Company lists · Data refreshed September 2026

Top 25 Automotive seal suppliers based in the United States

Name: Automotive seal suppliers 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 207 companies tracked

RevenueBase identified 207 automotive seal suppliers headquartered in the United States as of September 2026 and tracks 5,749 professional contacts across them, including 1,814 with verified work emails. Houston is the largest hub.

This list covers automotive seal suppliers 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

207Companies

5,749Contacts tracked

1,814Verified emails

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The 25 largest automotive seal suppliers based in the United States

Ranked by team size

Top 25 of 207 automotive seal suppliers 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 automotive seal suppliers: 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	Henniges Automotive	Partial evidence	Auburn Hills, MI, United StatesHQ checked Sep 30, 2026	5,001-10,000	1,456 contacts →
	Partial evidence “Henniges provides automotive original equipment manufacturers (OEMs) with sealing systems for doors, windows, trunks, lift gates, sunroofs and hoods.” Source: RevenueBase Database · checked Sep 30, 2026
2	Lamons	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	501-1,000	410 contacts →
	Partial evidence “Founded in 1947, Lamons is one of the largest privately held gasket, seal, bolt and hose assembly manufacturers in the world.” Source: RevenueBase Database · checked Sep 30, 2026
3	Utex Industries INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	501-1,000	304 contacts →
	Indirect evidence “Utex Industries, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
4	Wolverine Advanced Materials	Indirect evidence	Dearborn, MI, United StatesHQ checked Sep 30, 2026	501-1,000	246 contacts →
	Indirect evidence “Wolverine Advanced Materials is a leading developer and manufacturer of high-performance materials.” Source: RevenueBase Database · checked Sep 30, 2026
5	BRC Rubber & Plastics INC	Strong evidence	Fort Wayne, IN, United StatesHQ checked Sep 30, 2026	501-1,000	188 contacts →
	Strong evidence “BRC Rubber & Plastics Inc, headquartered in Fort Wayne, IN, is a leading automotive supplier specializing in the manufacture and marketing of molded rubber and plastic components…” Source: RevenueBase Database · checked Sep 30, 2026
6	Zatkoff Seals & Packings	Partial evidence	Farmington Hills, MI, United StatesHQ checked Sep 30, 2026	51-200	124 contacts →
	Partial evidence “Roger Zatkoff founded Zatkoff Seals & Packings in 1959.” Source: RevenueBase Database · checked Sep 30, 2026
7	Sealing Devices INC	Indirect evidence	Lancaster, NY, United StatesHQ checked Sep 30, 2026	201-500	115 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
8	National Guard Products, INC	Indirect evidence	Memphis, TN, United StatesHQ checked Sep 30, 2026	201-500	103 contacts →
	Indirect evidence “Since 1935, National Guard Products has been manufacturing the finest weatherstripping and threshold products, as well as a lite kit and louver line for steel and wood doors.” Source: RevenueBase Database · checked Sep 30, 2026
9	Seal & Design INC	Indirect evidence	Clarence, NY, United StatesHQ checked Sep 30, 2026	51-200	95 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
10	Aesseal INC	Partial evidence	Rockford, TN, United StatesHQ checked Sep 30, 2026	1,001-5,000	95 contacts →
	Partial evidence “A market leading specialist, AESSEAL holds one of the world’s most comprehensive ‘standard inventory’ portfolios of mechanical seals, bearing seals, seal support systems and…” Source: RevenueBase Database · checked Sep 30, 2026
11	System Seals INC	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 30, 2026	51-200	88 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
12	Meteor Sealing Systems LLC	Strong evidence	Dover, OH, United StatesHQ checked Sep 30, 2026	201-500	82 contacts →
	Strong evidence “Meteor Sealing Systems LLC is an automotive supplier for complex EPDM sealing systems based out of 400 S Tuscarawas Ave, Dover, OH, United States.” Source: RevenueBase Database · checked Sep 30, 2026
13	ILPEA	Indirect evidence	Evansville, IN, United StatesHQ checked Sep 30, 2026	11-50	78 contacts →
	Indirect evidence “ILPEA is a plastics company based out of 2500 LYNCH RD, EVANSVILLE, Indiana, United States.” Source: RevenueBase Database · checked Sep 30, 2026
14	Nishikawa Cooper LLC	Indirect evidence	Fort Wayne, IN, United StatesHQ checked Sep 30, 2026	1,001-5,000	78 contacts →
	Indirect evidence “Nishikawa Cooper LLC is a company based out of Topeka, Bremen and Fort Wayne, Indiana, United States.” Source: RevenueBase Database · checked Sep 30, 2026
15	Trim-Lok, INC	Partial evidence	Buena Park, CA, United StatesHQ checked Sep 30, 2026	201-500	72 contacts →
	Partial evidence “Trim-Lok is a respected leader in the manufacturing of American-made, high-quality, and competitively priced trims and seals.” Source: RevenueBase Database · checked Sep 30, 2026
