Company lists · Data refreshed September 2026

Top 25 Polystyrene plastic sheet manufacturers based in the United States

Name: Polystyrene plastic sheet 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 228 companies tracked

RevenueBase identified 228 polystyrene plastic sheet manufacturers headquartered in the United States as of September 2026 and tracks 9,397 professional contacts across them, including 2,919 with verified work emails. Houston is the largest hub.

This list covers polystyrene plastic sheet 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 30, 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 30, 2026 86% judged on-target in blind review

228Companies

9,397Contacts tracked

2,919Verified emails

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The 25 largest polystyrene plastic sheet manufacturers based in the United States

Ranked by team size

Top 25 of 228 polystyrene plastic sheet manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to polystyrene plastic sheet 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	Inteplast Group	Strong evidence	Livingston, NJ, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,006 contacts →
	Strong evidence “About Inteplast Group Founded in 1991, Inteplast Group is the largest manufacturer of integrated plastics in North America, offering a wide variety of quality products.” Source: RevenueBase Database · checked Sep 30, 2026
2	Piedmont Plastics	Strong evidence	Charlotte, NC, United StatesHQ checked Sep 30, 2026	501-1,000	547 contacts →
	Strong evidence “Piedmont Plastics is a leading wholesale distributor of plastic sheet, rod, tube, and film, serving a wide range of industries across North America.” Source: RevenueBase Database · checked Sep 30, 2026
3	Polymershapes	Strong evidence	Charlotte, NC, United StatesHQ checked Sep 30, 2026	501-1,000	540 contacts →
	Strong evidence “Polymershapes is an industry-leading distributor of plastic sheet, rod, tube, film, and associated products, with seven decades of industry-leading heritage.” Source: RevenueBase Database · checked Sep 30, 2026
4	Flambeau, INC	Indirect evidence	Baraboo, WI, United StatesHQ checked Sep 30, 2026	1,001-5,000	495 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
5	Laird Plastics	Partial evidence	Irving, TX, United StatesHQ checked Sep 30, 2026	501-1,000	451 contacts →
	Partial evidence “Plastics have changed the world, enabling our society to enjoy the benefits of products that can be safer, lighter, stronger, cheaper and more practical than other materials.” Source: RevenueBase Database · checked Sep 30, 2026
6	Plaskolite	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 30, 2026	1,001-5,000	448 contacts →
	Indirect evidence “PLASKOLITE is the catalyst for thermoplastic innovation that accelerates transformation.” Source: RevenueBase Database · checked Sep 30, 2026
7	Toray Plastics America , INC	Partial evidence	North Kingstown, RI, United StatesHQ checked Sep 30, 2026	501-1,000	398 contacts →
	Partial evidence “At Toray Plastics (America), Inc, we dream big, work hard, and believe in possibilities.” Source: RevenueBase Database · checked Sep 30, 2026
8	Spartech LLC	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 30, 2026	501-1,000	343 contacts →
	Indirect evidence “Spartech has 11 U.S.” Source: RevenueBase Database · checked Sep 30, 2026
9	Spartech Corporation	Indirect evidence	Avon Lake, OH, United StatesHQ checked Sep 30, 2026	1,001-5,000	300 contacts →
	Indirect evidence “Designed Structures and Solutions As part of PolyOne's unmatched portfolio of innovative polymer solutions, the selection of solutions offered by Designed Structures and Solutions…” Source: RevenueBase Database · checked Sep 30, 2026
10	Petoskey Plastics	Partial evidence	Petoskey, MI, United StatesHQ checked Sep 30, 2026	201-500	248 contacts →
	Partial evidence “Since 1970, Petoskey Plastics has been the innovator in manufacturing blown plastic film and bags that are engineered for performance.” Source: RevenueBase Database · checked Sep 30, 2026
11	Professional Plastics	Strong evidence	Fullerton, CA, United StatesHQ checked Sep 30, 2026	201-500	222 contacts →
	Strong evidence “Professional Plastics is the global leader in the fabrication and distribution of high-performance plastics including: plastic sheet, rod, tube, film and parts.” Source: RevenueBase Database · checked Sep 30, 2026
12	Multi-Plastics, INC	Strong evidence	Lewis Center, OH, United StatesHQ checked Sep 30, 2026	51-200	148 contacts →
	Strong evidence “International film manufacturer / distributor of thin gauge plastic films to the envelope, carton, printing, packaging, and thermoforming markets.” Source: RevenueBase Database · checked Sep 30, 2026
13	Amerilux Family Of Companies	Indirect evidence	De Pere (green Bay), WI, United StatesHQ checked Sep 30, 2026	51-200	110 contacts →
	Indirect evidence “Started with nothing more than a vision and an entrepreneurial spirit, AmeriLux International was formed in May 2004.” Source: RevenueBase Database · checked Sep 30, 2026
14	Hexacomb Corporation	Partial evidence	Buffalo Grove, IL, United StatesHQ checked Sep 30, 2026	201-500	101 contacts →
	Partial evidence “Hexacomb is the leading global manufacturer of a high-performance paper product used in a wide variety of industrial applications.” Source: RevenueBase Database · checked Sep 30, 2026
