Company lists · Data refreshed September 2026

Top 25 Oil and gas software consultants worldwide

RevenueBase identified 11,306 oil and gas software consultants worldwide as of September 2026 and tracks 458,169 professional contacts across them, including 101,969 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers oil and gas software consultants worldwide, 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 29, 2026. Country and city lists for oil and gas software consultants follow the table.

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 29, 2026 86% judged on-target in blind review
11,306Companies
458,169Contacts tracked
101,969Verified emails
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The 25 largest oil and gas software consultants worldwide

Ranked by team size
Top 25 of 11,306 oil and gas software consultants worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas software consultants: 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 29, 202610001+76,561 contacts →

Indirect evidence

“SLB is a global technology company that has driven energy innovation for more than a century.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 202610001+53,380 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 202610001+29,577 contacts →

Indirect evidence

“NOV delivers technology-driven solutions to empower the global energy industry.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceFornebu, NorwayHQ checked Sep 29, 202610001+15,774 contacts →

Indirect evidence

“Aker Solutions is a global engineering and technology company known for delivering complex energy projects with trusted quality and predictable results.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 202610001+5,865 contacts →

Indirect evidence

“Nabors Industries is a leading provider of advanced technology for the energy industry.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceCanning, IndiaHQ checked Sep 29, 20265,001-10,0005,012 contacts →

Indirect evidence

“Since 1948 we specialize in projects for the energy industry.”

Source: RevenueBase Database · checked Sep 29, 2026
7Strong evidenceJakarta Selatan, IndonesiaHQ checked Sep 29, 20261,001-5,0003,932 contacts →

Strong evidence

“We are the one and only national company that possesses combined competencies in oil & gas services: seismic, drilling and oilfield.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceLisle, IL, United StatesHQ checked Sep 29, 20261,001-5,0002,966 contacts →

Partial evidence

“ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 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 29, 2026
10Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 29, 20261,001-5,0002,427 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 29, 20261,001-5,0002,249 contacts →

Indirect evidence

“OiLSERV is a provider of an expanding range of oilfield services, including well logging, well testing, production enhancement, drilling services, surface production management…”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceHouston, TX, United StatesHQ checked Sep 29, 20265,001-10,0002,215 contacts →

Partial evidence

“Oil States International, Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 29, 20261,001-5,0001,685 contacts →

Indirect evidence

“Every year, drilling teams make decisions worth millions of dollars on incomplete information.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceAbu Dhabi, United Arab EmiratesHQ checked Sep 29, 20261,001-5,0001,638 contacts →

Indirect evidence

“At Robt.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceHouston, TX, United StatesHQ checked Sep 29, 20261,001-5,0001,563 contacts →

Partial evidence

“Quorum Software is a leading provider of energy software worldwide powering growth and profitability for energy businesses by connecting people, workflows, and systems with…”

Source: RevenueBase Database · checked Sep 29, 2026
16Strong evidenceÇankaya, TürkiyeHQ checked Sep 29, 2026501-1,0001,501 contacts →

Strong evidence

“TP-OTC is established to provide all engineering and technology services for offshore operations in oil and gas industry.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceHouston, TX, United StatesHQ checked Sep 29, 20261,001-5,0001,500 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 29, 20265,001-10,0001,407 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 20261,001-5,0001,387 contacts →

Indirect evidence

“Dril-Quip is part of Innovex, a unique energy industrial platform.”

Source: RevenueBase Database · checked Sep 29, 2026
20Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 2026n/a1,301 contacts →

Strong evidence

“Based in Houston, RAI has been in business over 30 years, providing hardware, support and professional services to Oil and Gas companies around the world.”

Source: RevenueBase Database · checked Sep 29, 2026
21Strong evidenceThe Woodlands, TX, United StatesHQ checked Sep 29, 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 29, 2026
22Strong evidenceLibyaHQ checked Sep 29, 20261,001-5,0001,282 contacts →

Strong evidence

“oil and gas”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceMuscat, OmanHQ checked Sep 29, 20261,001-5,0001,244 contacts →

Indirect evidence

“Abraj Energy Services ("Abraj"), was founded in May 2006 and has taken major strides.”

Source: RevenueBase Database · checked Sep 29, 2026
24Strong evidenceUnited StatesHQ checked Sep 29, 20261,001-5,0001,226 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
25Strong evidenceRiyadh, Saudi ArabiaHQ checked Sep 29, 20261,001-5,0001,113 contacts →

Strong evidence

“Zuhair Fayez stands as the region's foremost engineering and consulting firm, renowned for our innovative approach in architecture, project management, and oil and gas services.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 11,306 oil and gas software consultants worldwide

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Oil and gas software consultants worldwide at a glance

As of Sep 29, 2026
22.3%Verified-email coverage
40.5Average contacts per company
11-50Median size (employees)
5.6%Largest-city concentration · Houston
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
4,779
11-50
3,738
51-200
1,785
201-500
555
501-1,000
199
1,001-5,000
165
5,001-10,000
28
10001+
27

Email recency is reported on each country list linked below.

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 software consultants, 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.
Coverage
Every country. Country and city lists for oil and gas software consultants are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “oil and gas software consultants”. 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 software consultants), 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 software consultants, and records with no verified work email.
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, 101,969 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 29, 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.

Oil and gas software consultants by location

71 lists · largest first

Every Oil and gas software 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 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 software consultants, 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 software consultants are there worldwide?

RevenueBase identified 11,306 oil and gas software consultants worldwide 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?

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

Which country has the most oil and gas software consultants?

The United States leads with 2,359 companies, followed by the United Kingdom (773) and Canada (616). Every oil and gas software consultants list by country and city is linked on this page.

Which city has the most oil and gas software consultants?

Houston leads with 633 headquartered companies, followed by Calgary (378) and Tehran (209).

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 101,969 verified decision-maker contacts tracked across these 11,306 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 29, 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.