Company lists · Data refreshed September 2026

Top 25 Upstream operations software companies based in Houston, United States

Name: Upstream operations software companies based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 189 companies tracked

RevenueBase identified 189 upstream operations software companies headquartered in Houston, United States as of September 2026 and tracks 179,403 professional contacts across them, including 54,570 with verified work emails and 27,678 with mobile numbers. Houston is the largest hub.

This list covers upstream operations software companies headquartered in Houston, 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 13, 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 13, 2026 86% judged on-target in blind review

189Companies

179,403Contacts tracked

54,570Verified emails

27,678Mobile numbers

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The 25 largest upstream operations software companies based in Houston, United States

Ranked by team size

Top 25 of 189 upstream operations software companies based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 13, 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	SLB	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	10001+	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 13, 2026
2	Halliburton	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	10001+	53,380 contacts →
	Indirect evidence “We collaborate and engineer solutions to maximize asset value for our customers.” Source: RevenueBase Database · checked Sep 13, 2026
3	NOV	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	10001+	29,577 contacts →
	Indirect evidence “NOV delivers technology-driven solutions to empower the global energy industry.” Source: RevenueBase Database · checked Sep 13, 2026
4	Nabors Industries	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	10001+	5,865 contacts →
	Indirect evidence “Nabors Industries is a leading provider of advanced technology for the energy industry.” Source: RevenueBase Database · checked Sep 13, 2026
5	KEY Energy Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	1,001-5,000	2,755 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 13, 2026
6	Quorum Software	Partial evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	1,001-5,000	1,563 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 13, 2026
7	Core Laboratories	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	1,001-5,000	1,500 contacts →
	Indirect 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 13, 2026
8	Dril-Quip	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	1,001-5,000	1,387 contacts →
	Indirect evidence “Dril-Quip is part of Innovex, a unique energy industrial platform.” Source: RevenueBase Database · checked Sep 13, 2026
9	LMKR	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	501-1,000	777 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 13, 2026
10	Enervest, LTD	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	201-500	424 contacts →
	Indirect evidence “EnerVest is a top-tier, low-cost oil and natural gas operating company.” Source: RevenueBase Database · checked Sep 13, 2026
11	Rock Flow Dynamics	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	201-500	263 contacts →
	Indirect evidence “New technologies developed by the research and product development teams of Rock Flow Dynamics are integrated into the company’s flagship product – tNavigator.” Source: RevenueBase Database · checked Sep 13, 2026
12	ROGII	Partial evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	201-500	174 contacts →
	Partial evidence “ROGII is the leading technology provider for upstream Oil & Gas providing solutions for geoscience, drilling, and completions.” Source: RevenueBase Database · checked Sep 13, 2026
13	Geosoftware	Partial evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	51-200	115 contacts →
	Partial evidence “GeoSoftware is the global trusted partner for subsurface geoscience software and consulting services.” Source: RevenueBase Database · checked Sep 13, 2026
14	Enventure Global Technology INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	51-200	114 contacts →
	Indirect evidence “Enventure Global Technology is the world's leading provider of solid expandable technology for the oil & gas industry.” Source: RevenueBase Database · checked Sep 13, 2026
15	IPT Global	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	51-200	108 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 13, 2026
16	Enertia Software	Strong evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	51-200	108 contacts →
	Strong evidence “Enertia Software continues to lead the upstream oil and gas industry with integrated enterprise solutions for the upstream oil and gas industry.” Source: RevenueBase Database · checked Sep 13, 2026
17	Aquila Engineering	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	51-200	92 contacts →
	Indirect evidence “Aquila: Engineering The Future!” Source: RevenueBase Database · checked Sep 13, 2026
18	Combocurve	Partial evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	51-200	74 contacts →
	Partial evidence “ComboCurve is a industry leading cloud-based software solution for A&D, reservoir management, and forecasting in the energy sector.” Source: RevenueBase Database · checked Sep 13, 2026
19	INT	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	51-200	71 contacts →
	Indirect evidence “For more than three decades, we’ve supported geoscientists by creating products that help visualize, monitor, and analyze subsurface data from anywhere in the world.” Source: RevenueBase Database · checked Sep 13, 2026
20	Lumina Geophysical	Partial evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	51-200	69 contacts →
	Partial evidence “Lumina is a leading geophysical services solutions and software provider, specializing in innovative tools for subsurface data analysis in the energy industry.” Source: RevenueBase Database · checked Sep 13, 2026
21	Nutech	Partial evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	11-50	59 contacts →
	Partial evidence “NuTech is an upstream reservoir solutions company specializing in creating strategies to value, manage, and act on assets in all phases of the reservoir life cycle.” Source: RevenueBase Database · checked Sep 13, 2026
22	AKM Enterprises Inc. Akm-Ai	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	51-200	59 contacts →
	Indirect evidence “AKM ENTERPRISES INC.(AKM-AI) is a leading provider of SaaS Platform mining billions of data points (human and machine) to simplify engineering workflows for E&P operators during…” Source: RevenueBase Database · checked Sep 13, 2026
23	Tachyus	Partial evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	11-50	49 contacts →
	Partial evidence “Founded in 2014, Tachyus is a leader in operational optimization for the oil and gas industry.” Source: RevenueBase Database · checked Sep 13, 2026
24	Pason Systems USA Corp	Indirect evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	501-1,000	44 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 13, 2026
25	Toadfly Technologies, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 13, 2026	51-200	44 contacts →
	Partial evidence “Toadfly Technologies is an innovative industrial software organization that brings solutions to your exact needs.” Source: RevenueBase Database · checked Sep 13, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: upstream operations software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names upstream operations software companies.
Partial evidence: Its own public description names part of upstream operations software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name upstream operations software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 189 upstream operations software companies based in Houston, United States

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Upstream operations software companies based in Houston, United States at a glance

As of Sep 13, 2026

30.4%Verified-email coverage

15.4%Mobile-number coverage

949.2Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Houston

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 16.0d

40,2860–30

11,04931–60

22761–90

1890–180

2,990180+

Company record updated

Median 77.0d

00–30

53,85831–60

97,89861–90

20,52590–180

7,122180+

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 Houston, 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 Houston 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, 54,570 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 13, 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 in the United States

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 Houston, United States?

RevenueBase identified 189 upstream operations software companies headquartered in Houston, 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 54,570 verified decision-maker contacts tracked across these 189 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 13, 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.