Company lists · Data refreshed September 2026

Top 25 Mechanical seals manufacturers based in the United States

Name: Mechanical seals 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 325 companies tracked

RevenueBase identified 325 mechanical seals manufacturers headquartered in the United States as of September 2026 and tracks 30,289 professional contacts across them, including 12,959 with verified work emails. Houston is the largest hub.

This list covers mechanical seals 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

325Companies

30,289Contacts tracked

12,959Verified emails

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The 25 largest mechanical seals manufacturers based in the United States

Ranked by team size

Top 25 of 325 mechanical seals 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 mechanical seals 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	Flowserve Corporation	Strong evidence	Irving, TX, United StatesHQ checked Sep 17, 2026	10001+	13,317 contacts →
	Strong evidence “Flowserve is one of the world's largest manufacturers of pumps, valves and seals with over employees across 50 countries.” Source: RevenueBase Database · checked Sep 17, 2026
2	Cooper Standard	Indirect evidence	Northville, MI, United StatesHQ checked Sep 17, 2026	10001+	6,851 contacts →
	Indirect evidence “Cooper Standard, headquartered in Northville, Mich, with locations in 21 countries, is a leading global supplier of sealing and fluid handling systems and components.” Source: RevenueBase Database · checked Sep 17, 2026
3	A.W. Chesterton Company	Indirect evidence	Groveland, MA, United StatesHQ checked Sep 17, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Chesterton is a leading international provider of customized programs and solutions that combine expert hands-on service and support with a comprehensive line of industrial fluid…” Source: RevenueBase Database · checked Sep 17, 2026
4	Garlock Family Of Companies	Indirect evidence	Palmyra, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	526 contacts →
	Indirect evidence “Garlock provides solutions that seal the most demanding fluid-handling equipment and processes, with more than sealing solutions for a diverse range of industries world-wide: •…” Source: RevenueBase Database · checked Sep 17, 2026
5	Technetics Group	Partial evidence	Columbia, SC, United StatesHQ checked Sep 17, 2026	501-1,000	418 contacts →
	Partial evidence “Technetics Group is a globally trusted source for highly engineered components, seals, assemblies, and sub-systems custom-designed for high performance and extreme applications in…” Source: RevenueBase Database · checked Sep 17, 2026
6	Lamons	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 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 17, 2026
7	Flexitallic	Partial evidence	United StatesHQ checked Sep 17, 2026	1,001-5,000	390 contacts →
	Partial evidence “Flexitallic is the market leader in the manufacture and supply of static sealing solutions, delivering high quality industrial gaskets and providing support and engineering…” Source: RevenueBase Database · checked Sep 17, 2026
8	Utex Industries INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	304 contacts →
	Indirect evidence “Utex Industries, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
9	GHX Industrial, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	261 contacts →
	Indirect evidence “Headquartered in Houston, TX, GHX Industrial LLC is a value added distributor that provides fluid sealing (gaskets), fluid transfer (hoses) and other products to a variety of…” Source: RevenueBase Database · checked Sep 17, 2026
10	Minnesota Rubber And Plastics Trelleborg Sealing Solutions	Strong evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	257 contacts →
	Strong evidence “Minnesota Rubber & Plastics (MRP), now part of Trelleborg is one of the world’s leading developers, manufacturers, and suppliers of precision seals, bearings, and custom-molded…” Source: RevenueBase Database · checked Sep 17, 2026
11	Trelleborg Engineered Coated Fabrics	Indirect evidence	Rutherfordton, NC, United StatesHQ checked Sep 17, 2026	1,001-5,000	210 contacts →
	Indirect evidence “For general inquiries, please email ECF@Trelleborg.com.” Source: RevenueBase Database · checked Sep 17, 2026
12	Dover Precision Components	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	199 contacts →
	Indirect evidence “Dover Precision Components delivers performance-critical solutions for rotating and reciprocating machinery through the Waukesha Bearings, Bearings Plus, Inpro/Seal, FW Murphy and…” Source: RevenueBase Database · checked Sep 17, 2026
13	Waukesha Bearings Corporation	Strong evidence	Pewaukee, WI, United StatesHQ checked Sep 17, 2026	501-1,000	199 contacts →
	Strong evidence “Waukesha Bearings® is a leading designer and manufacturer of engineered hydrodynamic bearings, active magnetic bearing systems and seals for high-performing turbomachinery in oil…” Source: RevenueBase Database · checked Sep 17, 2026
14	Sur-Seal, LLC	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 17, 2026	201-500	153 contacts →
