Company lists · Data refreshed September 2026

Top 25 Fiberglass reinforced plastic enclosure manufacturers based in the United States

Name: Fiberglass reinforced plastic enclosure manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 256 companies tracked

RevenueBase identified 256 company matches for fiberglass reinforced plastic enclosure manufacturers associated with the United States as of September 2026 and tracks 4,546 professional contacts across them, including 1,300 with verified work emails. Houston is the largest hub.

This list covers company matches for fiberglass reinforced plastic enclosure manufacturers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 30, 2026 How this list was built

256Companies

4,546Contacts tracked

1,300Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest fiberglass reinforced plastic enclosure manufacturers based in the United States

Ranked by team size

Top 25 of 256 company matches for fiberglass reinforced plastic enclosure manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Strongwell	Exact match	Bristol, VA, United StatesHQ recorded Sep 30, 2026	501-1,000	215 contacts →
	Exact match “Strongwell is the world's leading pultruder of fiber reinforced (FRP) structural components.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Fibergrate Composite Structures	Exact match	Dallas, TX, United StatesHQ recorded Sep 30, 2026	201-500	195 contacts →
	Exact match “With six decades of experience in the Fiberglass Reinforced Plastics industry, Fibergrate Composite Structures manufactures and sells the most complete line of high-performance…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	Allied Moulded Products, INC	Exact match	Bryan, OH, United StatesHQ recorded Sep 30, 2026	201-500	191 contacts →
	Exact match “Allied Moulded Products, Inc.(Allied Moulded) is the Contractor’s Choice of nonmetallic electrical boxes and enclosures in today's residential, commercial and industrial markets.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Saginaw Control And Engineering	Exact match	Saginaw, MI, United StatesHQ recorded Sep 30, 2026	201-500	152 contacts →
	Exact match “We are an electrical enclosure manufacturer founded in 1963.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	A.R.E. Accessories	Exact match	Massillon, OH, United StatesHQ recorded Sep 30, 2026	501-1,000	128 contacts →
	Exact match “A.R.E.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	RPS Composites, INC	Exact match	Mobile, AL, United StatesHQ recorded Sep 30, 2026	51-200	125 contacts →
	Exact match “RPS Composites provides engineered dual laminate and FRP pipe and tank solutions to industrial customers for corrosive fluid processing, handling, and storage applications.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Mcclarin Composites	Exact match	Hanover, PA, United StatesHQ recorded Sep 30, 2026	501-1,000	115 contacts →
	Exact match “McCLARIN Composites has been a premier supplier of large Thermoplastic and Fiberglass Reinforced Plastic components since 1953.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Enduro Composites	Exact match	Houston, TX, United StatesHQ recorded Sep 30, 2026	51-200	105 contacts →
	Exact match “Enduro Composites is a vertically integrated manufacturer of FRP composites.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Robroy Industries	Exact match	Verona, PA, United StatesHQ recorded Sep 30, 2026	51-200	101 contacts →
	Exact match “Founded in 1905 and headquartered in Verona, PA, we have been serving the electrical products industry for more than 100 years.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	MUM Industries INC	Exact match	Mentor, OH, United StatesHQ recorded Sep 30, 2026	51-200	97 contacts →
	Exact match “Founded in 1996, MUM Industries, Inc.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	States Manufacturing Corporation	Exact match	Champlin, MN, United StatesHQ recorded Sep 30, 2026	51-200	95 contacts →
	Exact match “Our mission at States Manufacturing is to make custom electrical and metal products that help companies in a broad spectrum of industries deliver better results for their…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Mastermold, LLC	Exact match	Johnson Creek, WI, United StatesHQ recorded Sep 30, 2026	51-200	93 contacts →
	Exact match “MasterMold, LLC is a multi-site, Wisconsin based manufacturer.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Jushi USA	Exact match	Irwindale, CA, United StatesHQ recorded Sep 30, 2026	5,001-10,000	84 contacts →
	Exact match “Jushi Group, headquartered in the Tongxiang Economic Development Zone, Zhejiang, China, is one of the world’s largest producers of fiberglass reinforcements.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Nema Enclosures Manufacturing	Exact match	Houston, TX, United StatesHQ recorded Sep 30, 2026	51-200	73 contacts →
	Exact match “NEMA Enclosures designs and fabricates custom UL-rated electrical and instrument enclosures built to your specifications and delivered on your schedule.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Ershigs, Inc. By Fiber Glass Systems	Exact match	Bellingham, WA, United StatesHQ recorded Sep 30, 2026	201-500	66 contacts →
