Company lists · Data refreshed September 2026

Top 25 Gas line safety inspection companies based in the United States

RevenueBase identified 92 company matches for gas line safety inspection companies associated with the United States as of September 2026 and tracks 2,742 professional contacts across them, including 566 with verified work emails. Houston is the largest hub.

This list covers company matches for gas line safety inspection companies 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 20, 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 20, 2026 How this list was built
92Companies
2,742Contacts tracked
566Verified emails
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The 25 largest gas line safety inspection companies based in the United States

Ranked by team size
Top 25 of 92 company matches for gas line safety inspection companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchHouston, TX, United StatesHQ recorded Sep 20, 20261,001-5,000799 contacts →

Exact match

“Since 1933 Heath has led the industry in the safety of natural gas utilities infrastructure through the innovative and conscientious actions of our employees.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchPasadena, TX, United StatesHQ recorded Sep 20, 2026501-1,000226 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchLeague City, TX, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
4Exact matchSaint Rose, LA, United StatesHQ recorded Sep 20, 2026201-500130 contacts →

Exact match

“Since 1978, Coastal Gulf & International, Inc.(CGI) has been a trusted leader in independent inspection, testing, and technical services for the energy, petrochemical, and marine…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchAustin, TX, United StatesHQ recorded Sep 20, 2026501-1,000130 contacts →

Exact match

“Welcome to On & Offshore Quality Control Specialists, LLC.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchPlano, TX, United StatesHQ recorded Sep 20, 2026501-1,000119 contacts →

Exact match

“The core of TJ Inspection has always included a unique concept that has continued to drive our company into what it is today, an inspection company ran by inspectors.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchFort Worth, TX, United StatesHQ recorded Sep 20, 2026201-50094 contacts →

Exact match

“3B Inspection was founded in 2016 to provide dependable, high-quality inspection services for the oil and gas pipeline industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchBelle Chasse, LA, United StatesHQ recorded Sep 20, 202611-5083 contacts →

Exact match

“Based in Belle Chasse, LA, with a satellite location in Houma, LA, Tailing International, LLC provides 3rd party inspection and construction management to the oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchNew Mexico, TX, United StatesHQ recorded Sep 20, 2026201-50066 contacts →

Exact match

“Pipeline inspection division of Legacy Safety & Consulting LLC.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchValparaiso, IN, United StatesHQ recorded Sep 20, 202651-20046 contacts →

Exact match

“CATSI is a leading provider of specialized inspection and technical services, primarily serving the oil and gas, pipeline, chemical, metals, and power industries.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchArden, NC, United StatesHQ recorded Sep 20, 202611-5045 contacts →

Exact match

“Evergreen Medical Services provides medical gas systems testing, inspections and equipment as well as environmental-exposure monitoring in hospitals and pharmacies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchMidland, TX, United StatesHQ recorded Sep 20, 202651-20042 contacts →

Exact match

“At J&J Pressure Management we take your high pressure iron business seriously.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchSan Diego, CA, United StatesHQ recorded Sep 20, 202651-20033 contacts →

Exact match

“Our mission is to provide the highest industry standards through quality inspection & testing.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchKemah, TX, United StatesHQ recorded Sep 20, 202611-5025 contacts →

Exact match

“Since 1985, in locations throughout the world, Alpha Pipeline Integrity Services (hereafter referred to as Alpha), has been providing services like tracer gas leak detection for…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Sep 20, 202611-5023 contacts →

Exact match

“At EnServ Solutions, we offer a wide variety of services to aid operators in maintaining compliance with 49 CFR 192 and 195 regulations as well as various state partners.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchTulsa, OK, United StatesHQ recorded Sep 20, 202651-20020 contacts →

Exact match

“At Keystone Energy Group, our core commitment is to uphold the highest standards of quality, integrity and excellence in all our inspection services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchKrum, TX, United StatesHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“ARC Inspection Services, LLC, provides Non-Destructive Examination, Welder Testing services and 3rd Party Inspectors for the pipeline and heavy industrial market.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchSacramento, CA, United StatesHQ recorded Sep 20, 202611-5014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchMadill, OK, United StatesHQ recorded Sep 20, 202651-20012 contacts →

Exact match

“J.P.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchSan Ramon, CA, United StatesHQ recorded Sep 20, 202611-5011 contacts →

Exact match

“MBS - Masters Of Our Craft MBS Engineering has the experience, knowledge and skills to become your go-to company for all natural gas-related needs, including gas leak detection…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchTulsa, OK, United StatesHQ recorded Sep 20, 20261,001-5,00011 contacts →

Exact match

“The company's core capabilities include: Inspection Services, Non-Destructive Examination, Pipeline Integrity Support (AGM surveys, ILI tool tracking, dig staking and as-built…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Sep 20, 20261-1011 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchAnnandale, MN, United StatesHQ recorded Sep 20, 202611-509 contacts →

Exact match

“Integrity Specialists is a full service non-destructive testing and inspection company.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchBloomfield, NM, United StatesHQ recorded Sep 20, 20261-107 contacts →

Exact match

“Mellevet, LLC is a Compliance, Safety, and Technical Services company in Bloomfield, NM.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchBarnesville, OH, United StatesHQ recorded Sep 20, 202611-507 contacts →

Exact match

“Iron Certification - Rebuild & Inspection Ultrasonic Testing - Rebuild & Inspection Mag Particle Testing - Wet / Dry Liquid Dye Penetrant Testing Weld Inspection Asset Tracking…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 92 gas line safety inspection companies based in the United States

See the full list, filter by size, metro and specialty, and access 566 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Gas line safety inspection companies based in the United States at a glance

As of Sep 20, 2026
20.6%Verified-email coverage
29.8Average contacts per company
11-50Median size (employees)
5.4%Largest-city concentration · Houston
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
33
11-50
35
51-200
9
201-500
6
501-1,000
5
1,001-5,000
2

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 92 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 “gas line safety inspection 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. 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 566 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 20, 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 “gas line safety inspection companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many gas line safety inspection companies are there based in the United States?

RevenueBase identified 92 company matches for gas line safety inspection companies 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?

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

Which city has the most gas line safety inspection companies?

Houston leads with 5 company records, followed by Midland (4) and Pasadena (3).

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 566 professional contacts with verified work emails tracked across these 92 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 20, 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.