Company lists · Data refreshed November 2026

Top 25 Oil and gas testing laboratories worldwide

RevenueBase identified 4,286 company matches for oil and gas testing laboratories worldwide as of November 2026 and tracks 117,641 professional contacts across them, including 24,216 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for oil and gas testing laboratories 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 4, 2026. Country and city lists for oil and gas testing laboratories 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 4, 2026 How this list was built
4,286Companies
117,641Contacts tracked
24,216Verified emails
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The 25 largest oil and gas testing laboratories worldwide

Ranked by team size
Top 25 of 4,286 company matches for oil and gas testing laboratories worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 4, 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 matchLuxembourgHQ recorded Nov 4, 202610001+12,649 contacts →

Exact match

“Since 1987, Eurofins has grown from one laboratory in Nantes, France to over staff across a network of independent companies in 59 countries, operating over 950 laboratories.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
2Exact matchSouth Jakarta, IndonesiaHQ recorded Nov 4, 20265,001-10,0005,839 contacts →

Exact match

“SUCOFINDO was established in 1956 as a joint venture company between the Government of the Republic of Indonesia and SGS, Geneve, Switzerland.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
3Exact matchCranbury, NJ, United StatesHQ recorded Nov 4, 20265,001-10,0003,737 contacts →

Exact match

“The AmSpec Group has been relied upon in the testing, inspection, and certification (TIC) sector for several decades.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
4Exact matchDubai, United Arab EmiratesHQ recorded Nov 4, 20261,001-5,0002,408 contacts →

Exact match

“OiLSERV is a provider of an expanding range of oilfield services, including well logging, well testing, production enhancement, drilling services, surface production management…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
5Exact matchMinneapolis, NC, United StatesHQ recorded Nov 4, 20261,001-5,0002,334 contacts →

Exact match

“Pace® Science and Technology Company makes the world a safer, healthier place.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
6Exact matchLancaster, PA, United StatesHQ recorded Nov 4, 20261,001-5,0001,676 contacts →

Exact match

“Eurofins Lancaster Laboratories is one of the largest commercial contract laboratories in the world providing comprehensive laboratory services in the pharmaceutical…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
7Exact matchMadrid, ItalyHQ recorded Nov 4, 202610001+1,442 contacts →

Exact match

“Applus+ is globally recognized across all phases of the oil and gas industry, including upstream, midstream, and downstream, both on land and at sea.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
8Exact matchEdmonton, CanadaHQ recorded Nov 4, 202610001+1,236 contacts →

Exact match

“One of the largest independent Asset Integrity companies.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
9Exact matchCalgary, QC, CanadaHQ recorded Nov 4, 20261,001-5,0001,126 contacts →

Exact match

“Since 1979, AGAT Laboratories has been empowering clients with trustworthy data and unmatched client relations.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
10Exact matchHouston, United StatesHQ recorded Nov 4, 20261,001-5,000957 contacts →

Exact match

“At CAMIN, we provide inspection, laboratory testing, and additive treatment solutions to the Petroleum Industry.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
11Exact matchSeville, SpainHQ recorded Nov 4, 2026501-1,000827 contacts →

Exact match

“AGQ Labs is one of the world's leading analytic laboratories and technological centers.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
12Exact matchSalt Lake City, United StatesHQ recorded Nov 4, 2026501-1,000807 contacts →

Exact match

“Nelson Labs is a global leader in microbiological and analytical chemistry testing and advisory services for the medical device and pharmaceutical industries.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
13Exact matchNavi Mumbai, IndiaHQ recorded Nov 4, 20261,001-5,000774 contacts →

Exact match

“We are committed to strengthening safety systems with the most reliable Testing and Auditing Solutions.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
14Exact matchCinnaminson, NJ, United StatesHQ recorded Nov 4, 2026501-1,000766 contacts →

Exact match

“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
15Exact matchIndonesiaHQ recorded Nov 4, 2026501-1,000654 contacts →

