Company lists · Data refreshed November 2026

Top 25 Downhole fluid laboratory services worldwide

RevenueBase identified 1,795 company matches for downhole fluid laboratory services worldwide as of November 2026 and tracks 59,241 professional contacts across them, including 13,227 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for downhole fluid laboratory services 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 downhole fluid laboratory services 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
1,795Companies
59,241Contacts tracked
13,227Verified emails
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The 25 largest downhole fluid laboratory services worldwide

Ranked by team size
Top 25 of 1,795 company matches for downhole fluid laboratory services 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 matchLuxembourgHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
2Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
3Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 20261,001-5,0001,792 contacts →

Exact match

“Every year, drilling teams make decisions worth millions of dollars on incomplete information.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,601 contacts →

Exact match

“With over 70 offices in more than 50 countries located in major oil-producing provinces, Core Laboratories provides services to the world's major, national, and independent oil…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchKaty, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,303 contacts →

Exact match

“Newpark Fluids Systems is the world’s leading pure-play oil & gas and geothermal fluid solutions provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCalgary, QC, CanadaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
7Exact matchHouston, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
8Exact matchSeville, SpainHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
9Exact matchAlice, TX, United StatesHQ recorded Nov 6, 20261,001-5,000673 contacts →

Exact match

“FESCO is a diversified energy services company providing quality equipment and experienced personnel since 1949.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchHouston, United StatesHQ recorded Nov 6, 2026501-1,000565 contacts →

Exact match

“CETCO Energy Services (CETCO) specializes in treating complex fluids for offshore oil and gas operators.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchGardendale, TX, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
12Exact matchMumbai, IndiaHQ recorded Nov 6, 2026501-1,000457 contacts →

Exact match

“OFI-was founded in 1992 as an OEM for Mud Logging units / Mud logging services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026501-1,000422 contacts →

Exact match

“Stratum Reservoir helps organizations make better decisions about their resources by transforming complex scientific data into actionable insights.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHouston, CO, United StatesHQ recorded Nov 6, 2026501-1,000396 contacts →

Exact match

“AES Drilling Fluids is prepared to successfully deliver on any challenging project from the well site to the customer's office.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
16Exact matchMinneapolis, MN, United StatesHQ recorded Nov 6, 20261,001-5,000326 contacts →

Exact match

“Watch our video on the history and culture of Pace at https://goo.gl/L3ruD3 or get a more detailed look through our company brochure at https://goo.gl/feMDwU!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBuenos Aires, ArgentinaHQ recorded Nov 6, 20261,001-5,000316 contacts →

Exact match

“For more than 30 years we have been a reliable partner in the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchRio Das Ostras, BrazilHQ recorded Nov 6, 2026201-500309 contacts →

Exact match

“At GT Química, we turn urgency into results.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchUnited StatesHQ recorded Nov 6, 20261,001-5,000287 contacts →

Exact match

“China National Logging Corporation (CNLC), a subsidiary of CNPC Services & Engineering Ltd, solely on behalf of CNPC providing well bore technical services in international…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchJebal Ali, United Arab EmiratesHQ recorded Nov 6, 2026201-500279 contacts →

Exact match

“Established in in Dubai, Geo-Chem Middle East is today recognised as one of the premier inspection and testing companies in the region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSantiago, ChileHQ recorded Nov 6, 2026201-500254 contacts →

Exact match

“Con más de 25 años de experiencia, en ANAM somos líderes en monitoreos y análisis físicos, químicos y microbiológicos de matrices ambientales.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCastellon, SpainHQ recorded Nov 6, 2026201-500244 contacts →

Exact match

“IPROMA is one of the leading companies in the fields of environmental laboratory analysis, technical advice and industrial hygiene.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWestborough, NY, United StatesHQ recorded Nov 6, 2026501-1,000243 contacts →

Exact match

“Since 1987, Alpha Analytical, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHertfordshire, United KingdomHQ recorded Nov 6, 2026201-500238 contacts →

Exact match

“Founded in 2003, Normec i2 Analytical is one of Europe's leading environmental testing companies providing its customers a comprehensive range of analytical, monitoring and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPittsburgh, PA, United StatesHQ recorded Nov 6, 2026201-500211 contacts →

Exact match

“RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.”

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

Showing 25 of 1,795 downhole fluid laboratory services worldwide

See the full list, filter by size, metro and specialty, and access 13,227 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Downhole fluid laboratory services worldwide at a glance

As of Nov 6, 2026
22.3%Verified-email coverage
33.0Average contacts per company
11-50Median size (employees)
3.4%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
630
11-50
713
51-200
311
201-500
59
501-1,000
31
1,001-5,000
25
5,001-10,000
4
10001+
5

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 downhole fluid laboratory services are linked below.
What qualifies
Company records worldwide whose business descriptions match “downhole fluid laboratory services” 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 13,227 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.

Downhole fluid laboratory services by location

12 lists · largest first

Every Downhole fluid laboratory services 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 “downhole fluid laboratory services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many downhole fluid laboratory services are there worldwide?

RevenueBase identified 1,795 company matches for downhole fluid laboratory services 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 downhole fluid laboratory services?

The United States leads with 491 companies, followed by Brazil (126) and Canada (79). Every downhole fluid laboratory services list by country and city is linked on this page.

Which city has the most downhole fluid laboratory services?

Houston leads with 61 company records, followed by Calgary (33) and Midland (26).

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 13,227 professional contacts with verified work emails tracked across these 1,795 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.

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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.