Company lists · Data refreshed September 2026

Top 25 Oil and gas inspection services based in the United States

RevenueBase identified 1,235 company matches for oil and gas inspection services associated with the United States as of September 2026 and tracks 36,418 professional contacts across them, including 10,880 with verified work emails. Houston is the largest hub.

This list covers company matches for oil and gas inspection services associated with the United States, 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 September 17, 2026.

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 Sep 17, 2026 How this list was built
1,235Companies
36,418Contacts tracked
10,880Verified emails
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The 25 largest oil and gas inspection services based in the United States

Ranked by team size
Top 25 of 1,235 company matches for oil and gas inspection services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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 matchCranbury, NJ, United StatesHQ recorded Sep 17, 20265,001-10,0003,447 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 · Sep 17, 2026 · View company records in RevenueBase
2Exact matchPrinceton Junction, NJ, United StatesHQ recorded Sep 17, 20265,001-10,0002,887 contacts →

Exact match

“MISTRAS Group, Inc.(NYSE: MG) is a global leader in technology-enabled industrial asset integrity solutions, serving critical industries including oil & gas, aerospace & defense…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3Exact matchIrvine, CA, United StatesHQ recorded Sep 17, 2026n/a1,308 contacts →

Exact match

“Training and Development Solutions”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4Exact matchThe Woodlands, TX, United StatesHQ recorded Sep 17, 20261,001-5,0001,285 contacts →

Exact match

“Cudd offers a broad range of technical and specialized oilfield services to companies engaged in the exploration and production of oil and natural gas worldwide.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Sep 17, 202610001+1,008 contacts →

Exact match

“For more than 85 years, Tuboscope™ has provided the industry with tubular expertise and an integrated suite of value-added solutions.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6Exact matchMarietta, GA, United StatesHQ recorded Sep 17, 20261,001-5,000890 contacts →

Exact match

“Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Sep 17, 20261,001-5,000877 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8Exact matchTulsa, OK, United StatesHQ recorded Sep 17, 20261,001-5,000770 contacts →

Exact match

“Core capabilities include: Inspection Services (Chief, CWI, NACE/AMPP, Utility, Environmental, Safety, Poly, etc), Non-Destructive Examination (Ultrasonic Testing (UT), Phased…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9Exact matchScott, LA, United StatesHQ recorded Sep 17, 20261,001-5,000570 contacts →

Exact match

“Improving efficiency and reducing costs, all while meeting safety requirements, is the challenge faced by every operator in the oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10Exact matchGuymon, OK, United StatesHQ recorded Sep 17, 20261,001-5,000524 contacts →

Exact match

“We’ve been a leader in the inspection and construction industry for over 25 years.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Sep 17, 2026201-500392 contacts →

Exact match

“Sentinel ™ Integrity Solutions, Inc.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Sep 17, 2026501-1,000379 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 · Sep 17, 2026 · View company records in RevenueBase
13Exact matchTomball, TX, United StatesHQ recorded Sep 17, 20265,001-10,000356 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Sep 17, 20261,001-5,000325 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Sep 17, 2026201-500318 contacts →

Exact match

“Kestrel provides engineering, project and construction management and inspection services to the oil and gas industries.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Sep 17, 2026201-500285 contacts →

Exact match

“Greene’s Energy Group offers a range of support services and products to the oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17Exact matchHuntersville, NC, United StatesHQ recorded Sep 17, 2026201-500274 contacts →

Exact match

“Structural Integrity Associates is the most-trusted provider of proven engineering services for the energy and process industries.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18Exact matchCut Off, LA, United StatesHQ recorded Sep 17, 2026201-500272 contacts →

Exact match

“Founded as C&D Wireline in 1968, with C&D Production Specialist joining the business in 1993, today Crosby Energy Services is a certified Women’s Business Enterprise National…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19Exact matchOklahoma City, OK, United StatesHQ recorded Sep 17, 2026201-500262 contacts →

Exact match

“Setting the Standard for Premier Inspection Services in the Oil & Gas Industry through our Dedication to Tradition / Talent / Technology / Teamwork TJ Inspection provides the…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20Exact matchSpring, TX, United StatesHQ recorded Sep 17, 2026201-500253 contacts →

Exact match

“For more than 40 years, M&H has been a trusted source for oil & gas consulting services that maximize value for clients.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21Exact matchAnchorage, AK, United StatesHQ recorded Sep 17, 2026201-500233 contacts →

Exact match

“Udelhoven Company founded in 1970 is a privately held full service construction, operations and maintenance company offering diversified products and services from oil field…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22Exact matchPasadena, TX, United StatesHQ recorded Sep 17, 2026501-1,000226 contacts →

Exact match

“The TechCorr name is synonymous with safe, quality inspection services.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23Exact matchLeague City, TX, United StatesHQ recorded Sep 17, 2026201-500213 contacts →

Exact match

“Pro-Surve Technical Services is an advanced non-destructive testing and inspection company.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Sep 17, 2026501-1,000191 contacts →

Exact match

“Getting it done right.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25Exact matchIndianapolis, IN, United StatesHQ recorded Sep 17, 202651-200175 contacts →

Exact match

“ENTEGRA® is the pioneer and sole provider of true Ultra-High Resolution (UHR) Magnetic Flux Leakage (MFL) inline inspection systems for pipeline integrity assessment.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

Showing 25 of 1,235 oil and gas inspection services based in the United States

See the full list, filter by size, metro and specialty, and access 10,880 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas inspection services based in the United States at a glance

As of Sep 17, 2026
29.9%Verified-email coverage
29.5Average contacts per company
11-50Median size (employees)
14.9%Largest-city concentration · Houston
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
446
11-50
444
51-200
221
201-500
77
501-1,000
16
1,001-5,000
23
5,001-10,000
4
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,235 companies.

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.
What qualifies
Company records associated with the United States whose business descriptions match “oil and gas inspection 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 10,880 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 September 17, 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.

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 inspection services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas inspection services are there based in the United States?

RevenueBase identified 1,235 company matches for oil and gas inspection services associated with the United States as of September 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?

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

Which city has the most oil and gas inspection services?

Houston leads with 184 company records, followed by Midland (38) and Odessa (21).

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 10,880 professional contacts with verified work emails tracked across these 1,235 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 September 17, 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.