Company lists · Data refreshed September 2026
Top 25 Polystyrene producers based in the United States
RevenueBase identified 198 polystyrene producers headquartered in the United States as of September 2026 and tracks 7,905 professional contacts across them, including 1,985 with verified work emails. Houston is the largest hub.
This list covers polystyrene producers 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 20, 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 producers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,936 contacts → | ||||
Indirect evidence “Founded in 1950, Carpenter Co.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 495 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 448 contacts → | ||||
Indirect evidence “PLASKOLITE is the catalyst for thermoplastic innovation that accelerates transformation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 398 contacts → | ||||
Indirect evidence “At Toray Plastics (America), Inc, we dream big, work hard, and believe in possibilities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 248 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 240 contacts → | ||||
Indirect evidence “Asahi Kasei Plastics North America, Inc.(“APNA”) is a leading manufacturer of innovative, high-performance, engineered polymers and chemically coupled polypropylene resins in…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 142 contacts → | ||||
Indirect evidence “At Ensinger's facilites in North America, we focus on processing high performance engineering polymers in several manufacturing facilities in New Jersey, Delaware, Texas…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 128 contacts → | ||||
Indirect evidence “General Plastics Manufacturing Company - Where Great Ideas Take Shape - has been a leading innovator in the plastics industry for over 80 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 127 contacts → | ||||
Partial evidence “We are a polypropylene producer who delivers consistent quality and reliable performance with a low carbon footprint of 1.00 kg CO2e/kg PP at typical polypropylene market prices.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 116 contacts → | ||||
Indirect evidence “MUEHLSTEIN was founded in 1911, and grew as a private enterprise to market leader until becoming a wholly owned subsidiary of Mobil Chemical Company from 1980 until 1996.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 93 contacts → | ||||
Partial evidence “Drew Foam has been molding and fabricating EPS (Expanded Polystyrene) since 1965.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 90 contacts → | ||||
Indirect evidence “At PolyQuest, we are dedicated to providing the most comprehensive, cost-competitive portfolio of virgin prime and wide spec PET resins, recycled PET products and services as well…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 89 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 87 contacts → | ||||
Partial evidence “Epsilyte is one of North America’s leading producers of advanced insulative materials.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 80 contacts → | ||||
Indirect evidence “Specialized Packaging Group is the parent company for IVEX, IndusPac, Specialized Packaging Solutions, and Packaging Specialists Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 77 contacts → | ||||
Indirect evidence “SEKISUI Voltek, founded in 1969, is a North American leader in closed-cell, cross-linked polyolefin foam.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 70 contacts → | ||||
Indirect evidence “HFP is an innovative company providing foam plastics solutions into a variety of market applications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 63 contacts → | ||||
Indirect evidence “With over five decades of quality, service and innovation, NPX ONE is trusted for exceptional performance.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 59 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 58 contacts → | ||||
Indirect evidence “Founded in 1972, Crayex is a custom manufacturer of blown polyethylene films and bags designed for a broad range of consumer, transportation, and industrial applications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 53 contacts → | ||||
Indirect evidence “Welcome to Alliance Plastics, here we are a veteran-owned company that takes pride in developing excellent relationships with our customers and partners.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 53 contacts → | ||||
Indirect evidence “The world's largest plastics recycler and HDPE and PP recycled resin supplier.” Source: RevenueBase Database · checked Sep 20, 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 producers. 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 producers.
- Partial evidence
- Its own public description names part of polystyrene producers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name polystyrene producers. 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 198 polystyrene producers based in the United States
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Polystyrene producers based in the United States at a glance
As of Sep 20, 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 198 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 producers, 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 producers”. 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 producers), 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 producers, 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, 1,985 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 20, 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 producers, 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 producers are there based in the United States?
RevenueBase identified 198 polystyrene producers 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?
Carpenter CO, headquartered in Richmond, tops this list with the largest team on record.
Which city has the most polystyrene producers?
Houston leads with 10 headquartered companies, followed by Miami (5) and Charlotte (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 1,985 verified decision-maker contacts tracked across these 198 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 20, 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.