16	Martin Fluid Power MFP Seals	Indirect evidence	Madison Heights, MI, United StatesHQ checked Sep 30, 2026	51-200	70 contacts →
	Indirect evidence “Founded in 1977, Martin Fluid Power includes five distribution locations in the US, plus locations in England and Taiwan.” Source: RevenueBase Database · checked Sep 30, 2026
17	HGC Industries	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 30, 2026	201-500	67 contacts →
	Partial evidence “HGC Industries, a worldwide leader in sealing and stamping solutions, designs and manufactures gaskets, seals, and fabrications.” Source: RevenueBase Database · checked Sep 30, 2026
18	State Seal Company	Partial evidence	Chandler, AZ, United StatesHQ checked Sep 30, 2026	51-200	66 contacts →
	Partial evidence “State Seal Company is a manufacturer and distributor of a comprehensive range of both standard and custom designed seals, gaskets and converted products.” Source: RevenueBase Database · checked Sep 30, 2026
19	Hercules OEM	Partial evidence	Winston-salem, NC, United StatesHQ checked Sep 30, 2026	51-200	64 contacts →
	Partial evidence “Custom and Standard Seals, Products and Solutions Our knowledgeable team at Hercules OEM provides engineering design solutions for a diverse group of markets and applications.” Source: RevenueBase Database · checked Sep 30, 2026
20	VRC Engineered Solutions	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 30, 2026	501-1,000	64 contacts →
	Indirect evidence “VRC Engineered Solutions (VRC) is a leading value-added manufacturer of custom molded rubber, plastic, and sealing components serving customers primarily in the aerospace and…” Source: RevenueBase Database · checked Sep 30, 2026
21	Cometic Gasket, INC	Strong evidence	Concord Twp, OH, United StatesHQ checked Sep 30, 2026	51-200	62 contacts →
	Strong evidence “Cometic Gasket, Inc, is a leading worldwide supplier of shelf-stock, custom and short-run gaskets for the performance, automotive, powersports, original equipment and…” Source: RevenueBase Database · checked Sep 30, 2026
22	Magnetic Seal, LLC	Partial evidence	Warren, RI, United StatesHQ checked Sep 30, 2026	51-200	48 contacts →
	Partial evidence “Our mission is to find better ways to generate sustained success for our customers, team members and suppliers by continually advancing our engineering, quality and manufacturing…” Source: RevenueBase Database · checked Sep 30, 2026
23	Lauren Manufacturing, LLC	Partial evidence	New Philadelphia, OH, United StatesHQ checked Sep 30, 2026	201-500	47 contacts →
	Partial evidence “With more than forty years of polymer seal and gasket experience, Lauren Mfg is well qualified as your single, integrated source for high-tech molded and extruded polymer…” Source: RevenueBase Database · checked Sep 30, 2026
24	Marco Rubber & Plastics	Indirect evidence	Seabrook, NH, United StatesHQ checked Sep 30, 2026	51-200	45 contacts →
	Indirect evidence “At Marco Rubber & Plastics, we are experts in solving complex sealing challenges, and we never settle for anything but the right sealing solution for our customers.” Source: RevenueBase Database · checked Sep 30, 2026
25	Seal Company	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 30, 2026	51-200	42 contacts →
	Indirect evidence “Solving sealing challenges for over 50 years worldwide.” 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: automotive seal suppliers. 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 automotive seal suppliers.
Partial evidence: Its own public description names part of automotive seal suppliers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name automotive seal suppliers. 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 207 automotive seal suppliers based in the United States

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Automotive seal suppliers based in the United States at a glance

As of Sep 30, 2026

31.6%Verified-email coverage

27.8Average contacts per company

11-50Median size (employees)

3.4%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 207 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 automotive seal suppliers, 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 “automotive seal suppliers”. 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 automotive seal suppliers), 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 automotive seal suppliers, 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, 1,814 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 automotive seal suppliers, 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 automotive seal suppliers are there based in the United States?

RevenueBase identified 207 automotive seal suppliers 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?

Henniges Automotive, headquartered in Auburn Hills, tops this list with the largest team on record.

Which city has the most automotive seal suppliers?

Houston leads with 7 headquartered companies, followed by Fort Wayne (4) and Tulsa (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 1,814 verified decision-maker contacts tracked across these 207 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.