Company lists · Data refreshed September 2026

Top 25 Rubber diaphragm manufacturers worldwide

Name: Rubber diaphragm manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 294 companies tracked

RevenueBase identified 294 rubber diaphragm manufacturers worldwide as of September 2026 and tracks 2,682 professional contacts across them, including 621 with verified work emails and 0 with mobile numbers. India is the largest market and Mumbai the largest hub.

This list covers rubber diaphragm 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 rubber diaphragm 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

294Companies

2,682Contacts tracked

621Verified emails

0Mobile numbers

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The 25 largest rubber diaphragm manufacturers worldwide

Ranked by team size

Top 25 of 294 rubber diaphragm manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to rubber diaphragm 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	Rubber & Gasket Company Of America, INC	Partial evidence	Memphis, TN, United StatesHQ checked Sep 17, 2026	51-200	155 contacts →
	Partial evidence “RGA is an industrial rubber distributor and fabricator.” Source: RevenueBase Database · checked Sep 17, 2026
2	Autotravi	Indirect evidence	Caxias Do Sul, BrazilHQ checked Sep 17, 2026	201-500	136 contacts →
	Indirect evidence “A Autotravi atua no mercado nacional e internacional desde 1945, exportando para mais de 20 países, destacando-se na fabricação de borrachas para vedações automotivas e…” Source: RevenueBase Database · checked Sep 17, 2026
3	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
4	Kesaria Rubber Industries Pvt. LTD	Indirect evidence	Gurgaon, IndiaHQ checked Sep 17, 2026	201-500	108 contacts →
	Indirect evidence “Started in a small rented place with a workforce of only 5 people under the leadership of Mr.” Source: RevenueBase Database · checked Sep 17, 2026
5	Seal & Design INC	Indirect evidence	Clarence, NY, United StatesHQ checked Sep 17, 2026	51-200	95 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
6	Ebco INC	Partial evidence	Elgin, IL, United StatesHQ checked Sep 17, 2026	201-500	78 contacts →
	Partial evidence “Ebco is a world class supplier of engineered rubber products for industrial applications.” Source: RevenueBase Database · checked Sep 17, 2026
7	Precision Associates, INC	Strong evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	201-500	70 contacts →
	Strong evidence “Precision Associates, Inc.(PAI) is a leading American manufacturer of high-performance sealing solutions and precision-molded rubber products, including USP Class VI and…” Source: RevenueBase Database · checked Sep 17, 2026
8	VRC Engineered Solutions	Strong evidence	Milwaukee, WI, United StatesHQ checked Sep 17, 2026	501-1,000	64 contacts →
	Strong 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 17, 2026
9	Diacom Corporation	Indirect evidence	Amherst, NH, United StatesHQ checked Sep 17, 2026	51-200	54 contacts →
	Indirect evidence “Diacom Corporation is a U.S.” Source: RevenueBase Database · checked Sep 17, 2026
10	WARCO	Partial evidence	Orange, CA, United StatesHQ checked Sep 17, 2026	201-500	50 contacts →
	Partial evidence “West American Rubber Company has been manufacturing quality rubber products in the USA for Industry and the Military for over 110 years.” Source: RevenueBase Database · checked Sep 17, 2026
11	Novotema	Partial evidence	Villongo, ItalyHQ checked Sep 17, 2026	51-200	49 contacts →
	Partial evidence “At Novotema we manufacture fully customized elastomeric sealing solutions: we assist the customer throughout the whole process, from the co-design of the gasket to the…” Source: RevenueBase Database · checked Sep 17, 2026
12	Holz Rubber Company	Partial evidence	Lodi, CA, United StatesHQ checked Sep 17, 2026	51-200	47 contacts →
	Partial evidence “Holz Rubber Company offers solutions to help your growing business.” Source: RevenueBase Database · checked Sep 17, 2026
13	Ucal Polymer Industries LTD	Indirect evidence	Puducherry (pondicherry), IndiaHQ checked Sep 17, 2026	11-50	42 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
14	Vallair Airfluid Bombas, Compressores, Instrumentação E Válvulas	Indirect evidence	São Paulo, BrazilHQ checked Sep 17, 2026	11-50	39 contacts →
	Indirect evidence “A Vallair desde 1987 é uma empresa especializada e focada em produtos que utilizam princípios de funcionamento baseados em diafragmas dos mais diversos tipos, formatos e materiais.” Source: RevenueBase Database · checked Sep 17, 2026
15	Lav.El Gomma S.R.L	Indirect evidence	Cologne, GermanyHQ checked Sep 17, 2026	51-200	38 contacts →
	Indirect evidence “LAV.EL.” Source: RevenueBase Database · checked Sep 17, 2026
16	Microjuntas	Indirect evidence	Joinville, United StatesHQ checked Sep 17, 2026	201-500	32 contacts →
	Indirect evidence “Somos uma empresa especializada em moldados de borracha e juntas de precisão.” Source: RevenueBase Database · checked Sep 17, 2026
17	Specification Rubber Products, INC	Strong evidence	Alabaster, AL, United StatesHQ checked Sep 17, 2026	51-200	29 contacts →
