Company lists · Data refreshed September 2026
Top 25 Polystyrene resin manufacturers based in the United States
RevenueBase identified 82 polystyrene resin manufacturers headquartered in the United States as of September 2026 and tracks 9,617 professional contacts across them, including 2,251 with verified work emails. Houston is the largest hub.
This list covers polystyrene resin 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.
The 25 largest polystyrene resin manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,580 contacts → | ||||
Partial evidence “Chevron Phillips Chemical is one of the world’s top chemical manufacturers of olefins and polyolefins and a leading supplier of aromatics, alpha olefins, styrenics, specialty…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,936 contacts → | ||||
Indirect evidence “Founded in 1950, Carpenter Co.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 396 contacts → | ||||
Indirect evidence “At AmSty, we’re driven by a simple purpose: to create essential, sustainable materials that help build safe communities and support healthy living.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 283 contacts → | ||||
Indirect evidence “Today, the Ravago group represents over metric tons of annual polymer sales serving more than active customers through 325+ locations across more than 60+ countries worldwide.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 219 contacts → | ||||
Indirect evidence “From soft drink bottles to packaging trays, from clothing to carpet, INEOS Aromatics makes the chemicals used to produce many of the things we use in our daily lives.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 218 contacts → | ||||
Indirect evidence “Nan Ya Plastics Corporation, America ("NPCA"), a Delaware-incorporated company and a wholly-owned subsidiary of Nan Ya Plastics Corporation, Taiwan ("NPC-Taiwan"), was founded in…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 169 contacts → | ||||
Indirect evidence “Based in Pasadena, Texas, Baystar is a people company that produces highly customized enhanced polyethylene for ultimate performance and sustainable solutions across the value…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 87 contacts → | ||||
Indirect 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. | |||||
| 9 | 83 contacts → | ||||
Partial evidence “Deltech is a world leader in the production of high-performance aromatic monomers and specialized crystal polystyrene.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 70 contacts → | ||||
Indirect evidence “HFP is an innovative company providing foam plastics solutions into a variety of market applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 35 contacts → | ||||
Indirect evidence “Founded in 1961, Marko is a leader in foam-products manufacturing.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 contacts → | ||||
Strong evidence “Benchmark Foam Inc is a manufacturer of expanded polystyrene (EPS) and other specialty plastics.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 25 contacts → | ||||
Partial evidence “The largest EPS manufacturer in America” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 21 contacts → | ||||
Partial evidence “Distributor of Prime Engineering and Commodity thermoplastic resins.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 20 contacts → | ||||
Strong evidence “Founded in 1984, RAPAC serves companies worldwide with a diverse range of polystyrene products through our EcoSix® recycled resins portfolio.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 17 contacts → | ||||
Partial evidence “Manufacturer of packaging, insulation and componentry used in a wide variety of industries including medical, pharmaceutical, grocery, biotech, consumer goods and specialty foods.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 14 contacts → | ||||
Strong evidence “Commodore Plastics is a world class manufacturer of polystyrene foam products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 14 contacts → | ||||
Strong evidence “FMI-EPS llc is a manufacturer of Expanded Polystyrene products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 14 contacts → | ||||
Strong evidence “Insulation Company of America is a manufacturer of EPS (Expanded Polystyrene), one of the most economical and versatile insulation products on the market.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 12 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 11 contacts → | ||||
Indirect evidence “Michigan Foam Products Inc is a real estate company based out of 1820 Chicago Dr Sw, Wyoming, Michigan, United States.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Partial evidence “We are a leading manufacturer of custom foam packaging materials for many industries, from industrial and pharmaceutical packaging to food and automotive parts packaging.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Partial evidence “We expertly mold all types of custom plastic solutions, from expandable polypropylene (EPP) and expandable polystyrene (EPS) with our exclusive proprietary technology used solely…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 contacts → | ||||
Partial evidence “Geofoam International is a worldwide leader in sales and distribution of Expanded Polystyrene blocks and sheets.” 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: polystyrene resin 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 resin manufacturers.
- Partial evidence
- Its own public description names part of polystyrene resin manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name polystyrene resin 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 82 polystyrene resin manufacturers based in the United States
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Polystyrene resin manufacturers based in the United States at a glance
As of Sep 30, 2026Companies by employee count
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 82 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 resin 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 resin 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 resin 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 resin 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, 2,251 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 resin 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 resin manufacturers are there based in the United States?
RevenueBase identified 82 polystyrene resin 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?
Chevron Phillips Chemical Company, headquartered in Spring, tops this list with the largest team on record.
Which city has the most polystyrene resin manufacturers?
Houston leads with 6 headquartered companies, followed by Orlando (3) and Richmond (3).
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 2,251 verified decision-maker contacts tracked across these 82 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.
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