Company lists · Data refreshed September 2026
Top 25 Ultra high vacuum valve manufacturers worldwide
RevenueBase identified 254 ultra high vacuum valve manufacturers worldwide as of September 2026 and tracks 7,354 professional contacts across them, including 1,660 with verified work emails. The United States is the largest market and Bangalore the largest hub.
This list covers ultra high vacuum valve 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 30, 2026. Country and city lists for ultra high vacuum valve 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.
The 25 largest ultra high vacuum valve manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,597 contacts → | ||||
Strong evidence “We change the world with vacuum solutions – that is our purpose as the world’s leading supplier of high-end vacuum valves.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,151 contacts → | ||||
Partial evidence “L&T Valves • Global leader in industrial valves with an experience of 6 decades • Subsidiary of Larsen & Toubro, USD 21 billion technology and engineering conglomerate • Over 20…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 681 contacts → | ||||
Partial evidence “We have been delivering vacuum pumps, systems, accessories, services and tailor-made vacuum solutions for almost 170 years.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 394 contacts → | ||||
Indirect evidence “The Kurt J.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 331 contacts → | ||||
Strong evidence “VACCO Industries is a world-class designer and manufacturer of specialty valves, metal filters, and advanced fluid control products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 194 contacts → | ||||
Indirect evidence “Since 1975, MDC has been a world leader in delivering the performance, precision and purity to meet the most stringent manufacturing requirements of customers in the research…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 102 contacts → | ||||
Indirect evidence “VICI Valco Instruments Co.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 94 contacts → | ||||
Strong evidence “HEROSE is one of Europe’s leading manufacturers of valves for industrial applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 79 contacts → | ||||
Partial evidence “VACGEN is the world's premier supplier of vacuum components to industry, education, research and development, and the scientific community.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 72 contacts → | ||||
Strong evidence “Manufacturer of high and ultra-high vacuum components since 1965, ANCORP offers an extensive line of vacuum hardware, valves, chambers, and custom fabrications to researchers…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 70 contacts → | ||||
Strong evidence “Carten are global leaders in the design, manufacture and supply of High Performance Valves and Flow Solutions to high technology and demanding process sectors including Biotech…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 67 contacts → | ||||
Indirect evidence “Precision Fluid Controls (PFC), Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 65 contacts → | ||||
Strong evidence “Dynavac manufactures high vacuum systems for thin film deposition, space simulation and custom-engineered applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 64 contacts → | ||||
Strong evidence “SEGAULT designs and manufactures for more than 90 years valves answering extreme service conditions in nuclear and petrochemical fields but also for aeronautical test benches.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 54 contacts → | ||||
Partial evidence “VACUUBRAND Impressum: Our products are characterized by more than 50 years of experience in vacuum technology.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 45 contacts → | ||||
Partial evidence “Thermovac Aerospace Pvt Ltd is an Indian company that specializes in the design and manufacturing of high-technology aerospace components and systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 37 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 35 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 35 contacts → | ||||
Indirect evidence “STREICHER, spol.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 28 contacts → | ||||
Indirect evidence “Instrumentation & Controls Co.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 28 contacts → | ||||
Strong evidence “Duniway Stockroom Corporation, founded by Ralph Duniway in 1976, is a manufacturer and distributor of Ultra-high vacuum equipment and components.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 27 contacts → | ||||
Strong evidence “Formed in 1902, Broady Flow Control Limited is a world leading valve manufacturing company and has operated as a specialist valve manufacturer for over 75 years and a key supplier…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 25 contacts → | ||||
Partial evidence “Founded in 1921 and based in France, Valco Group representing the leading specialised valve brands : SNRI, VVS and MALBRANQUE brands.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 23 contacts → | ||||
Strong evidence “Allectra is a leading manufacturer and supplier of HV (high vacuum) and UHV (ultra high vacuum) components including custom items.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 23 contacts → | ||||
Partial evidence “Vacuum Techniques Pvt.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
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: ultra high vacuum valve 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 ultra high vacuum valve manufacturers.
- Partial evidence
- Its own public description names part of ultra high vacuum valve manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name ultra high vacuum valve 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 254 ultra high vacuum valve manufacturers worldwide
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Ultra high vacuum valve manufacturers worldwide at a glance
As of Sep 30, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 ultra high vacuum valve 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
- Every country. Country and city lists for ultra high vacuum valve manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “ultra high vacuum valve 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 ultra high vacuum valve 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 ultra high vacuum valve 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, 1,660 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.
Ultra high vacuum valve manufacturers by location
2 lists · largest firstEvery Ultra high vacuum valve 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 ultra high vacuum valve 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 ultra high vacuum valve manufacturers are there worldwide?
RevenueBase identified 254 ultra high vacuum valve 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?
VAT Group, headquartered in Gallen, tops this list with the largest team on record.
Which country has the most ultra high vacuum valve manufacturers?
The United States leads with 53 companies, followed by Germany (28). Every ultra high vacuum valve manufacturers list by country and city is linked on this page.
Which city has the most ultra high vacuum valve manufacturers?
Bangalore leads with 12 headquartered companies, followed by Fremont (3) and Hastings (3).
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 1,660 verified decision-maker contacts tracked across these 254 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.