	Strong evidence “Since 1968, Specification Rubber Products has been a manufacturer of rubber components for the waterworks industry.” Source: RevenueBase Database · checked Sep 17, 2026
18	Plastiveda Vedações Industriais	Indirect evidence	Valinhos, BrazilHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Há mais de três décadas, mantemos a tradição de inovar e trazer qualidade para o mercado de vedações industriais.” Source: RevenueBase Database · checked Sep 17, 2026
19	Timco Rubber Products, INC	Partial evidence	Berea, OH, United StatesHQ checked Sep 17, 2026	11-50	27 contacts →
	Partial evidence “At Timco Rubber, we bridge the gap between the drawing board and production.” Source: RevenueBase Database · checked Sep 17, 2026
20	Insaplex	Indirect evidence	Chennai, IndiaHQ checked Sep 17, 2026	51-200	26 contacts →
	Indirect evidence “INSAPLEX, specializing in High-Performance Polymers, was founded in 2009 with a clear vision – to craft high-quality mechanical products tailored for various industries.” Source: RevenueBase Database · checked Sep 17, 2026
21	Eagle Gasket And Packing CO	Partial evidence	Tomball, TX, United StatesHQ checked Sep 17, 2026	51-200	21 contacts →
	Partial evidence “Eagle Gasket has been a leading manufacturer of gaskets, industrial seals, and compression-molded plastics for 30 years.” Source: RevenueBase Database · checked Sep 17, 2026
22	Rahco Rubber, INC	Strong evidence	Des Plaines, IL, United StatesHQ checked Sep 17, 2026	51-200	18 contacts →
	Strong evidence “At Rahco Rubber, we manufacturer custom-engineered, high-precision rubber parts, components and seals for OEMs and their suppliers.” Source: RevenueBase Database · checked Sep 17, 2026
23	Rora SRL	Partial evidence	Castelli Calepio, ItalyHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “For over 25 years, we have been designing and manufacturing custom technical rubber seals for multiple industries: automotive, medical, aerospace, hydrogen, thermal, and aesthetic…” Source: RevenueBase Database · checked Sep 17, 2026
24	Tumedei SPA	Partial evidence	Ala, ItalyHQ checked Sep 17, 2026	51-200	17 contacts →
	Partial evidence “OGGI, TUMEDEI Spa – Gulf Rubber Europe fornisce soluzioni di prodotti in tecnopolimeri a livello internazionale ed è leader nella progettazione e produzione di componenti in gomma…” Source: RevenueBase Database · checked Sep 17, 2026
25	Torri Guarnizioni Industriali S.R.L	Indirect evidence	Capriolo, ItalyHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “Founded in 1973 by Severino Torri, Torri Industrial Gaskets occupied at the beginning a small shed of 300 square meters, with a single injection molding machine.” 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: rubber diaphragm 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 rubber diaphragm manufacturers.
Partial evidence: Its own public description names part of rubber diaphragm manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rubber diaphragm 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 294 rubber diaphragm manufacturers worldwide

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Rubber diaphragm manufacturers worldwide at a glance

As of Sep 17, 2026

23.2%Verified-email coverage

9.1Average contacts per company

11-50Median size (employees)

4.8%Largest-city concentration · Mumbai

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

115

51-200

201-500

501-1,000

1,001-5,000

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 rubber diaphragm 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: 4 countries, largest first: India, the United States, Brazil, Italy. Country and city lists for rubber diaphragm manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “rubber diaphragm 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 rubber diaphragm 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 rubber diaphragm 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, 621 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.

Rubber diaphragm manufacturers by location

4 lists · largest first

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

Countries

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 rubber diaphragm 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 rubber diaphragm manufacturers are there worldwide?

RevenueBase identified 294 rubber diaphragm 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?

Rubber & Gasket Company Of America, INC, headquartered in Memphis, tops this list with the largest team on record.

Which country has the most rubber diaphragm manufacturers?

India leads with 132 companies, followed by the United States (95) and Brazil (40). Every rubber diaphragm manufacturers list by country and city is linked on this page.

Which city has the most rubber diaphragm manufacturers?

Mumbai leads with 14 headquartered companies, followed by Sao Paulo (13) and Ahmedabad (11).

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 621 verified decision-maker contacts tracked across these 294 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.