Company lists · Data refreshed September 2026

Top 25 Plastic additives manufacturers based in the United States

Name: Plastic additives 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 112 companies tracked

RevenueBase identified 112 plastic additives manufacturers headquartered in the United States as of September 2026 and tracks 10,390 professional contacts across them, including 2,721 with verified work emails. Houston is the largest hub.

This list covers plastic additives 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

112Companies

10,390Contacts tracked

2,721Verified emails

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The 25 largest plastic additives manufacturers based in the United States

Ranked by team size

Top 25 of 112 plastic additives 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 additives 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	Ashland	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 17, 2026	1,001-5,000	5,580 contacts →
	Partial evidence “Ashland Inc.(NYSE: ASH) is a global additives and specialty ingredients company with a conscious and proactive mindset for environmental, social and governance (ESG).” Source: RevenueBase Database · checked Sep 17, 2026
2	A. Schulman, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	703 contacts →
	Indirect evidence “A.” Source: RevenueBase Database · checked Sep 17, 2026
3	Primex	Partial evidence	Richmond, IN, United StatesHQ checked Sep 17, 2026	1,001-5,000	369 contacts →
	Partial evidence “Primex, founded in 1965, is a global leader in the extruded plastics industry.” Source: RevenueBase Database · checked Sep 17, 2026
4	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
5	Milliken Chemical	Strong evidence	Spartanburg, SC, United StatesHQ checked Sep 17, 2026	5,001-10,000	277 contacts →
	Strong evidence “We’re continually developing innovative solutions in plastics additives, colorants, silicones and chemical intermediates that help to create a better tomorrow.” Source: RevenueBase Database · checked Sep 17, 2026
6	Colortech INC	Strong evidence	Morristown, TN, United StatesHQ checked Sep 17, 2026	201-500	249 contacts →
	Strong evidence “Colortech is a North American based manufacturer of color and additive concentrates for the plastics industry.” Source: RevenueBase Database · checked Sep 17, 2026
7	Galata Chemicals, LLC	Partial evidence	Jersey City, NJ, United StatesHQ checked Sep 17, 2026	201-500	185 contacts →
	Partial evidence “Galata Chemicals, LLC is a new specialty chemical company formed with the acquisition of Chemtura's PVC Additives business.” Source: RevenueBase Database · checked Sep 17, 2026
8	Shamrock Technologies	Strong evidence	Newark, NJ, United StatesHQ checked Sep 17, 2026	201-500	183 contacts →
	Strong evidence “Headquartered in Newark, NJ, Shamrock Technologies is a leading global manufacturer and supplier of specialty additives.” Source: RevenueBase Database · checked Sep 17, 2026
9	Saco AEI Polymers	Partial evidence	Sheboygan, WI, United StatesHQ checked Sep 17, 2026	501-1,000	172 contacts →
	Partial evidence “SACO AEI Polymers is a Customer-Driven manufacturer providing Premium Value and Innovative Polymer Solutions in North America.” Source: RevenueBase Database · checked Sep 17, 2026
10	Dover Chemical Corporation	Indirect evidence	Dover, OH, United StatesHQ checked Sep 17, 2026	201-500	172 contacts →
	Indirect evidence “Dover Chemical Corporation is a trusted leader in specialty chemicals that power everyday performance-from industrial applications to consumer products.” Source: RevenueBase Database · checked Sep 17, 2026
11	Emerald Performance Materials	Indirect evidence	Vancouver, United StatesHQ checked Sep 17, 2026	501-1,000	152 contacts →
	Indirect evidence “Specialty chemicals company LANXESS acquired Emerald Kalama Chemical and now has an even stronger Consumer Protection segment with a broad product portfolio and a global scope.” Source: RevenueBase Database · checked Sep 17, 2026
12	Montachem International, INC	Strong evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 17, 2026	51-200	133 contacts →
	Strong evidence “Montachem International distributes a complete line of thermoplastic resins and related additives to meet the needs of plastics’ converters worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
13	Lanxess Corporation	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	128 contacts →
	Indirect evidence “LANXESS Corporation is a chemicals company based out of RIDC Park West Road, Pittsburgh, Pennsylvania, United States.” Source: RevenueBase Database · checked Sep 17, 2026
14	Rhein Chemie	Indirect evidence	Chardon, OH, United StatesHQ checked Sep 17, 2026	501-1,000	121 contacts →
	Indirect evidence “Rhein Chemie Group Headquarters: Mannheim, Germany US Headquarters: Chardon, Ohio, USA CEO & President: Dr.” Source: RevenueBase Database · checked Sep 17, 2026
15	Struktol Company Of America, LLC	Indirect evidence	Stow, OH, United StatesHQ checked Sep 17, 2026	51-200	70 contacts →
