Company lists · Data refreshed September 2026

Top 25 Oil and gas management consulting firms based in the United States

RevenueBase identified 4,323 oil and gas management consulting firms headquartered in the United States as of September 2026 and tracks 121,261 professional contacts across them, including 32,318 with verified work emails. Houston is the largest hub.

This list covers oil and gas management consulting firms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
4,323Companies
121,261Contacts tracked
32,318Verified emails
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The 25 largest oil and gas management consulting firms based in the United States

Ranked by team size
Top 25 of 4,323 oil and gas management consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas management consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceHouston, TX, United StatesHQ checked Sep 21, 202610001+53,380 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceHouston, TX, United StatesHQ checked Sep 21, 20261,001-5,0002,755 contacts →

Indirect evidence

“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceHouston, TX, United StatesHQ checked Sep 21, 20261,001-5,0001,775 contacts →

Indirect evidence

“TGS provides advanced data and intelligence to companies active in the energy sector.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceIrvine, CA, United StatesHQ checked Sep 21, 2026n/a1,308 contacts →

Indirect evidence

“Training and Development Solutions”

Source: RevenueBase Database · checked Sep 21, 2026
5Partial evidenceSouthfield, MI, United StatesHQ checked Sep 21, 20261,001-5,0001,290 contacts →

Partial evidence

“Atwell is a full-service consulting, engineering and construction services firm that delivers a broad range of creative solutions to clients in the real estate and land…”

Source: RevenueBase Database · checked Sep 21, 2026
6Strong evidenceThe Woodlands, TX, United StatesHQ checked Sep 21, 20261,001-5,0001,285 contacts →

Strong evidence

“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.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceFrisco, TX, United StatesHQ checked Sep 21, 2026501-1,0001,149 contacts →

Partial evidence

“W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceMinneapolis, MN, United StatesHQ checked Sep 21, 20261,001-5,0001,088 contacts →

Partial evidence

“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceSan Antonio, TX, United StatesHQ checked Sep 21, 20261,001-5,000770 contacts →

Indirect evidence

“Pioneer Energy Services is now Patterson-UTI”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceCleveland, OK, United StatesHQ checked Sep 21, 20261,001-5,000761 contacts →

Indirect evidence

“Cleveland Integrity Services offers support services to companies in the Energy, Telecommunications, and Power industries.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 20261,001-5,000715 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceMetairie, LA, United StatesHQ checked Sep 21, 2026501-1,000700 contacts →

Indirect evidence

“EDG Inc.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceAlice, TX, United StatesHQ checked Sep 21, 20261,001-5,000651 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
14Strong evidenceMiami, FL, United StatesHQ checked Sep 21, 2026501-1,000580 contacts →

Strong evidence

“Somos una empresa multinacional líder en servicios de Consultoría de Oil & Gas, IT, Ingeniería, Recursos Humanos, Head Hunter y Proyectos”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceLongview, TX, United StatesHQ checked Sep 21, 2026501-1,000578 contacts →

Indirect evidence

“Since 1991, Applied Consultants Inc.”

Source: RevenueBase Database · checked Sep 21, 2026
16Strong evidenceScott, LA, United StatesHQ checked Sep 21, 20261,001-5,000570 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceLiberty Corner, NJ, United StatesHQ checked Sep 21, 2026501-1,000545 contacts →

Indirect evidence

“Becht partners with industrial operators across the energy and process sectors to solve complex challenges that impact safety, reliability, and profitability.”

Source: RevenueBase Database · checked Sep 21, 2026
18Strong evidenceHouston, TX, United StatesHQ checked Sep 21, 2026201-500424 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
19Strong evidenceSulphur, LA, United StatesHQ checked Sep 21, 2026501-1,000420 contacts →

Strong evidence

“ReCon was established in 1995 and has matured as a high quality and competitive engineering consulting firm providing engineering design and project management services to the…”

Source: RevenueBase Database · checked Sep 21, 2026
20Strong evidenceHouston, TX, United StatesHQ checked Sep 21, 2026n/a386 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceLincolnshire, IL, United StatesHQ checked Sep 21, 2026201-500365 contacts →

Partial evidence

“Manhard Consulting has joined Atwell, a national consulting, engineering, and construction services firm with 2,100 technical professionals across the country.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 2026201-500322 contacts →

Partial evidence

“Leadership, accountability and integrity: Taken together, these three words sum up the core values that drive our mission to provide quality project management, engineering…”

Source: RevenueBase Database · checked Sep 21, 2026
23Strong evidenceHouston, TX, United StatesHQ checked Sep 21, 2026201-500318 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
24Strong evidenceDeer Park, TX, United StatesHQ checked Sep 21, 2026201-500304 contacts →

Strong evidence

“KAP Project Services is a leading project management and consulting firm serving the petrochemical, power, LNG, pharmaceutical, and oil & gas industries.”

Source: RevenueBase Database · checked Sep 21, 2026
25Strong evidenceHouston, TX, United StatesHQ checked Sep 21, 2026201-500285 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 4,323 oil and gas management consulting firms based in the United States

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Oil and gas management consulting firms based in the United States at a glance

As of Sep 21, 2026
26.7%Verified-email coverage
28.1Average contacts per company
1-10Median size (employees)
16.3%Largest-city concentration · Houston
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
2,684
11-50
1,074
51-200
390
201-500
103
501-1,000
33
1,001-5,000
26
5,001-10,000
6
10001+
3

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 4,323 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among oil and gas management consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “oil and gas management consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names oil and gas management consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among oil and gas management consulting firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 32,318 across the full list. 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.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names oil and gas management consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many oil and gas management consulting firms are there based in the United States?

RevenueBase identified 4,323 oil and gas management consulting firms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Halliburton, headquartered in Houston, tops this list with the largest team on record.

Which city has the most oil and gas management consulting firms?

Houston leads with 705 headquartered companies, followed by Denver (98) and Dallas (86).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 32,318 verified decision-maker contacts tracked across these 4,323 companies.

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 Smart Search, 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.