Company lists · Data refreshed September 2026

Top 25 Subsurface exploration companies based in the United States

Name: Subsurface exploration 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 22, 2026 562 companies tracked

RevenueBase identified 562 subsurface exploration companies headquartered in the United States as of September 2026 and tracks 6,604 professional contacts across them, including 2,323 with verified work emails. Houston is the largest hub.

This list covers subsurface exploration 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 22, 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 22, 2026 86% judged on-target in blind review

562Companies

6,604Contacts tracked

2,323Verified emails

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The 25 largest subsurface exploration companies based in the United States

Ranked by team size

Top 25 of 562 subsurface exploration companies based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to subsurface exploration 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	Saexploration	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	201-500	521 contacts →
	Indirect evidence “SAExploration offers a full range of geophysical ground acquisition services from design, prospecting, drilling, recording and analysis of field quality, as well as mobilization…” Source: RevenueBase Database · checked Sep 22, 2026
2	Stratum Reservoir	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	501-1,000	415 contacts →
	Indirect evidence “In 2019, Stratum Reservoir, formerly Weatherford Laboratories, became an independent and dynamic organization.” Source: RevenueBase Database · checked Sep 22, 2026
3	Degolyer And Macnaughton	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 22, 2026	201-500	268 contacts →
	Indirect evidence “Reserves assessments and appraisals • Prospective resources assessments • Unconventional resources assessments • Contingent resources assessments • Reservoir simulation •…” Source: RevenueBase Database · checked Sep 22, 2026
4	Cascade Environmental, LLC	Indirect evidence	Bothell, WA, United StatesHQ checked Sep 22, 2026	1,001-5,000	248 contacts →
	Indirect evidence “CASCADE is the leading provider of environmental and geotechnical drilling, site investigation and environmental remediation.” Source: RevenueBase Database · checked Sep 22, 2026
5	Small Mine Development, LLC	Indirect evidence	Boise, ID, United StatesHQ checked Sep 22, 2026	201-500	179 contacts →
	Indirect evidence “Small Mine Development builds and operates America’s underground mines.” Source: RevenueBase Database · checked Sep 22, 2026
6	Pro-Vac, LLC	Partial evidence	Puyallup, WA, United StatesHQ checked Sep 22, 2026	51-200	123 contacts →
	Partial evidence “We deliver safe, efficient, and innovative subsurface solutions to support the maintenance and construction of our communities’ critical infrastructure through our expansive fleet…” Source: RevenueBase Database · checked Sep 22, 2026
7	Geopoint	Partial evidence	Tampa, FL, United StatesHQ checked Sep 22, 2026	201-500	121 contacts →
	Partial evidence “One of the largest privately owned land surveying companies in Florida, GeoPoint provides standard-setting services including subsurface utility location, 811 locating…” Source: RevenueBase Database · checked Sep 22, 2026
8	Geosoftware	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 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 22, 2026
9	Benthic - Utec	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	51-200	115 contacts →
	Indirect evidence “Benthic is a global leader in offshore marine geotechnical investigation, survey, analysis and design.” Source: RevenueBase Database · checked Sep 22, 2026
10	Geoprobe Systems	Indirect evidence	Salina, KS, United StatesHQ checked Sep 22, 2026	51-200	107 contacts →
	Indirect evidence “Geoprobe® Manufactures Powerful, Compact Machines & Tooling that Provide Direct Push, Rotary, & Sonic Drilling Capabilities to the Environmental, Geotechnical, Geothermal, &…” Source: RevenueBase Database · checked Sep 22, 2026
11	Ivanhoe Electric	Partial evidence	Tempe, AZ, United StatesHQ checked Sep 22, 2026	51-200	105 contacts →
	Partial evidence “We are a United States-based minerals exploration and development company with a focus on supporting American supply chain independence by finding and delivering copper and other…” Source: RevenueBase Database · checked Sep 22, 2026
12	Arena Energy, LLC	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 22, 2026	51-200	91 contacts →
	Indirect evidence “Headquartered in The Woodlands, Texas, Arena Energy focuses on pursuing the lower-risk prospect opportunities that remain in the Gulf after 50 years of drilling by larger oil…” Source: RevenueBase Database · checked Sep 22, 2026
13	Microseismic, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	51-200	79 contacts →
	Indirect evidence “Specialist in Real-Time Completions Intelligence for Fracture Geometry & Efficiency \| Geohazards \| Stress Field \| CCUS \| Geothermal \| FDI \| Sinkhole Detection \| Induced Seismicity…” Source: RevenueBase Database · checked Sep 22, 2026
14	Rangefront Mining Services	Partial evidence	Elko, NV, United StatesHQ checked Sep 22, 2026	51-200	79 contacts →
	Partial evidence “Rangefront exists to serve your mining or exploration project in the most efficient, advanced, and forward-thinking way.” Source: RevenueBase Database · checked Sep 22, 2026