	Indirect evidence “Sur-Seal goes the extra mile to solve the toughest challenges around the world of sealing.” Source: RevenueBase Database · checked Sep 17, 2026
15	Hercules Sealing Products	Partial evidence	Clearwater, FL, United StatesHQ checked Sep 17, 2026	51-200	149 contacts →
	Partial evidence “Hercules® Sealing Products is a distributor of hydraulic and pneumatic cylinder repair seals, seal kits, metal working products, repair parts, and replacement cylinders for all…” Source: RevenueBase Database · checked Sep 17, 2026
16	Engineered Seal Products	Indirect evidence	Cedar Rapids, IA, United StatesHQ checked Sep 17, 2026	51-200	147 contacts →
	Indirect evidence “A 100% employee-owned company based in Cedar Rapids Iowa.” Source: RevenueBase Database · checked Sep 17, 2026
17	Flexaseal Engineered Seals And Systems, LLC	Strong evidence	Williston, VT, United StatesHQ checked Sep 17, 2026	201-500	133 contacts →
	Strong evidence “Flexaseal Engineered Seals and Systems, a trusted partner for premium mechanical seals and innovative sealing solutions, caters to diverse industrial sectors with expertise in…” Source: RevenueBase Database · checked Sep 17, 2026
18	Zatkoff Seals & Packings	Partial evidence	Farmington Hills, MI, United StatesHQ checked Sep 17, 2026	51-200	124 contacts →
	Partial evidence “Roger Zatkoff founded Zatkoff Seals & Packings in 1959.” Source: RevenueBase Database · checked Sep 17, 2026
19	Sealing Devices INC	Indirect evidence	Lancaster, NY, United StatesHQ checked Sep 17, 2026	201-500	115 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
20	Stein Seal Company	Strong evidence	Kulpsville, PA, United StatesHQ checked Sep 17, 2026	201-500	112 contacts →
	Strong evidence “Stein Seal Company is a Manufacturing Company engaged in the design, development, testing, and manufacturing of sophisticated mechanical shaft seals and precision-machined…” Source: RevenueBase Database · checked Sep 17, 2026
21	Inpro Seal LLC	Indirect evidence	Rock Island, IL, United StatesHQ checked Sep 17, 2026	51-200	107 contacts →
	Indirect evidence “Inpro/Seal delivers innovative bearing protection and process sealing solutions for a variety of rotating equipment in the chemical processing, food and beverage, HVAC, mining…” Source: RevenueBase Database · checked Sep 17, 2026
22	Press-Seal Corporation	Indirect evidence	Fort Wayne, IN, United StatesHQ checked Sep 17, 2026	51-200	104 contacts →
	Indirect evidence “Press-Seal Corporation is a third-generation family-owned business founded in 1954 in the Midwestern United States, from where we operate to this very day.” Source: RevenueBase Database · checked Sep 17, 2026
23	Aesseal INC	Strong evidence	Rockford, TN, United StatesHQ checked Sep 17, 2026	1,001-5,000	95 contacts →
	Strong 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 17, 2026
24	System Seals INC	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 17, 2026	51-200	88 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	APG	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	80 contacts →
	Partial evidence “Master Distributor & Manufacturer of fluid sealing and associated products to distribution and industry by providing value through product's availability and response time to our…” 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: mechanical seals 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 mechanical seals manufacturers.
Partial evidence: Its own public description names part of mechanical seals manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mechanical seals 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 325 mechanical seals manufacturers based in the United States

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Mechanical seals manufacturers based in the United States at a glance

As of Sep 17, 2026

42.8%Verified-email coverage

93.2Average contacts per company

11-50Median size (employees)

7.7%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

125

51-200

201-500

501-1,000

1,001-5,000

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 325 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 mechanical seals 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 “mechanical seals 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 mechanical seals 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 mechanical seals 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, 12,959 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.

Mechanical seals manufacturers by metro

Mechanical seals manufacturers in Houston25

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 mechanical seals 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 mechanical seals manufacturers are there based in the United States?

RevenueBase identified 325 mechanical seals 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?

Flowserve Corporation, headquartered in Irving, tops this list with the largest team on record.

Which city has the most mechanical seals manufacturers?

Houston leads with 25 headquartered companies, followed by Fort Wayne (6) and Tulsa (6).

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 12,959 verified decision-maker contacts tracked across these 325 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.