Company lists · Data refreshed September 2026

Top 25 O-ring manufacturers worldwide

Name: O-ring manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 3,145 companies tracked

RevenueBase identified 3,145 o-ring manufacturers worldwide as of September 2026 and tracks 55,747 professional contacts across them, including 16,087 with verified work emails and 0 with mobile numbers. India is the largest market and Mumbai the largest hub.

This list covers o-ring manufacturers worldwide, 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. Country and city lists for o-ring manufacturers follow the table.

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

3,145Companies

55,747Contacts tracked

16,087Verified emails

0Mobile numbers

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The 25 largest o-ring manufacturers worldwide

Ranked by team size

Top 25 of 3,145 o-ring manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to o-ring 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	Freudenberg Sealing Technologies	Indirect evidence	Weinheim, GermanyHQ checked Sep 17, 2026	10001+	4,442 contacts →
	Indirect evidence “Freudenberg Sealing Technologies (FST) is the world’s market and technology leader in sealing technology.” Source: RevenueBase Database · checked Sep 17, 2026
2	Eagleburgmann	Indirect evidence	Wolfratshausen, GermanyHQ checked Sep 17, 2026	5,001-10,000	3,062 contacts →
	Indirect evidence “EagleBurgmann, a joint venture of the German Freudenberg Group and the Japanese Eagle Industry Group, is one of the internationally leading companies for industrial sealing…” Source: RevenueBase Database · checked Sep 17, 2026
3	Trelleborg Sealing Solutions	Partial evidence	Stuttgart, GermanyHQ checked Sep 17, 2026	5,001-10,000	2,751 contacts →
	Partial evidence “We are one of the world’s leading developers, manufacturers and suppliers of precision seals, bearings and custom-molded polymer components.” Source: RevenueBase Database · checked Sep 17, 2026
4	ERIKS	Indirect evidence	Alkmaar, NetherlandsHQ checked Sep 17, 2026	1,001-5,000	1,473 contacts →
	Indirect evidence “ERIKS, your industrial component expert We are experts in things that often have the biggest impact on the performance of industrial products and processes, especially sealings…” Source: RevenueBase Database · checked Sep 17, 2026
5	Greene Tweed	Partial evidence	Lansdale, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,129 contacts →
	Partial evidence “Greene Tweed is a leading global manufacturer of high-performance thermoplastics, composites, seals, and engineered components that outperform and outlast in the world’s harshest…” Source: RevenueBase Database · checked Sep 17, 2026
6	SABÓ	Indirect evidence	Mogi Mirim, BrazilHQ checked Sep 17, 2026	1,001-5,000	829 contacts →
	Indirect evidence “A leader in the manufacturing of oil seals, gaskets and rubber hoses.” Source: RevenueBase Database · checked Sep 17, 2026
7	Aesseal	Partial evidence	Rotherham, United KingdomHQ checked Sep 17, 2026	1,001-5,000	592 contacts →
	Partial evidence “AESSEAL designs and manufactures sealing solutions for a sustainable future.” Source: RevenueBase Database · checked Sep 17, 2026
8	Teadit Group	Indirect evidence	Rio De Janeiro, United StatesHQ checked Sep 17, 2026	1,001-5,000	561 contacts →
	Indirect evidence “Teadit® is recognized as a world leader in the development and manufacturing of innovative fluid sealing products used throughout various industrial markets including Refining…” Source: RevenueBase Database · checked Sep 17, 2026
9	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
10	Technetics Group	Indirect evidence	Columbia, SC, United StatesHQ checked Sep 17, 2026	501-1,000	418 contacts →
	Indirect 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
11	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
12	Roop Polymers LTD	Partial evidence	Gurugram, IndiaHQ checked Sep 17, 2026	1,001-5,000	406 contacts →
	Partial evidence “Roop Group with having 45 years of rich experience in the automotive industry,RPL today is a world class manufacturer of Moulded and Extruded Rubber & plastic parts for Automotive…” Source: RevenueBase Database · checked Sep 17, 2026
13	Freudenberg Flow Technologies	Partial evidence	Wolfratshausen, GermanyHQ checked Sep 17, 2026	5,001-10,000	391 contacts →
	Partial evidence “Freudenberg Flow Technologies is a leading international manufacturer of industrial sealing technology.” Source: RevenueBase Database · checked Sep 17, 2026
14	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
15	ALP Overseas PVT LTD	Indirect evidence	Gurgaon, IndiaHQ checked Sep 17, 2026	1,001-5,000	317 contacts →
	Indirect evidence “Providing world class sealing systems since 1984 in India and across the world.” Source: RevenueBase Database · checked Sep 17, 2026
16	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
17	Smalley	Partial evidence	Lake Zurich, IL, United StatesHQ checked Sep 17, 2026	501-1,000	298 contacts →
	Partial evidence “As the inventor of the edgewound wave spring and with over 100 years of manufacturing excellence, Smalley is the Engineer’s Choice® in providing wave springs, retaining rings, and…” Source: RevenueBase Database · checked Sep 17, 2026
18	Airboss Of America	Indirect evidence	Newmarket, ON, CanadaHQ checked Sep 17, 2026	1,001-5,000	296 contacts →
	Indirect evidence “AirBoss of America Corp.” Source: RevenueBase Database · checked Sep 17, 2026
19	Minnesota Rubber And Plastics Trelleborg Sealing Solutions	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	257 contacts →
	Partial 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
20	Flexfab, LLC	Indirect evidence	Hastings, MI, United StatesHQ checked Sep 17, 2026	501-1,000	251 contacts →
	Indirect evidence “Who is Flexfab?” Source: RevenueBase Database · checked Sep 17, 2026
21	Wolverine Advanced Materials	Partial evidence	Dearborn, MI, United StatesHQ checked Sep 17, 2026	501-1,000	246 contacts →
	Partial evidence “Wolverine Advanced Materials is a leading developer and manufacturer of high-performance materials.” Source: RevenueBase Database · checked Sep 17, 2026
22	Bony Polymers Private Limited	Indirect evidence	Faridabad, IndiaHQ checked Sep 17, 2026	201-500	217 contacts →
	Indirect evidence “Bony Polymers is a reputed supplier to OEMs in the field of Rubber Moulded parts.” Source: RevenueBase Database · checked Sep 17, 2026
23	Kastaş Sızdırmazlık Teknolojileri	Indirect evidence	Izmir, TürkiyeHQ checked Sep 17, 2026	501-1,000	215 contacts →
	Indirect evidence “Kastaş, akışkan gücü sızdırmazlığında yüksek performanslı ürünleri, inovatif sızdırmazlık çözümleri ve global satış ağı ile dünyanın önde gelen üreticilerinden biridir.” Source: RevenueBase Database · checked Sep 17, 2026
24	Nitriflex S A Ind. E COM	Indirect evidence	Duque De Caxias, BrazilHQ checked Sep 17, 2026	201-500	213 contacts →
	Indirect evidence “Presente no mercado há mais de 40 anos, a Nitriflex RJ tem orgulho de ser genuinamente brasileira e contar com uma extensa linha de elastômeros para diversas aplicações, sempre…” Source: RevenueBase Database · checked Sep 17, 2026
25	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