	Indirect evidence “Struktol Company of America, LLC is a member of the Schill+Seilacher group, with representation in over 100 countries around the world.” Source: RevenueBase Database · checked Sep 17, 2026
16	Modern Dispersions	Indirect evidence	Leominster, MA, United StatesHQ checked Sep 17, 2026	51-200	67 contacts →
	Indirect evidence “Modern Dispersions, Incorporated (MDI) is a thermoplastics compounder and concentrate maker.” Source: RevenueBase Database · checked Sep 17, 2026
17	Vanderbilt Chemicals, LLC	Indirect evidence	Norwalk, CT, United StatesHQ checked Sep 17, 2026	201-500	48 contacts →
	Indirect evidence “R.” Source: RevenueBase Database · checked Sep 17, 2026
18	Global Plastics, LLC	Partial evidence	Manchester, NH, United StatesHQ checked Sep 17, 2026	51-200	48 contacts →
	Partial evidence “Founded in 2008, Global Plastics, LLC is a leading plastics distribution company and part of the MGI International, LLC family of companies.” Source: RevenueBase Database · checked Sep 17, 2026
19	Dura Chemicals, INC	Partial evidence	Emeryville, CA, United StatesHQ checked Sep 17, 2026	51-200	46 contacts →
	Partial evidence “Dura Chemical Corporation was founded in India in 1948 as a supplier of raw materials for the coatings, plastics, rubber, and cosmetics industries.” Source: RevenueBase Database · checked Sep 17, 2026
20	PCC Chemax	Indirect evidence	Piedmont, SC, United StatesHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “PCC Chemax, headquartered in Piedmont, South Carolina, is a strategic member of the global PCC Group - one of Europe’s largest and most established chemical producers.” Source: RevenueBase Database · checked Sep 17, 2026
21	Mosaic Color & Additives, LLC	Strong evidence	Greenville, SC, United StatesHQ checked Sep 17, 2026	11-50	36 contacts →
	Strong evidence “We are a manufacturer of color concentrates and additives to the plastics industry, with an expertise in wood plastic composites (WPC).” Source: RevenueBase Database · checked Sep 17, 2026
22	Amfine Chemical Corporation	Indirect evidence	Hasbrouck Heights, NJ, United StatesHQ checked Sep 17, 2026	51-200	35 contacts →
	Indirect evidence “AMFINE CHEMICAL CORPORATION is a chemicals company based out of Terrace Avenue, Suite 602B, Hasbrouck Heights, New Jersey, United States.” Source: RevenueBase Database · checked Sep 17, 2026
23	Norac Additives LLC	Partial evidence	Ambler, PA, United StatesHQ checked Sep 17, 2026	51-200	31 contacts →
	Partial evidence “Norac Additives is a polymer additive company specializing in metallic stearates (COAD and Mathe), ester lubricants and blends (Norac EL and XL), and heat stabilizers (Norstab)…” Source: RevenueBase Database · checked Sep 17, 2026
24	Polymer Solutions Group	Strong evidence	Cleveland, OH, United StatesHQ checked Sep 17, 2026	201-500	24 contacts →
	Strong evidence “Polymer Solutions Group (PSG) is an innovative manufacturer of proprietary and custom polymers additives, dispersions and performance chemicals for the rubber, plastic, wood…” Source: RevenueBase Database · checked Sep 17, 2026
25	Sachtleben LLC	Partial evidence	White Plains, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	21 contacts →
	Partial evidence “Sachtleben is a leading manufacturer of top-quality chemical products with a unique range of white pigments and extenders.” 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 additives 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 additives manufacturers.
Partial evidence: Its own public description names part of plastic additives manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name plastic additives 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 112 plastic additives manufacturers based in the United States

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Plastic additives manufacturers based in the United States at a glance

As of Sep 17, 2026

26.2%Verified-email coverage

92.8Average contacts per company

11-50Median size (employees)

7.1%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

10001+

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 112 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 additives 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 additives 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 additives 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 additives 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, 2,721 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 additives 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 additives manufacturers are there based in the United States?

RevenueBase identified 112 plastic additives 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?

Ashland, headquartered in Wilmington, tops this list with the largest team on record.

Which city has the most plastic additives manufacturers?

Houston leads with 8 headquartered companies, followed by Akron (2) and Belton (2).

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 2,721 verified decision-maker contacts tracked across these 112 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.

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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.