15	ACI Plastics	Strong evidence	St. Louis, MO, United StatesHQ checked Sep 30, 2026	51-200	99 contacts →
	Strong evidence “ACI Plastics is a full service distributor and manufacturer of precision plastic products.” Source: RevenueBase Database · checked Sep 30, 2026
16	ES Robbins Corporation	Strong evidence	Muscle Shoals, AL, United StatesHQ checked Sep 30, 2026	51-200	99 contacts →
	Strong evidence “ES Robbins is an innovative manufacturer of extruded plastic products for office, industry, food service & equine facilities.” Source: RevenueBase Database · checked Sep 30, 2026
17	Ivex Protective Packaging	Partial evidence	Sidney, OH, United StatesHQ checked Sep 30, 2026	1,001-5,000	98 contacts →
	Partial evidence “Protective Packaging Company - We manufacture PE rolled foam, plank foam and bubble in addition to stocking bubble/kraft mailers.” Source: RevenueBase Database · checked Sep 30, 2026
18	Goex Corporation	Strong evidence	Janesville, WI, United StatesHQ checked Sep 30, 2026	201-500	94 contacts →
	Strong evidence “Established in 1990, GOEX Corporation is a leading manufacturer of custom plastic sheet and roll stock for the medical, print-on-plastic, and food packaging industries.” Source: RevenueBase Database · checked Sep 30, 2026
19	Midland Plastics, INC	Indirect evidence	New Berlin, WI, United StatesHQ checked Sep 30, 2026	51-200	90 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
20	Plymouth Foam, An Altor Company	Indirect evidence	Plymouth, WI, United StatesHQ checked Sep 30, 2026	51-200	89 contacts →
	Indirect evidence “Altor Solutions® is a dynamic, engineering-driven company whose goal is to design and produce superior products that help customers solve their needs for Packaging, Insulation and…” Source: RevenueBase Database · checked Sep 30, 2026
21	Epsilyte	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 30, 2026	201-500	87 contacts →
	Indirect evidence “Epsilyte is one of North America’s leading producers of advanced insulative materials.” Source: RevenueBase Database · checked Sep 30, 2026
22	Wicpack	Indirect evidence	Oklahoma City, OK, United StatesHQ checked Sep 30, 2026	201-500	74 contacts →
	Indirect evidence “Western Industries Corporation (WIC) has been providing best fit solutions that reduce the cost of protecting your products since 1973.” Source: RevenueBase Database · checked Sep 30, 2026
23	HFP	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	201-500	70 contacts →
	Partial evidence “HFP is an innovative company providing foam plastics solutions into a variety of market applications.” Source: RevenueBase Database · checked Sep 30, 2026
24	King Plastic Corporation	Partial evidence	North Port, FL, United StatesHQ checked Sep 30, 2026	51-200	70 contacts →
	Partial evidence “Mission Statement It is the mission and commitment of King Plastic Corp.” Source: RevenueBase Database · checked Sep 30, 2026
25	Romanow Container A Supplyone Company	Partial evidence	Westwood, MA, United StatesHQ checked Sep 30, 2026	51-200	64 contacts →
	Partial evidence “Manufacturers of Corrugated Packaging and Foam and Wood Protective Packaging and Distributors of Industrial Packaging Supplies and Packaging Machinery.” Source: RevenueBase Database · checked Sep 30, 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: polystyrene plastic sheet 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 polystyrene plastic sheet manufacturers.
Partial evidence: Its own public description names part of polystyrene plastic sheet manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name polystyrene plastic sheet 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 228 polystyrene plastic sheet manufacturers based in the United States

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Polystyrene plastic sheet manufacturers based in the United States at a glance

As of Sep 30, 2026

31.1%Verified-email coverage

41.2Average contacts per company

11-50Median size (employees)

3.9%Largest-city concentration · Houston

Sep 30, 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 228 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 polystyrene plastic sheet 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 “polystyrene plastic sheet 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 polystyrene plastic sheet 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 polystyrene plastic sheet 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, 2,919 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.

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 polystyrene plastic sheet 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 polystyrene plastic sheet manufacturers are there based in the United States?

RevenueBase identified 228 polystyrene plastic sheet 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?

Inteplast Group, headquartered in Livingston, tops this list with the largest team on record.

Which city has the most polystyrene plastic sheet manufacturers?

Houston leads with 9 headquartered companies, followed by Charlotte (5) and St. Louis (4).

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 2,919 verified decision-maker contacts tracked across these 228 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.