has been known as one of the leading FRP manufacturers in the industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 148 contacts → | ||||
Partial evidence “Established in and headquartered in Charlotte, N.C, Greenfiber is the largest manufacturer of cellulose insulation and fire and sound products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 142 contacts → | ||||
Indirect evidence “Innovative Technologies, Quality Manufacturing CTA Acoustics, Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 112 contacts → | ||||
Indirect evidence “GlassRock Insulation Company is a member of Citadel Capital, inaugurated in Egypt since 2008 and located in the Sadat Free Zone Area, at an equal distance from Cairo and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 105 contacts → | ||||
Partial evidence “Enduro Composites is a vertically integrated manufacturer of FRP composites.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 105 contacts → | ||||
Partial evidence “Using foams, polyesters and fiberglass, MAP develops full service manufacturing solutions from tooling inception through field installation.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 94 contacts → | ||||
Strong evidence “Polser is a leading manufacturer of fiberglass-reinforced plastic (FRP) solutions, delivering high-performance composite materials for the trailers, truck bodies, passenger vans…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 93 contacts → | ||||
Partial evidence “MasterMold, LLC is a multi-site, Wisconsin based manufacturer.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 87 contacts → | ||||
Partial evidence “Epsilyte is one of North America’s leading producers of advanced insulative materials.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 84 contacts → | ||||
Partial evidence “Jushi Group, headquartered in the Tongxiang Economic Development Zone, Zhejiang, China, is one of the world’s largest producers of fiberglass reinforcements.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 79 contacts → | ||||
Indirect evidence “Soluçoes de produtos em Fibra de Vidro e Polietileno” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 73 contacts → | ||||
Partial evidence “Thermal & Acoustical Insulation supply & fabrication, fiberglass, mineral wool, ceramic fiber, biosoluble fiber, foam, gaskets, removable covers etc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 67 contacts → | ||||
Indirect evidence “Montex Glass Fibre Industries Pvt.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 65 contacts → | ||||
Indirect evidence “Establish a sustainable long-term company, fostering an entrepreneurial spirit, capable of adapting to emerging opportunities.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: fiberglass material manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names fiberglass material manufacturers.
- Partial evidence
- Its own public description names part of fiberglass material manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name fiberglass material manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,024 fiberglass material manufacturers worldwide
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Fiberglass material manufacturers worldwide at a glance
As of Sep 30, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among fiberglass material manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for fiberglass material manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “fiberglass material manufacturers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names fiberglass material manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among fiberglass material manufacturers, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 2,376 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 30, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Fiberglass material manufacturers by location
4 lists · largest firstEvery Fiberglass material manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names fiberglass material manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many fiberglass material manufacturers are there worldwide?
RevenueBase identified 1,024 fiberglass material manufacturers worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
SPI, headquartered in Charlotte, tops this list with the largest team on record.
Which country has the most fiberglass material manufacturers?
The United States leads with 163 companies, followed by India (157) and Brazil (62). Every fiberglass material manufacturers list by country and city is linked on this page.
Which city has the most fiberglass material manufacturers?
Ahmedabad leads with 18 headquartered companies, followed by Bangalore (10) and Mumbai (9).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,376 verified decision-maker contacts tracked across these 1,024 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.