Exact match

“PT Solusi Energy Nusantara (SENA) is affiliation of PGN Group, a reputable company which has a core business in natural gas distribution and transmission.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
16Exact matchVlaardingen, NetherlandsHQ recorded Nov 4, 20261,001-5,000632 contacts →

Exact match

“Saybolt is the trade name for Core Laboratories' laboratory analyses, independent field inspections, and monitoring and verification programs for crude oil and its derived…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
17Exact matchMississauga, AB, CanadaHQ recorded Nov 4, 20261,001-5,000626 contacts →

Exact match

“Maxxam is a leading North American provider of analytical services and solutions to the energy, environmental, food, industrial hygiene and DNA industries.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
18Exact matchNavi Mumbai, IndiaHQ recorded Nov 4, 2026501-1,000586 contacts →

Exact match

“Tubestar, is a privately held company with over 4 decades experience in India.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
19Exact matchDoha, QatarHQ recorded Nov 4, 2026501-1,000539 contacts →

Exact match

“Petroleum Technology Company W.L.L (Petrotec) is one of the largest providers of Engineered products and services to the energy industry in Qatar, specializing in key diverse…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
20Exact matchPittsburgh, OH, United StatesHQ recorded Nov 4, 2026501-1,000500 contacts →

Exact match

“Companies of all sizes partner with Microbac to test the quality, safety, and performance of their products and operations.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
21Exact matchGardendale, TX, United StatesHQ recorded Nov 4, 20261,001-5,000472 contacts →

Exact match

“Jacam Catalyst offers a full range of oilfield chemical manufacturing, blending, formulating, analysis, and R&D capabilities.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
22Exact matchSan Antonio, OH, United StatesHQ recorded Nov 4, 2026501-1,000458 contacts →

Exact match

“As part of Certified Group, Food Safety Net Services (FSNS) and Certified Laboratories partner with customers to deliver innovative scientific solutions and expertise – So The…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
23Exact matchOderzo, ItalyHQ recorded Nov 4, 2026501-1,000391 contacts →

Exact match

“Lifeanalytics: dalle analisi chimiche e microbiologiche alla consulenza e formazione Sosteniamo i nostri Clienti nell’interpretazione e nell’implementazione delle normative…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Nov 4, 2026501-1,000384 contacts →

Exact match

“Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
25Exact matchMumbai, IndiaHQ recorded Nov 4, 2026501-1,000379 contacts →

Exact match

“We provide Third-Party Inspection, Conventional & Advanced Non-Destructive Testing (NDT) and Heat Treatment Services in Oil & Gas Sector, Flow Lines, Heavy Engineering, Onshore…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase

Showing 25 of 4,286 oil and gas testing laboratories worldwide

See the full list, filter by size, metro and specialty, and access 24,216 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas testing laboratories worldwide at a glance

As of Nov 4, 2026
20.6%Verified-email coverage
27.4Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · Houston
Nov 4, 2026Page data refreshed

Companies by employee count

1-10
1,422
11-50
1,778
51-200
730
201-500
182
501-1,000
64
1,001-5,000
39
5,001-10,000
12
10001+
10

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 oil and gas testing laboratories are linked below.
What qualifies
Company records worldwide whose business descriptions match “oil and gas testing laboratories” 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 24,216 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 4, 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.

Oil and gas testing laboratories by location

22 lists · largest first

Every Oil and gas testing laboratories list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “oil and gas testing laboratories”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas testing laboratories are there worldwide?

RevenueBase identified 4,286 company matches for oil and gas testing laboratories 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?

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

Which country has the most oil and gas testing laboratories?

The United States leads with 802 companies, followed by India (327) and Brazil (291). Every oil and gas testing laboratories list by country and city is linked on this page.

Which city has the most oil and gas testing laboratories?

Houston leads with 70 company records, followed by Tehran (30) and Port Harcourt (25).

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 24,216 professional contacts with verified work emails tracked across these 4,286 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 4, 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.