Company lists · Data refreshed November 2026

Top 25 Petroleum engineering consulting firms worldwide

Name: Petroleum engineering consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 9,231 companies tracked

RevenueBase identified 9,231 company matches for petroleum engineering consulting firms worldwide as of November 2026 and tracks 384,585 professional contacts across them, including 74,760 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for petroleum engineering consulting firms 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 5, 2026. Country and city lists for petroleum engineering consulting firms 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 5, 2026 How this list was built

9,231Companies

384,585Contacts tracked

74,760Verified emails

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The 25 largest petroleum engineering consulting firms worldwide

Ranked by team size

Top 25 of 9,231 company matches for petroleum engineering consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Halliburton	Exact match	Houston, United StatesHQ recorded Nov 5, 2026	10001+	58,281 contacts →
	Exact match “We collaborate and engineer solutions to maximize asset value for our customers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Aker Solutions	Exact match	Fornebu, NorwayHQ recorded Nov 5, 2026	10001+	16,534 contacts →
	Exact match “Aker Solutions is a global engineering and technology company known for delivering complex energy projects with trusted quality and predictable results.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	WOOD	Exact match	Aberdeen, United KingdomHQ recorded Nov 5, 2026	10001+	16,375 contacts →
	Exact match “Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Tata Consulting Engineers	Exact match	Mumbai, IndiaHQ recorded Nov 5, 2026	5,001-10,000	8,994 contacts →
	Exact match “Tata Consulting Engineers Limited (TCE) is the largest Indian private sector engineering and project consultancy and an emerging global leader in integrated engineering solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Seatrium	Exact match	United StatesHQ recorded Nov 5, 2026	10001+	5,162 contacts →
	Exact match “A Premier Global Player with Deep Engineering Expertise in the offshore, marine and energy industries Engineering our Future Together.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	KEY Energy Services	Exact match	Houston, TX, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,991 contacts →
	Exact match “Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	دار الرياض DAR AL Riyadh	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 5, 2026	1,001-5,000	2,975 contacts →
	Exact match “Founded in the mid-1970s by Prince Turki bin Abdullah bin Abdulrahman Al Saud, a forward-thinking engineering pioneer, Dar Al Riyadh has evolved into the Kingdom's leading…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Nova Engevix	Exact match	Barueri, BrazilHQ recorded Nov 5, 2026	1,001-5,000	2,475 contacts →
	Exact match “Fundada em 1965 e com mais de 40 anos de experiência, a Engevix é a maior empresa do segmento de engenharia consultiva do Brasil.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Aarvi Encon	Exact match	Mumbai, IndiaHQ recorded Nov 5, 2026	5,001-10,000	1,982 contacts →
	Exact match “Aarvi Encon has established it's leadership in providing Engineering Consultancy and Technical Assistance to Oil & Gas, Refinery, Petrochemical, Pipelines, Power & Infrastructure…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Englobe	Exact match	Québec, ON, CanadaHQ recorded Nov 5, 2026	1,001-5,000	1,936 contacts →
	Exact match “Englobe is a leader in the fields of engineering, gesosciences, environmental management, asset integrity and quality management.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Burns & Mcdonnell India	Exact match	Vikhroli West, IndiaHQ recorded Nov 5, 2026	1,001-5,000	1,874 contacts →
	Exact match “At Burns & McDonnell India, we are a diverse team of talented engineers with multidiscipline design and consultancy working across sectors in critical infrastructure: oil and gas…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Tp-Otc	Exact match	Çankaya, TürkiyeHQ recorded Nov 5, 2026	501-1,000	1,813 contacts →
	Exact match “TP-OTC is established to provide all engineering and technology services for offshore operations in oil and gas industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Robtstone ME LLC	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Nov 5, 2026	1,001-5,000	1,758 contacts →
	Exact match “At Robt.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	RENCO	Exact match	Pesaro, ItalyHQ recorded Nov 5, 2026	1,001-5,000	1,722 contacts →
	Exact match “Renco S.p.A, an Italian company founded in 1979, is continually committed to providing its Clients with sound business solutions in an ever increasingly complex and challenging…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Vulcain Engineering Group	Exact match	Neuilly-sur-seine, FranceHQ recorded Nov 5, 2026	5,001-10,000	1,705 contacts →
	Exact match “Vulcain Engineering Group is a multi-specialist engineering and consulting group serving industrial companies across the globe, focused on critical sectors: energy, health…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Chiyoda Corporation	Exact match	Yokohama, JapanHQ recorded Nov 5, 2026	5,001-10,000	1,702 contacts →
	Exact match “Since its establishment in 1948, Chiyoda's business field has covered the energy sector such as oil and gas industry including energy conservation, and chemicals, environment…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Audubon Companies	Exact match	Houston, LA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,699 contacts →
	Exact match “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Core Laboratories	Exact match	Houston, TX, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,601 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 5, 2026 · View company records in RevenueBase
19	Atwell, LLC	Exact match	Southfield, MI, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,561 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Bilfinger Engineering	Exact match	Schiedam, NetherlandsHQ recorded Nov 5, 2026	1,001-5,000	1,531 contacts →
	Exact match “Engineering for greenfield plants or modification and modernization projects for brownfield plants: Bilfinger delivers the optimized solution for our customers in terms of…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	ANTON	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 5, 2026	5,001-10,000	1,522 contacts →
	Exact match “Anton Oilfield Services Group (hereinafter as “Anton”) is the world's leading integrated oilfield technology service company that provides clients with a full range of products…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	AL Turki Enterprises L.L.C	Exact match	United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,336 contacts →
	Exact match “At Al Turki’s Oil and Gas Division, we carry out multi-disciplined Engineering Design, Procurement and Construction service in the southern region of Oman with our Off-plot…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Aries Energy	Exact match	United Arab EmiratesHQ recorded Nov 5, 2026	1,001-5,000	1,319 contacts →
	Exact match “Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Abraj Energy Services	Exact match	Muscat, OmanHQ recorded Nov 5, 2026	1,001-5,000	1,315 contacts →
	Exact match “Abraj Energy Services ("Abraj"), was founded in May 2006 and has taken major strides.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Lycopodium	Exact match	Perth, AustraliaHQ recorded Nov 5, 2026	1,001-5,000	1,250 contacts →
	Exact match “Lycopodium is an Australian headquartered engineering and project management consultancy which provides a complete range of services for the evaluation, development…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “petroleum engineering consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 9,231 petroleum engineering consulting firms worldwide

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Petroleum engineering consulting firms worldwide at a glance

As of Nov 5, 2026

19.4%Verified-email coverage

41.7Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · Houston

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

4,091

11-50

2,972

51-200

1,361

201-500

422

501-1,000

162

1,001-5,000

123

5,001-10,000

10001+

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 petroleum engineering consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “petroleum engineering 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. 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 74,760 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 5, 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.

Petroleum engineering consulting firms by location

72 lists · largest first

Every Petroleum engineering consulting firms 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 “petroleum engineering consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many petroleum engineering consulting firms are there worldwide?

RevenueBase identified 9,231 company matches for petroleum engineering consulting firms 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?

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

Which country has the most petroleum engineering consulting firms?

The United States leads with 1,266 companies, followed by the United Kingdom (649) and India (504). Every petroleum engineering consulting firms list by country and city is linked on this page.

Which city has the most petroleum engineering consulting firms?

Houston leads with 343 company records, followed by Calgary (237) and Tehran (224).

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 74,760 professional contacts with verified work emails tracked across these 9,231 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 5, 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.