Company lists · Data refreshed September 2026

Top 25 Upstream operations software companies based in the United States

RevenueBase identified 511 upstream operations software companies headquartered in the United States as of September 2026 and tracks 185,169 professional contacts across them, including 56,894 with verified work emails and 29,592 with mobile numbers. Houston is the largest hub.

This list covers upstream operations 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.

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 6, 2026 86% judged on-target in blind review
511Companies
185,169Contacts tracked
56,894Verified emails
29,592Mobile numbers
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The 25 largest upstream operations software companies based in the United States

Ranked by team size
Top 25 of 511 upstream operations software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to upstream operations software companies: 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 6, 202610001+76,561 contacts →

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

Source: company website · checked Sep 6, 2026
2Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202610001+53,380 contacts →

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

Source: company website · checked Sep 6, 2026
3Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202610001+29,577 contacts →

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

Source: company website · checked Sep 6, 2026
4Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202610001+5,865 contacts →

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

Source: company website · checked Sep 6, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 20261,001-5,0002,755 contacts →

“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.”

Source: company website · checked Sep 6, 2026
6Partial evidenceHouston, TX, United StatesHQ checked Sep 6, 20261,001-5,0001,563 contacts →

“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 6, 2026
7Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 20261,001-5,0001,500 contacts →

“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 6, 2026
8Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 20261,001-5,0001,387 contacts →

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

Source: company website · checked Sep 6, 2026
9Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 2026501-1,000777 contacts →

“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 6, 2026
10Indirect evidenceSalt Lake City, UT, United StatesHQ checked Sep 6, 2026501-1,000699 contacts →

“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 6, 2026
11Strong evidenceDenver, CO, United StatesHQ checked Sep 6, 2026201-500466 contacts →

“IFS Energy and Resources is the world’s largest independent provider of software and data solutions exclusively serving the upstream oil and gas, mining, and resource industries.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-500424 contacts →

“EnerVest is a top-tier, low-cost oil and natural gas operating company.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceMissouri City, TX, United StatesHQ checked Sep 6, 2026201-500396 contacts →

“GGS provides an integrated suite of Geoscience solutions to the global oil and gas industry including high-resolution RG-3D Reservoir Grade® seismic data acquisition, Multi Client…”

Source: company website · checked Sep 6, 2026
14Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-500263 contacts →

“New technologies developed by the research and product development teams of Rock Flow Dynamics are integrated into the company’s flagship product – tNavigator.”

Source: company website · checked Sep 6, 2026
15Partial evidenceAbilene, TX, United StatesHQ checked Sep 6, 202651-200178 contacts →

“PakEnergy provides Business Automation Software for the oil & gas industry.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceStafford, TX, United StatesHQ checked Sep 6, 2026201-500178 contacts →

“Reservoir Group is a world-class niche oilfield services company that has been addressing customer challenges for more than 70 years.”

Source: company website · checked Sep 6, 2026
17Partial evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-500174 contacts →

“ROGII is the leading technology provider for upstream Oil & Gas providing solutions for geoscience, drilling, and completions.”

Source: company website · checked Sep 6, 2026
18Indirect evidencePlano, TX, United StatesHQ checked Sep 6, 202651-200134 contacts →

“PetroTel is recognized worldwide as an industry leader in enhanced oil recovery, reservoir characterization and simulation, coalbed methane, production, and exploration…”

Source: company website · checked Sep 6, 2026
19Indirect evidencePinehurst, TX, United StatesHQ checked Sep 6, 202651-200133 contacts →

“The Company was formed as Midwest Well Logging in December 1964 by Hoyt Hudspeth and Harold McConnell.”

Source: company website · checked Sep 6, 2026
20Partial evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-200115 contacts →

“GeoSoftware is the global trusted partner for subsurface geoscience software and consulting services.”

Source: company website · checked Sep 6, 2026
21Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-200114 contacts →

“Enventure Global Technology is the world's leading provider of solid expandable technology for the oil & gas industry.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-200108 contacts →

“IPT Global is the pioneer and recognized global leader in digital well assurance, trusted by major operators and drilling contractors worldwide to deliver well schematics…”

Source: company website · checked Sep 6, 2026
23Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-200108 contacts →

“Enertia Software continues to lead the upstream oil and gas industry with integrated enterprise solutions for the upstream oil and gas industry.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceWeatherford, OK, United StatesHQ checked Sep 6, 202651-20098 contacts →

“Impac Exploration Services, Inc.”

Source: company website · checked Sep 6, 2026
25Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-20092 contacts →

“Aquila: Engineering The Future!”

Source: company website · checked Sep 6, 2026

Showing 25 of 511 upstream operations software companies based in the United States

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Upstream operations software companies based in the United States at a glance

As of Sep 6, 2026
30.7%Verified-email coverage
16.0%Mobile-number coverage
362.4Average contacts per company
11-50Median size (employees)
37.0%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
244
11-50
167
51-200
65
201-500
14
501-1,000
3
1,001-5,000
12
5,001-10,000
1
10001+
5

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 upstream operations software companies, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “upstream operations software companies”. 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 upstream operations software companies), 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 upstream operations 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 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, 56,894 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 6, 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.

Upstream operations software companies by metro

  • Upstream operations software companies in Houston189
  • Upstream operations software companies in Denver25

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 upstream operations software companies, 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 upstream operations software companies are there based in the United States?

RevenueBase identified 511 upstream operations 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 upstream operations software companies?

Houston leads with 189 headquartered companies, followed by Denver (25) and Oklahoma City (16).

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 56,894 verified decision-maker contacts tracked across these 511 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 6, 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.