Company lists · Data refreshed September 2026

Top 25 Plastic composite manufacturers based in the United States

Name: Plastic composite 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 17, 2026 321 companies tracked

RevenueBase identified 321 plastic composite manufacturers headquartered in the United States as of September 2026 and tracks 10,422 professional contacts across them, including 3,365 with verified work emails. Houston is the largest hub.

This list covers plastic composite manufacturers headquartered in the United States, 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 17, 2026.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

321Companies

10,422Contacts tracked

3,365Verified emails

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

The 25 largest plastic composite manufacturers based in the United States

Ranked by team size

Top 25 of 321 plastic composite manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to plastic composite manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Trex Company	Partial evidence	Winchester, VA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,052 contacts →
	Partial evidence “At Trex, we don't just make composite decking - we invented it.” Source: RevenueBase Database · checked Sep 17, 2026
2	Composites ONE	Partial evidence	Schaumburg, IL, United StatesHQ checked Sep 17, 2026	501-1,000	632 contacts →
	Partial evidence “As the premier distributor and leading supplier of composite and high-performance materials, thousands of customers rely on Composites One every day.” Source: RevenueBase Database · checked Sep 17, 2026
3	Core Molding Technologies	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 17, 2026	1,001-5,000	441 contacts →
	Indirect 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 17, 2026
4	Molded Fiber Glass MFG Companies	Partial evidence	Ashtabula, OH, United StatesHQ checked Sep 17, 2026	1,001-5,000	437 contacts →
	Partial evidence “MFG's composites expertise is a result of 70 years of service to customers in many industries.” Source: RevenueBase Database · checked Sep 17, 2026
5	PEXCO	Strong evidence	Alpharetta, GA, United StatesHQ checked Sep 17, 2026	501-1,000	332 contacts →
	Strong evidence “Pexco is a leading manufacturer of high-performance plastic solutions engineered for manufacturers and end-users across North America.” Source: RevenueBase Database · checked Sep 17, 2026
6	Alphagary, An Orbia Business	Indirect evidence	Boston, NC, United StatesHQ checked Sep 17, 2026	501-1,000	281 contacts →
	Indirect evidence “Alphagary, an Orbia business, is pioneering innovation solutions to advance life around the world.” Source: RevenueBase Database · checked Sep 17, 2026
7	Entec Polymers	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 17, 2026	201-500	271 contacts →
	Indirect evidence “For over thirty-five years, Entec has helped grow our customers’ businesses by forging strong, trust-driven partnerships.” Source: RevenueBase Database · checked Sep 17, 2026
8	Roechling Industrial North America	Indirect evidence	Dallas, NC, United StatesHQ checked Sep 17, 2026	501-1,000	221 contacts →
	Indirect evidence “Join the team!” Source: RevenueBase Database · checked Sep 17, 2026
9	Aurora Material Solutions	Indirect evidence	Streetsboro, OH, United StatesHQ checked Sep 17, 2026	201-500	199 contacts →
	Indirect evidence “People, Partners and Possibilities in Polymer Compound Solutions A global leader in advanced polymers, Aurora Material Solutions delivers unmatched product quality and customized…” Source: RevenueBase Database · checked Sep 17, 2026
10	Timbertech	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	201-500	194 contacts →
	Indirect evidence “TimberTech gives homeowners, builders, architects, and contractors attractive, low-maintenance, sustainable choices to reinvent outdoor spaces.” Source: RevenueBase Database · checked Sep 17, 2026
11	Sekisui Kydex	Indirect evidence	Bloomsburg, PA, United StatesHQ checked Sep 17, 2026	201-500	168 contacts →
	Indirect evidence “SEKISUI KYDEX innovates and creates sustainable thermoplastic material solutions for the next generation of product design.” Source: RevenueBase Database · checked Sep 17, 2026
12	Bamberger Amco Polymers	Partial evidence	Orlando, FL, United StatesHQ checked Sep 17, 2026	51-200	144 contacts →
	Partial evidence “Bamberger Amco Polymers is a full line North American Plastic Distributor that has been in business for over 60 years with a philosophy of helping customers find better solutions…” Source: RevenueBase Database · checked Sep 17, 2026
13	Hanwha Advanced Materials America, LLC	Indirect evidence	Opelika, AL, United StatesHQ checked Sep 17, 2026	201-500	142 contacts →
	Indirect evidence “HANWHA ADVANCED MATERIALS AMERICA, LLC is a company based out of 4400 NORTHPARK DRIVE, OPELIKA, Alabama, United States.” Source: RevenueBase Database · checked Sep 17, 2026
14	Interstate Advanced Materials	Strong evidence	Sacramento, CA, United StatesHQ checked Sep 17, 2026	201-500	137 contacts →
	Strong evidence “Founded over four decades ago, Interstate Advanced Materials is a nationwide wholesale distributor of plastics and composite materials, serving a wide range of industries…” Source: RevenueBase Database · checked Sep 17, 2026
15	North American Composites	Partial evidence	Lino Lakes, MN, United StatesHQ checked Sep 17, 2026	201-500	135 contacts →
