Company lists · Data refreshed November 2026

Top 25 Oil and gas technology consultants worldwide

Name: Oil and gas technology consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 4, 2026 23,098 companies tracked

RevenueBase identified 23,098 company matches for oil and gas technology consultants worldwide as of November 2026 and tracks 853,966 professional contacts across them, including 209,848 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for oil and gas technology consultants 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 4, 2026. Country and city lists for oil and gas technology consultants 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 4, 2026 How this list was built

23,098Companies

853,966Contacts tracked

209,848Verified emails

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The 25 largest oil and gas technology consultants worldwide

Ranked by team size

Top 25 of 23,098 company matches for oil and gas technology consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 4, 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	Tech Mahindra	Exact match	Pune, IndiaHQ recorded Nov 4, 2026	10001+	145,360 contacts →
	Exact match “Tech Mahindra offers technology consulting and digital solutions to global enterprises across industries, enabling transformative scale at unparalleled speed.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
2	SLB	Exact match	Houston, TX, United StatesHQ recorded Nov 4, 2026	10001+	82,942 contacts →
	Exact match “SLB is a global technology company that has driven energy innovation for more than a century.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
3	NOV	Exact match	Houston, TX, United StatesHQ recorded Nov 4, 2026	10001+	30,477 contacts →
	Exact match “NOV delivers technology-driven solutions to empower the global energy industry.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
4	Aker Solutions	Exact match	Fornebu, NorwayHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
5	CDW	Exact match	Vernon Hills, IL, United StatesHQ recorded Nov 4, 2026	10001+	13,669 contacts →
	Exact match “At CDW, we know how to make technology work so people can do great things.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
6	Technip Former Company	Exact match	United KingdomHQ recorded Nov 4, 2026	10001+	12,130 contacts →
	Exact match “Technip is a former company that was separated into two independent companies: TechnipFMC and Technip Energies, which now operate with no capital ties.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
7	Endava	Exact match	London, United KingdomHQ recorded Nov 4, 2026	10001+	10,037 contacts →
	Exact match “For over two decades, we have been harnessing technology to drive meaningful change.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
8	World Wide Technology	Exact match	Maryland Heights, MO, United StatesHQ recorded Nov 4, 2026	10001+	9,996 contacts →
	Exact match “We are thinkers and doers.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
9	EXPRO	Exact match	Houston, United StatesHQ recorded Nov 4, 2026	5,001-10,000	6,924 contacts →
	Exact match “Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
10	Nabors Industries	Exact match	Houston, TX, United StatesHQ recorded Nov 4, 2026	10001+	6,404 contacts →
	Exact match “Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
11	SII Poland	Exact match	Warsaw, PolandHQ recorded Nov 4, 2026	5,001-10,000	5,657 contacts →
	Exact match “With over 7 500 Power People, Sii is Poland’s #1 partner for technology consulting, AI-driven digital transformation, engineering, and business services, empowering companies to…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
12	MODEC	Exact match	Chuo-ku, JapanHQ recorded Nov 4, 2026	5,001-10,000	5,542 contacts →
	Exact match “MODEC has been a leading provider of solutions for the floating offshore oil and gas market for over 50 years.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
13	Amaris Consulting Part Of Mantu	Exact match	Chêne-bourg, SwitzerlandHQ recorded Nov 4, 2026	5,001-10,000	5,223 contacts →
	Exact match “Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
14	Groupe SII	Exact match	Paris, FranceHQ recorded Nov 4, 2026	10001+	5,212 contacts →
	Exact match “Le groupe SII est une société d’ingénierie et de conseil en technologies (ICT) et une entreprise de services numériques (ESN) créée en 1979 par Bernard HUVÉ, ingénieur de…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
15	Aricent	Exact match	Santa Clara, United StatesHQ recorded Nov 4, 2026	10001+	4,380 contacts →
	Exact match “Aricent is now Altran, delivering industry innovations at future speed.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
16	PT Elnusa TBK	Exact match	Jakarta Selatan, IndonesiaHQ recorded Nov 4, 2026	1,001-5,000	4,263 contacts →
	Exact match “We are the one and only national company that possesses combined competencies in oil & gas services: seismic, drilling and oilfield.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
17	KEY Energy Services	Exact match	Houston, TX, United StatesHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
18	Etteplan	Exact match	Espoo, FinlandHQ recorded Nov 4, 2026	1,001-5,000	2,556 contacts →
	Exact match “We are a technology service company that, with our thinkers and doers, enable breakthroughs that help industrial businesses change.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
19	CTG	Exact match	Amherst, United StatesHQ recorded Nov 4, 2026	5,001-10,000	2,465 contacts →
	Exact match “CTG, a Cegeka company, is at the forefront of digital transformation, offering innovative IT solutions and services that accelerate your strategy and project momentum.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
20	Oilserv	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 4, 2026	1,001-5,000	2,408 contacts →
	Exact match “OiLSERV is a provider of an expanding range of oilfield services, including well logging, well testing, production enhancement, drilling services, surface production management…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
21	OCYAN	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 4, 2026	1,001-5,000	2,402 contacts →
	Exact match “A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
22	Alithya	Exact match	Montréal, QC, CanadaHQ recorded Nov 4, 2026	1,001-5,000	2,366 contacts →
	Exact match “We are trusted advisors who leverage AI and the latest technologies in our strategic consulting and digital transformation services.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
23	Keyrus	Exact match	Levallois-perret, FranceHQ recorded Nov 4, 2026	1,001-5,000	2,051 contacts →
	Exact match “At Keyrus, we help organizations move from experimental AI to industrialized AI, from isolated agents to orchestrated systems, and from insight to execution.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
24	Infotel	Exact match	Neuilly-sur-seine, FranceHQ recorded Nov 4, 2026	1,001-5,000	1,842 contacts →
	Exact match “Infotel accompagne les directions Informatiques et Métiers des grandes entreprises depuis 45 ans (Airbus, Air France, PSA, BNP Paribas, Banque de France ou encore BPCE, etc.).” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
25	OIL States International	Exact match	Houston, TX, United StatesHQ recorded Nov 4, 2026	5,001-10,000	1,831 contacts →
	Exact match “Oil States International, Inc.” Recorded in the RevenueBase company graph · Nov 4, 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 “oil and gas technology consultants”. 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 23,098 oil and gas technology consultants worldwide

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Oil and gas technology consultants worldwide at a glance

As of Nov 4, 2026

24.6%Verified-email coverage

37.0Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · Houston

Nov 4, 2026Page data refreshed

Companies by employee count

1-10

10,788

11-50

7,631

51-200

3,105

201-500

837

501-1,000

310

1,001-5,000

221

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 oil and gas technology consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “oil and gas technology consultants” 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 209,848 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 4, 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.

Oil and gas technology consultants by location

133 lists · largest first

Every Oil and gas technology consultants 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 “oil and gas technology consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas technology consultants are there worldwide?

RevenueBase identified 23,098 company matches for oil and gas technology consultants 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?

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

Which country has the most oil and gas technology consultants?

The United States leads with 4,388 companies, followed by India (2,131) and the United Kingdom (1,066). Every oil and gas technology consultants list by country and city is linked on this page.

Which city has the most oil and gas technology consultants?

Houston leads with 627 company records, followed by Calgary (347) and London (294).

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 209,848 professional contacts with verified work emails tracked across these 23,098 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 4, 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.