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: o-ring 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 o-ring manufacturers.
Partial evidence: Its own public description names part of o-ring manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name o-ring 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 3,145 o-ring manufacturers worldwide

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O-ring manufacturers worldwide at a glance

As of Sep 17, 2026

28.9%Verified-email coverage

17.7Average contacts per company

11-50Median size (employees)

3.1%Largest-city concentration · Mumbai

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

913

11-50

1,197

51-200

735

201-500

154

501-1,000

1,001-5,000

5,001-10,000

10001+

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 o-ring 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.
Coverage: 16 countries, largest first: India, the United States, Brazil, Germany, Italy, the United Kingdom, Türkiye, France, Spain, the Netherlands and 6 more. Country and city lists for o-ring manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “o-ring 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 o-ring 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 o-ring manufacturers, and records with no verified work email.
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, 16,087 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.

O-ring manufacturers by location

17 lists · largest first

Every O-ring manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

O-ring manufacturers based in Mumbai, India99

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 o-ring 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 o-ring manufacturers are there worldwide?

RevenueBase identified 3,145 o-ring manufacturers worldwide 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?

Freudenberg Sealing Technologies, headquartered in Weinheim, tops this list with the largest team on record.

Which country has the most o-ring manufacturers?

India leads with 828 companies, followed by the United States (695) and Brazil (328). Every o-ring manufacturers list by country and city is linked on this page.

Which city has the most o-ring manufacturers?

Mumbai leads with 99 headquartered companies, followed by Sao Paulo (62) and Pune (49).

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 16,087 verified decision-maker contacts tracked across these 3,145 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.