Company lists · Data refreshed September 2026
Top 25 Silicon additives manufacturers based in the United States
RevenueBase identified 63 silicon additives manufacturers headquartered in the United States as of September 2026 and tracks 9,992 professional contacts across them, including 2,469 with verified work emails. Norwalk is the largest hub.
This list covers silicon 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 18, 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 silicon additives manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 2 | 997 contacts → | ||||
Indirect evidence “Elementis is a global specialty chemical company, with 1,300 employees operating 17 manufacturing sites across the globe.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 3 | 281 contacts → | ||||
Indirect evidence “Alphagary, an Orbia business, is pioneering innovation solutions to advance life around the world.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 5 | 214 contacts → | ||||
Indirect evidence “At King Industries, Inc, we bring performance to countless products that shape our daily lives-whether it's the car you drive, the electronics you rely on, or the coatings that…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 7 | 171 contacts → | ||||
Indirect evidence “Gelest, Inc, headquartered in Morrisville, PA, USA, was founded in 1991 to serve the advanced technology applications markets and is recognized worldwide as an innovator…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 8 | 128 contacts → | ||||
Indirect evidence “Dixie is a technology-driven specialty chemical company with expertise in the development, manufacturing, and marketing of high performance specialty chemicals.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 9 | 121 contacts → | ||||
Indirect evidence “Rhein Chemie Group Headquarters: Mannheim, Germany US Headquarters: Chardon, Ohio, USA CEO & President: Dr.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 10 | 77 contacts → | ||||
Indirect evidence “R.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 12 | 66 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 13 | 53 contacts → | ||||
Strong evidence “AB Specialty Silicones is a US Manufacturer and Worldwide Distributor of specialty silicone chemicals.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 14 | 48 contacts → | ||||
Indirect evidence “R.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 15 | 46 contacts → | ||||
Indirect 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 18, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 18 | 30 contacts → | ||||
Partial evidence “Shin-Etsu Polymer was established in 1960 as a subsidiary of Shin-Etsu Chemical - an industry leader in PVC and semiconductor silicone products.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 20 | 24 contacts → | ||||
Indirect evidence “R.E.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 22 | 20 contacts → | ||||
Strong evidence “The Kish Company is a leading manufacturer and supplier of industrial minerals, extenders, additives and pigments to the plastic, paint, rubber, ink, and sealant industries.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 23 | 19 contacts → | ||||
Partial evidence “We are a custom compounding sealant and adhesive manufacturer.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 24 | 17 contacts → | ||||
Partial evidence “High Performance Materials (Specialty Chemicals & Polymers) NuGeneration Technologies,"NuGenTec®" Develops and Manufactures Specialty Chemical Products for process manufacturers…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 contacts → | ||||
Partial evidence “Italmatch is a leading innovative Chemical Group, specialized in Performance Additives for the Lubricant, Plastics, Water & Oil markets.” Source: RevenueBase Database · checked Sep 18, 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: silicon 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 silicon additives manufacturers.
- Partial evidence
- Its own public description names part of silicon additives manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name silicon 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 63 silicon additives manufacturers based in the United States
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Silicon additives manufacturers based in the United States at a glance
As of Sep 18, 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 63 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 silicon 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 “silicon 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 silicon 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 silicon 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, 2,469 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 18, 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 silicon 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 silicon additives manufacturers are there based in the United States?
RevenueBase identified 63 silicon 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 silicon additives manufacturers?
Norwalk leads with 3 headquartered companies, followed by Boston (2) and Dublin (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 2,469 verified decision-maker contacts tracked across these 63 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 18, 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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