Company lists · Data refreshed September 2026

Top 25 Oil gas consulting firms based in Houston, United States

RevenueBase identified 573 company matches for oil gas consulting firms associated with Houston, United States as of September 2026 and tracks 69,284 professional contacts across them, including 18,055 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for oil gas consulting firms associated with Houston, 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 21, 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 21, 2026 How this list was built
573Companies
69,284Contacts tracked
18,055Verified emails
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The 25 largest oil gas consulting firms based in Houston, United States

Ranked by team size
Top 25 of 573 company matches for oil gas consulting firms based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 21, 202610001+53,380 contacts →

Exact match

“We collaborate and engineer solutions to maximize asset value for our customers.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Sep 21, 20261,001-5,0001,046 contacts →

Exact match

“At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Sep 21, 20261,001-5,000715 contacts →

Exact match

“For 25 years Capco’s Energy practice has combined innovative thinking with deep industry knowledge to provide business consulting, digital transformation and technology services…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Sep 21, 2026501-1,000476 contacts →

Exact match

“Bastion Technologies is a multi-disciplined engineering and technical services company headquartered in Houston, Texas.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Sep 21, 2026201-500424 contacts →

Exact match

“EnerVest is a top-tier, low-cost oil and natural gas operating company.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Sep 21, 2026n/a386 contacts →

Exact match

“Rigzone is the leading online resource for the oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Sep 21, 2026201-500258 contacts →

Exact match

“Opportune LLP is a leading global business advisory firm focused on adding value to clients across multiple industries with preeminence in energy.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200250 contacts →

Exact match

“CTS - Complete Technical Services, Inc.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200245 contacts →

Exact match

“New Tech Global (NTG) is comprised of 5 different business units: New Tech Global Ventures: Upstream Oil & Gas consultancy services, and W-2 professional placement services for…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Sep 21, 20261,001-5,000239 contacts →

Exact match

“Cenergy is a dynamic company that supplies expert workforce solutions to the World's Leading Industries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200181 contacts →

Exact match

“Zentech, Inc, an engineering consulting and software development company, headquartered in Houston, TX, is comprised of experienced professionals specializing in providing…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200179 contacts →

Exact match

“EAG is a Houston-based, privately held consulting, back-office outsourcing, and IT outsourcing firm that delivers products and services primarily to the upstream and midstream oil…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Sep 21, 2026201-500171 contacts →

Exact match

“TPH & Co, the energy business of Perella Weinberg, provides strategic and financial advice to investors, management teams, boards of directors, government bodies, and other…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200160 contacts →

Exact match

“CIMA® is a wholly owned subsidiary of Mitsubishi Corporation.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200124 contacts →

Exact match

“PERC Engineering is a full-service engineering & project management firm in the oil & gas energy sector.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200116 contacts →

Exact match

“Edge Engineering & Science, LLC (EDGE) is a privately owned professional services firm headquartered in Houston, Texas.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Sep 21, 2026501-1,000115 contacts →

Exact match

“Bedrock Petroleum Consultants was formed in 2011 with the goal of providing the highest level of quality service to both our consultants and operator clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200109 contacts →

Exact match

“Ryder Scott Company, L.P.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200108 contacts →

Exact match

“Enertia Software continues to lead the upstream oil and gas industry with integrated enterprise solutions for the upstream oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Sep 21, 2026201-500101 contacts →

Exact match

“ModuSpec first introduced the concept of rig inspection to the market in 1986 and since then, has been providing unrivalled expertise and assurance to support safe operations…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-200101 contacts →

Exact match

“Stonebridge Consulting provides business advisory and technology services for next-gen oil and gas.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202611-50101 contacts →

Exact match

“Deep Sea Development Services Inc.(DSDS) is a Houston-based service company focused on subsea and deepwater development projects The company was formed in 1996 to meet the need…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Sep 21, 202651-20097 contacts →

Exact match

“RCI Energy Group provides a wide range of project support services to the energy industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 573 oil gas consulting firms based in Houston, United States

See the full list, filter by size, metro and specialty, and access 18,055 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil gas consulting firms based in Houston, United States at a glance

As of Sep 21, 2026
26.1%Verified-email coverage
120.9Average contacts per company
1-10Median size (employees)
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
293
11-50
173
51-200
71
201-500
17
501-1,000
6
1,001-5,000
8
5,001-10,000
2
10001+
3

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 573 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 Houston, United States whose business descriptions match “oil gas consulting firms” 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 18,055 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 21, 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 gas consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil gas consulting firms are there based in Houston, United States?

RevenueBase identified 573 company matches for oil gas consulting firms associated with Houston, 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?

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

Which city in the United States has the most oil gas consulting firms?

Houston leads the United States with 573 company records, followed by Denver (66) and Midland (58).

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 18,055 professional contacts with verified work emails tracked across these 573 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 21, 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.