Company lists · Data refreshed November 2026

Top 25 Diaphragm packing suppliers worldwide

RevenueBase identified 108 company matches for diaphragm packing suppliers worldwide as of November 2026 and tracks 991 professional contacts across them, including 223 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for diaphragm packing suppliers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for diaphragm packing suppliers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
108Companies
991Contacts tracked
223Verified emails
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The 25 largest diaphragm packing suppliers worldwide

Ranked by team size
Top 25 of 108 company matches for diaphragm packing suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMumbai, IndiaHQ recorded Nov 5, 2026501-1,000162 contacts →

Exact match

“Leak Proof has made significant contributions to the Indian Process industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchAmherst, NH, United StatesHQ recorded Nov 5, 202651-20056 contacts →

Exact match

“Diacom Corporation is a U.S.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSão Paulo, BrazilHQ recorded Nov 5, 202611-5045 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSheffield, United KingdomHQ recorded Nov 5, 2026501-1,00043 contacts →

Exact match

“Vulcan Seals - a leading manufacturer and supplier of- Mechanical Seals - FEP/PFA Encapsulated 'O'-Rings & Seals - Gland Packing - Expanded PTFE Gasketing Global Presence…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchTulsa, TX, United StatesHQ recorded Nov 5, 202651-20043 contacts →

Exact match

“Solving sealing challenges for over 50 years worldwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchStaßfurt, TX, GermanyHQ recorded Nov 5, 202651-20037 contacts →

Exact match

“STASSKOL is a company of special purpose machinery manufacture.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchManchester, United KingdomHQ recorded Nov 5, 202651-20033 contacts →

Exact match

“JA Harrison, an Amcomri Group plc Company - World Class Supplier of Gaskets, Sealing, PTFE and Plastic Technologies J A Harrison & Co boasts an enviable manufacturing heritage…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchPontiac, MI, United StatesHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“Pumping Systems, Seals, & Lubricants in Pontiac, MI & Kenai, AK Helping Industry Succeed Since 1987 At Pro-Seal, we believe in American industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchKolkata, IndiaHQ recorded Nov 5, 2026201-50020 contacts →

Exact match

“At JD Jones, we believe that success comes from relentless focus on shared vision, innovation and execution.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchCedar Rapids, IA, United StatesHQ recorded Nov 5, 202611-5017 contacts →

Exact match

“In today’s marketplace, when buyers need to find someone to supply them with pump and valve packings, gasket and specialty seals, they will find many companies from which to…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchJohannesburg, South AfricaHQ recorded Nov 5, 202611-5017 contacts →

Exact match

“Nexus Seals was established in Kensington, Johannesburg, in 2002.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchPhoenix, AZ, United StatesHQ recorded Nov 5, 202611-5016 contacts →

Exact match

“Our motto is "May we serve you?" and we mean it!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchLockport, IL, United StatesHQ recorded Nov 5, 202611-5014 contacts →

Exact match

“Established in 1980, we continue to build on our 4 decades of excellent customer service in the Gasket, Packing and Mechanical Seal Industries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchTulsa, KS, United StatesHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“Crown Products, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchKollam, IndiaHQ recorded Nov 5, 20261-1012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchManchester, PA, United StatesHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“Allegheny York is a leading manufacturer and distributor of quality seals & packings for commercial, industrial & military applications.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchCarrum Downs, AustraliaHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“Founded in 1995, Sealing Solutions is an Australian Company that specialises in supplying and refurbishing sealing products.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchPrince George, VA, CanadaHQ recorded Nov 5, 202611-5010 contacts →

Exact match

“Macroseal, Inc is a full-line distributor and fabricator of fluid sealing products, located in Prince George, Virginia.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchMumbai, IndiaHQ recorded Nov 5, 2026201-5008 contacts →

Exact match

“SPITMAAN Group (also known as Champion Jointings) is built on a legacy of over 55 years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-508 contacts →

Exact match

“Industrial Packing and Seals is a leader in manufacturing, distribution, and repair of mechanical seals and packing.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchSt. Louis, IA, United StatesHQ recorded Nov 5, 202611-507 contacts →

Exact match

“Gaskets, expansion joints, Garlock, Teadit, Flexitallic, mechanical seals, mechanical packing, pumps and parts, and valves”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 5, 202651-2006 contacts →

Exact match

“Leak Proof has made significant contributions to the Indian Process industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchUnited StatesHQ recorded Nov 5, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchLarvik, NorwayHQ recorded Nov 5, 20261-103 contacts →

Exact match

“High quality compression packings and sealing solutions for all types of industries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 108 diaphragm packing suppliers worldwide

See the full list, filter by size, metro and specialty, and access 223 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Diaphragm packing suppliers worldwide at a glance

As of Nov 5, 2026
22.5%Verified-email coverage
9.2Average contacts per company
11-50Median size (employees)
3.7%Largest-city concentration · Houston
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
39
11-50
42
51-200
15
201-500
5
501-1,000
4
10001+
1

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for diaphragm packing suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “diaphragm packing suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 223 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Diaphragm packing suppliers by location

1 lists · largest first

Every Diaphragm packing suppliers 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “diaphragm packing suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many diaphragm packing suppliers are there worldwide?

RevenueBase identified 108 company matches for diaphragm packing suppliers worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Leak-Proof Engineering tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most diaphragm packing suppliers?

The United States leads with 34 companies. Every diaphragm packing suppliers list by country and city is linked on this page.

Which city has the most diaphragm packing suppliers?

Houston leads with 4 company records, followed by Kolkata (4) and Johannesburg (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 223 professional contacts with verified work emails tracked across these 108 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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 SmartSearch, 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.