	Partial evidence “North American Composites (NAC) distributes materials and equipment from leading suppliers to the marine and composites industry.” Source: RevenueBase Database · checked Sep 17, 2026
16	Star Plastics	Partial evidence	Ravenswood, WV, United StatesHQ checked Sep 17, 2026	51-200	128 contacts →
	Partial evidence “Founded in 1988 and headquartered in Ravenswood, WV, Star Plastics is a leading producer of high-quality engineered compounds, product solutions and services, including an…” Source: RevenueBase Database · checked Sep 17, 2026
17	Mcclarin Composites	Strong evidence	Hanover, PA, United StatesHQ checked Sep 17, 2026	501-1,000	115 contacts →
	Strong evidence “McCLARIN Composites has been a premier supplier of large Thermoplastic and Fiberglass Reinforced Plastic components since 1953.” Source: RevenueBase Database · checked Sep 17, 2026
18	Euro-Composites Corp	Partial evidence	Elkwood, VA, United StatesHQ checked Sep 17, 2026	51-200	112 contacts →
	Partial evidence “The EC Group is a global player in the field of high-quality and sophisticated composite materials.” Source: RevenueBase Database · checked Sep 17, 2026
19	PENDA	Strong evidence	Portage, WI, United StatesHQ checked Sep 17, 2026	201-500	111 contacts →
	Strong evidence “Penda channels its expertise in plastics engineering and manufacturing into two market-leading businesses: Commercial Products for both Original Equipment Manufacturers (OEM) and…” Source: RevenueBase Database · checked Sep 17, 2026
20	Enduro Composites	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	105 contacts →
	Strong evidence “Enduro Composites is a vertically integrated manufacturer of FRP composites.” Source: RevenueBase Database · checked Sep 17, 2026
21	Afco Industries, LLC	Indirect evidence	Alexandria, LA, United StatesHQ checked Sep 17, 2026	201-500	104 contacts →
	Indirect evidence “AFCO Industries is a domestic manufacturing company with four production facilities located in the Greater Mid-South.” Source: RevenueBase Database · checked Sep 17, 2026
22	Mastermold, LLC	Partial evidence	Johnson Creek, WI, United StatesHQ checked Sep 17, 2026	51-200	93 contacts →
	Partial evidence “MasterMold, LLC is a multi-site, Wisconsin based manufacturer.” Source: RevenueBase Database · checked Sep 17, 2026
23	Ridge Corporation	Strong evidence	Pataskala, OH, United StatesHQ checked Sep 17, 2026	51-200	85 contacts →
	Strong evidence “Based in Central Ohio, Ridge Corporation is an engineering based, solutions-oriented manufacturer and marketer of advanced composites, specializing in next generation resilient…” Source: RevenueBase Database · checked Sep 17, 2026
24	Plastics Engineering Company Plenco	Indirect evidence	Sheboygan, WI, United StatesHQ checked Sep 17, 2026	201-500	85 contacts →
	Indirect evidence “PLENCO is a materials company advancing the systems that power industry.” Source: RevenueBase Database · checked Sep 17, 2026
25	King Plastic Corporation	Partial evidence	North Port, FL, United StatesHQ checked Sep 17, 2026	51-200	70 contacts →
	Partial evidence “Mission Statement It is the mission and commitment of King Plastic Corp.” Source: RevenueBase Database · checked Sep 17, 2026

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: plastic composite 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 plastic composite manufacturers.
Partial evidence: Its own public description names part of plastic composite manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name plastic composite 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 321 plastic composite manufacturers based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,365 reachable decision-makers.

Free signup · no credit card

View the full list →

Plastic composite manufacturers based in the United States at a glance

As of Sep 17, 2026

32.3%Verified-email coverage

32.5Average contacts per company

11-50Median size (employees)

2.8%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 321 companies.

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 plastic composite 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “plastic composite 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 plastic composite 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 plastic composite manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 3,365 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 17, 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.

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 plastic composite 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 plastic composite manufacturers are there based in the United States?

RevenueBase identified 321 plastic composite manufacturers headquartered in the United States 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?

Trex Company, headquartered in Winchester, tops this list with the largest team on record.

Which city has the most plastic composite manufacturers?

Houston leads with 9 headquartered companies, followed by New York (5) and Ontario (5).

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 3,365 verified decision-maker contacts tracked across these 321 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 321 plastic composite manufacturers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Plastic composite manufacturers by geography

Browse the directory

Browse: Companies home · All United States lists · All Plastic composite manufacturers lists · New lists

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.