15	Shaft Drillers International	Indirect evidence	Mt Morris, PA, United StatesHQ checked Sep 22, 2026	1,001-5,000	78 contacts →
	Indirect evidence “Shaft Drillers International LLC Headquartered in Mt.” Source: RevenueBase Database · checked Sep 22, 2026
16	MES Mining	Indirect evidence	Sandy, UT, United StatesHQ checked Sep 22, 2026	11-50	77 contacts →
	Indirect evidence “Mining & Environmental Services LLC provides specialized technical expertise, at a high level of excellence, to support our Clients throughout the full process cycle of…” Source: RevenueBase Database · checked Sep 22, 2026
17	Trinity Subsurface, LLC	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 22, 2026	51-200	75 contacts →
	Indirect evidence “We want to be the first people you call when you need information or have a problem below the surface.” Source: RevenueBase Database · checked Sep 22, 2026
18	Collier Consulting & Collier Geophysics	Indirect evidence	Stephenville, TX, United StatesHQ checked Sep 22, 2026	51-200	71 contacts →
	Indirect evidence “Geoscience • Engineering • Geophysics Collier Consulting, Inc.” Source: RevenueBase Database · checked Sep 22, 2026
19	Midstates Petroleum Company LLC	Partial evidence	Tulsa, OK, United StatesHQ checked Sep 22, 2026	51-200	71 contacts →
	Partial evidence “Midstates Petroleum Company LLC is an independent exploration and production company focused on the application of modern drilling and completion techniques to oil/liquids-prone…” Source: RevenueBase Database · checked Sep 22, 2026
20	Lumina Geophysical	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 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 22, 2026
21	Zonge International	Indirect evidence	Reno, NV, United StatesHQ checked Sep 22, 2026	51-200	64 contacts →
	Indirect evidence “Minerals / Geothermal / Groundwater / Petroleum / Environmental / Infrastructure Are you concerned about ensuring every opportunity for success for your project and stakeholders?” Source: RevenueBase Database · checked Sep 22, 2026
22	Terra Guidance, LLC	Indirect evidence	Englewood, CO, United StatesHQ checked Sep 22, 2026	51-200	59 contacts →
	Indirect evidence “Terra Guidance provides geological analysis remotely, onsite, and in-house.” Source: RevenueBase Database · checked Sep 22, 2026
23	Paragon Geophysical Services, INC	Indirect evidence	Wichita, KS, United StatesHQ checked Sep 22, 2026	51-200	59 contacts →
	Indirect evidence “Headquartered in Wichita, Kansas, and founded in 1993, Paragon Geophysical Services, Inc.” Source: RevenueBase Database · checked Sep 22, 2026
24	Alpine Ocean Seismic Survey, INC	Indirect evidence	Norwood, NJ, United StatesHQ checked Sep 22, 2026	51-200	55 contacts →
	Indirect evidence “Alpine are experts in acquiring, analyzing, and interpreting data from marine offshore, nearshore, and freshwater environments.” Source: RevenueBase Database · checked Sep 22, 2026
25	Geometrics INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 22, 2026	51-200	52 contacts →
	Indirect evidence “Empowering geoscientists everywhere to explore and quantify the world since 1969.” Source: RevenueBase Database · checked Sep 22, 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: subsurface exploration 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 subsurface exploration companies.
Partial evidence: Its own public description names part of subsurface exploration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name subsurface exploration 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 562 subsurface exploration companies based in the United States

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Subsurface exploration companies based in the United States at a glance

As of Sep 22, 2026

35.2%Verified-email coverage

11.8Average contacts per company

1-10Median size (employees)

13.7%Largest-city concentration · Houston

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

324

11-50

171

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 562 companies.

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 subsurface exploration 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 “subsurface exploration 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 subsurface exploration 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 subsurface exploration 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, 2,323 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 22, 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.

Subsurface exploration companies by metro

Subsurface exploration companies in Houston77

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 subsurface exploration 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 subsurface exploration companies are there based in the United States?

RevenueBase identified 562 subsurface exploration 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?

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

Which city has the most subsurface exploration companies?

Houston leads with 77 headquartered companies, followed by Denver (15) and Dallas (12).

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 2,323 verified decision-maker contacts tracked across these 562 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 22, 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.