Company lists · Data refreshed November 2026

Top 25 Valve testing and certification companies worldwide

RevenueBase identified 522 company matches for valve testing and certification companies worldwide as of November 2026 and tracks 21,094 professional contacts across them, including 5,780 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for valve testing and certification companies 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 6, 2026. Country and city lists for valve testing and certification companies 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 6, 2026 How this list was built
522Companies
21,094Contacts tracked
5,780Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest valve testing and certification companies worldwide

Ranked by team size
Top 25 of 522 company matches for valve testing and certification companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchCologne, GermanyHQ recorded Nov 6, 202610001+8,583 contacts →

Exact match

“Neutral, independent third party For more than 150 years, TÜV Rheinland has stood for ensuring quality, safety, and efficiency in conjunction with people, the environment, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 6, 20265,001-10,0004,533 contacts →

Exact match

“The Element Materials Technology Group is one of the world’s leading global providers of testing, inspection, and certification services for a diverse range of products…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchGeismar, United StatesHQ recorded Nov 6, 2026201-500539 contacts →

Exact match

“DelVal Flow Controls is a global manufacturer of flow control solutions, including ball valves, butterfly valves, and automation products, serving the oil and gas, power, water…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchThane, IndiaHQ recorded Nov 6, 202651-200277 contacts →

Exact match

“Dembla Valves Ltd was incorporated in 1989, an ISO 9001: 2015, API Certified professional organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBurnaby, OH, CanadaHQ recorded Nov 6, 202651-200144 contacts →

Exact match

“QAI is an independent third-party testing, inspection and certification organization which serves industries such as Building products, Electrical, Electronic, Commercial vehicles…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchToronto, OH, CanadaHQ recorded Nov 6, 202651-200131 contacts →

Exact match

“Product Certification, Testing, Field Evaluation and Field Certification services, including pre-certification review, testing, evaluation, and certifications for electrical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSouth Plainfield, NJ, United StatesHQ recorded Nov 6, 2026201-500122 contacts →

Exact match

“AEIS, LLC is a testing, inspection, and certification (TIC) agency that increases quality and safety outcomes for major infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchShah Alam, MalaysiaHQ recorded Nov 6, 202651-200115 contacts →

Exact match

“MIR VALVE is a top-tier Malaysian manufacturer offering the complete range of ball, gate and swing check valves serving the international oil & gas, petrochemical, refining and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchErfurt, GermanyHQ recorded Nov 6, 2026501-1,00093 contacts →

Exact match

“Der TÜV Thüringen steht seit mehr als drei Jahrzehnten für Qualität und Sicherheit aus dem Herzen Deutschlands.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202651-20084 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMostoles, SpainHQ recorded Nov 6, 202651-20084 contacts →

Exact match

“CEISLAB, is a Spanish Company with a great deal of experience an technical knowledge in the conformity assessment field, as well as in developing and conducting tests and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBroken Arrow, United StatesHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“Welcome to Total Valve Systems where we are celebrating 40 years of strong history and growth in servicing customers around the globe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBayraklı, TürkiyeHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“NETA Sertifikasyon & Teknik Kontrol, endüstriyel tesisler ve üretim sektörüne yönelik muayene, belgelendirme ve teknik kontrol hizmetleri sunan mühendislik kuruluşudur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRijswijk, TX, NetherlandsHQ recorded Nov 6, 202651-20069 contacts →

Exact match

“Ventil Test Equipment designs, manufactures, and markets engineered test benches for the valve repair and manufacturing industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“Global Inspection Services (GIS) is a high performance inspection, testing & certification organization that provides services for EPC, Owners, Vendors, among other clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchJacksonville, SC, United StatesHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Flotech provides valve repair, tube repairs, safety valve certification, valve actuation, control valve repair and new valves from locations throughout the US Southeast.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchYenimahalle / Ankara, TürkiyeHQ recorded Nov 6, 202651-20061 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-20054 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“As our name states, we are "The Valve Service Specialists".”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSalt Lake City, United StatesHQ recorded Nov 6, 20261,001-5,00050 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchConcepción, ChileHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“SAPRI, es una Empresa de Servicios y Asesoría Profesional para la Industria, localizada en la ciudad de Concepción, la cual presta servicios de Ingeniería, Puesta en Marcha (Área…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHouston, AB, United StatesHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“Gulf Coast Modification provides extensive modifications, cleaning, coating, inspection and testing services for industrial valves.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchZaragoza, SpainHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“Ringo Válvulas is wholly owned subsidiary of the Samson AG group of companies and is located in the modern “Empresarium” industrial estate in Zaragoza (Spain), established in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchKristiansund, NorwayHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“offshore equipment maintenance”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNarsapur, IndiaHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“EFCO Maschinenbau India Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 522 valve testing and certification companies worldwide

See the full list, filter by size, metro and specialty, and access 5,780 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Valve testing and certification companies worldwide at a glance

As of Nov 6, 2026
27.4%Verified-email coverage
40.4Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
186
11-50
187
51-200
85
201-500
34
501-1,000
11
1,001-5,000
7
5,001-10,000
3
10001+
4

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 valve testing and certification companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “valve testing and certification companies” 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 5,780 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 6, 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.

Valve testing and certification companies by location

4 lists · largest first

Every Valve testing and certification companies 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 “valve testing and certification companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many valve testing and certification companies are there worldwide?

RevenueBase identified 522 company matches for valve testing and certification companies 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?

TÜV Rheinland Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most valve testing and certification companies?

The United States leads with 77 companies, followed by India (38) and Türkiye (27). Every valve testing and certification companies list by country and city is linked on this page.

Which city has the most valve testing and certification companies?

Houston leads with 10 company records, followed by Istanbul (6) and Dubai (5).

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 5,780 professional contacts with verified work emails tracked across these 522 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 522 valve testing and certification companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.