Company lists · Data refreshed September 2026

Top 25 Oilfield software companies based in the United States

Name: Oilfield software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 1,638 companies tracked

RevenueBase identified 1,638 oilfield software companies headquartered in the United States as of September 2026 and tracks 238,880 professional contacts across them, including 71,380 with verified work emails and 45,018 with mobile numbers. Houston is the largest hub.

This list covers oilfield software companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

1,638Companies

238,880Contacts tracked

71,380Verified emails

45,018Mobile numbers

Unlock all 1,638 companies Free signup · no credit card · 500 free credits

The 25 largest oilfield software companies based in the United States

Ranked by team size

Top 25 of 1,638 oilfield software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names oilfield software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	SLBIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	10001+	76,561
	“SLB is a global technology company that has driven energy innovation for more than a century.” Source: company website · checked Sep 5, 2026
2	HalliburtonIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	10001+	53,380
	“We collaborate and engineer solutions to maximize asset value for our customers.” Source: company website · checked Sep 5, 2026
3	NOVIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	10001+	29,577
	“NOV delivers technology-driven solutions to empower the global energy industry.” Source: company website · checked Sep 5, 2026
4	EXPROIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	5,001-10,000	6,466
	“Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Source: company website · checked Sep 5, 2026
5	Nabors IndustriesIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	10001+	5,865
	“Nabors Industries is a leading provider of advanced technology for the energy industry.” Source: company website · checked Sep 5, 2026
6	FMC TechnologiesIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	10001+	4,749
	“FMC Technologies is now TechnipFMC.” Source: company website · checked Sep 5, 2026
7	KEY Energy ServicesIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,755
	“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Source: company website · checked Sep 5, 2026
8	OIL States InternationalIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	5,001-10,000	2,215
	“Oil States International, Inc.” Source: company website · checked Sep 5, 2026
9	Superior Energy ServicesPartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,938
	“For oil & gas exploration and production companies worldwide, Superior Energy Services is an oilfield products and services company with global reach, financial stability and…” Source: company website · checked Sep 5, 2026
10	TGSIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,775
	“TGS provides advanced data and intelligence to companies active in the energy sector.” Source: company website · checked Sep 5, 2026
11	Quorum SoftwarePartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,563
	“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: company website · checked Sep 5, 2026
12	Core LaboratoriesIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,500
	“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: company website · checked Sep 5, 2026
13	Dril-QuipIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,387
	“Dril-Quip is part of Innovex, a unique energy industrial platform.” Source: company website · checked Sep 5, 2026
14	R Associates INCIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	n/a	1,301
	“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: company website · checked Sep 5, 2026
15	Cudd Energy ServicesPartial evidence	The Woodlands, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,285
	“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: company website · checked Sep 5, 2026
16	NewparkIndirect evidence	Katy, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,244
	“Newpark Fluids Systems is the world’s leading pure-play oil & gas and geothermal fluid solutions provider.” Source: company website · checked Sep 5, 2026
17	Hal, INCIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	n/a	898
	“Since 1992, HAL, Inc.” Source: company website · checked Sep 5, 2026
18	KLX Energy ServicesPartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	857
	“KLX Energy Services provides more than 100 mission-critical oilfield services, tools, technologies and equipment to some of the industry’s leading operators.” Source: company website · checked Sep 5, 2026
19	LMKRIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	501-1,000	777
	“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: company website · checked Sep 5, 2026
20	Pioneer Energy ServicesIndirect evidence	San Antonio, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	770
	“Pioneer Energy Services is now Patterson-UTI” Source: company website · checked Sep 5, 2026
21	Nine Energy ServicePartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	712
	“With a culture built on high performance and flawless execution, Nine Energy Service is a unique kind of oilfield services company, offering industry-shaping completion solutions…” Source: company website · checked Sep 5, 2026
22	Cactus WellheadIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	703
	“Cactus designs, manufactures, sells and rents a range of highly-engineered wellheads and pressure control equipment.” Source: company website · checked Sep 5, 2026
23	Energy ExemplarIndirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 5, 2026	501-1,000	699
	“In an era where the world is rapidly advancing towards a cleaner future through decarbonization, Energy Exemplar’s mission lies in ‘Empowering Transformative Energy Decisions’🪫…” Source: company website · checked Sep 5, 2026
24	Worldwide Oilfield MachinePartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	635
	“Worldwide Oilfield Machine (WOM) is a multinational equipment manufacturer specializing in solutions for drilling, testing, production and intervention operations.” Source: company website · checked Sep 5, 2026
25	ION GEOIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	583
	“ION commenced the voluntary Chapter 11 process with lender support and DIP financing in April 2022.” Source: company website · checked Sep 5, 2026

Showing 25 of 1,638 oilfield software companies based in the United States

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Oilfield software companies based in the United States at a glance

As of Sep 5, 2026

11-50Median size (employees)

HoustonLargest hub · 446 HQs

45,018Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

633

11-50

548

51-200

298

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

64,015

31–60

4,235

61–90

90–180

180+

3,088

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 oilfield software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “oilfield software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among oilfield software companies, 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 an evidence 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, 71,380 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 5, 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.

Oilfield software companies by metro

Frequently asked

How many oilfield software companies are there based in the United States?

RevenueBase identified 1,638 oilfield software companies 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?

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

Which city has the most oilfield software companies?

Houston leads with 446 headquartered companies, followed by Midland (82) and Odessa (42).

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 71,380 verified decision-maker contacts tracked across these 1,638 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 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.