	Exact match “ENGINEERING With the start of every project, Ershigs develops a comprehensive plan, including: project assessment, process engineering, systems engineering, design, analysis, and…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Scott Manufacturing Solutions, INC	Exact match	Chino, CA, United StatesHQ recorded Sep 30, 2026	51-200	65 contacts →
	Exact match “Since 1966, we’ve been a trusted manufacturer of custom medium-voltage (MV) enclosures, overhead racks, and hardware designed to meet the unique needs of our customers.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Bedford Reinforced Plastics	Exact match	Bedford, PA, United StatesHQ recorded Sep 30, 2026	201-500	62 contacts →
	Exact match “We provide a smart alternative to wood, steel and aluminum.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Txla Systems	Exact match	Huffman, TX, United StatesHQ recorded Sep 30, 2026	51-200	56 contacts →
	Exact match “Modular Building Fabrication & Integration Electrical Equipment Manufacturing Custom Fabrication & Enclosures” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	Marine Electrical Products	Exact match	Lebanon, MO, United StatesHQ recorded Sep 30, 2026	51-200	52 contacts →
	Exact match “Manufacturer of control panels, composite sub-assemblies, and wiring harnesses for mobile applications primarily in the marine industry.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Haysite Reinforced Plastics LTD	Exact match	Erie, PA, United StatesHQ recorded Sep 30, 2026	51-200	51 contacts →
	Exact match “Haysite Reinforced Plastics, located in Erie, PA, is among the worldwide leaders in the formulation and processing of thermoset composite materials.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	BUD Industries, INC	Exact match	Willoughby, OH, United StatesHQ recorded Sep 30, 2026	51-200	47 contacts →
	Exact match “Founded in 1928, Bud Industries, Inc.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	Champion Fiberglass, INC	Exact match	Spring, TX, United StatesHQ recorded Sep 30, 2026	51-200	41 contacts →
	Exact match “Champion Fiberglass, Inc, is the leading manufacturer of fiberglass conduit and strut for the electrical and mechanical markets.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Janco Engineered Products LLC	Exact match	Mishawaka, IN, United StatesHQ recorded Sep 30, 2026	51-200	41 contacts →
	Exact match “Janco Engineered Products manufactures a wide range of advanced composites.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	Eplastics	Exact match	San Diego, CA, United StatesHQ recorded Sep 30, 2026	51-200	37 contacts →
	Exact match “We service wholesale and retail purchases of plastic with a wide selection of Plexiglas® sheets, tools, polish, adhesives, and accessories.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	National Manufacturing Group	Exact match	Troy, MI, United StatesHQ recorded Sep 30, 2026	201-500	34 contacts →
	Exact match “National Composites, is a multi-plant OEM supplier of custom molded FRP, Thermoformed plastic, and full metal cab fabrications and assembly.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “fiberglass reinforced plastic enclosure manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 256 fiberglass reinforced plastic enclosure manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 1,300 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Fiberglass reinforced plastic enclosure manufacturers based in the United States at a glance

As of Sep 30, 2026

28.6%Verified-email coverage

17.8Average contacts per company

11-50Median size (employees)

3.5%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 256 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “fiberglass reinforced plastic enclosure manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,300 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “fiberglass reinforced plastic enclosure manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fiberglass reinforced plastic enclosure manufacturers are there based in the United States?

RevenueBase identified 256 company matches for fiberglass reinforced plastic enclosure manufacturers associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Strongwell tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most fiberglass reinforced plastic enclosure manufacturers?

Houston leads with 9 company records, followed by Elkhart (3) and Jacksonville (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,300 professional contacts with verified work emails tracked across these 256 companies; direct dials are available where recorded.

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.

Ready to reach these companies? Verified emails and direct dials for all 256 fiberglass reinforced plastic enclosure manufacturers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Fiberglass reinforced plastic enclosure manufacturers by geography

Browse the directory

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 SmartSearch, 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.