Company lists · Data refreshed September 2026

Top 25 Oil and gas software developers worldwide

RevenueBase identified 3,724 oil and gas software developers worldwide as of September 2026 and tracks 283,754 professional contacts across them, including 77,742 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers oil and gas software developers 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 developers 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
3,724Companies
283,754Contacts tracked
77,742Verified emails
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The 25 largest oil and gas software developers worldwide

Ranked by team size
Top 25 of 3,724 oil and gas software developers 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 developers: 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 evidenceLondres, United KingdomHQ checked Sep 29, 20265,001-10,0005,220 contacts →

Indirect evidence

“Founded over thirty years ago, Perenco is an independent hydrocarbon producer involved in the entire lifecycle of projects, from exploration to decommissioning.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceCatu, BrazilHQ checked Sep 29, 20261,001-5,0002,946 contacts →

Indirect evidence

“A PERBRAS é uma empresa brasileira que atua há 50 anos no mercado de Petróleo e Gás em diversas regiões do Brasil.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect 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
9Indirect 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
10Indirect 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
11Partial 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
12Strong 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
13Partial 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
14Indirect 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
15Indirect 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
16Strong 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
17Strong evidenceLibyaHQ checked Sep 29, 20261,001-5,0001,282 contacts →

Strong evidence

“oil and gas”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect 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
19Indirect evidenceAllerød, DenmarkHQ checked Sep 29, 2026501-1,0001,043 contacts →

Indirect evidence

“Welltec® is a global technology company that develops and provides efficient, hi-tech solutions for the energy industry.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceQuito - El Coca, EcuadorHQ checked Sep 29, 20261,001-5,0001,021 contacts →

Indirect evidence

“SERTECPET® is a multinational company specialized in providing worldwide Integrated Energy Solutions with state-of-the-art technology.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLondon W2 2es, United KingdomHQ checked Sep 29, 20261,001-5,000933 contacts →

Indirect evidence

“Excellence Logging is an established energy services provider focused on optimizing well performance.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 2026n/a898 contacts →

Indirect evidence

“Since 1992, HAL, Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceVung Tau, VietnamHQ checked Sep 29, 20265,001-10,000793 contacts →

Indirect evidence

“Exploration and development oilfield”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 2026501-1,000777 contacts →

Indirect evidence

“Founded in 1994 and built on a strong geoscience and data management footprint, LMKR has evolved into a premier technology company expanding its reach to Clean Energy…”

Source: RevenueBase Database · checked Sep 29, 2026
25Strong evidenceUsa, United KingdomHQ checked Sep 29, 2026501-1,000665 contacts →

Strong evidence

“Delta Corporation specializes in the design and manufacture of API-compliant wellhead equipment and pressure control systems for both onshore and offshore oil and gas operations.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 3,724 oil and gas software developers worldwide

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Oil and gas software developers worldwide at a glance

As of Sep 29, 2026
27.4%Verified-email coverage
76.2Average contacts per company
11-50Median size (employees)
7.4%Largest-city concentration · Houston
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,527
11-50
1,298
51-200
580
201-500
158
501-1,000
59
1,001-5,000
60
5,001-10,000
15
10001+
18

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 developers, 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 developers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “oil and gas software developers”. 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 developers), 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 developers, 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, 77,742 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 developers by location

31 lists · largest first

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

RevenueBase identified 3,724 oil and gas software developers 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 developers?

The United States leads with 970 companies, followed by Canada (267) and the United Kingdom (250). Every oil and gas software developers list by country and city is linked on this page.

Which city has the most oil and gas software developers?

Houston leads with 275 headquartered companies, followed by Calgary (178) and Tehran (67).

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 77,742 verified decision-maker contacts tracked across these 3,724 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.