Company lists · Data refreshed September 2026

Top 25 Geological survey companies based in the United States

RevenueBase identified 782 company matches for geological survey companies associated with the United States as of September 2026 and tracks 8,456 professional contacts across them, including 3,102 with verified work emails. Houston is the largest hub.

This list covers company matches for geological survey companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
782Companies
8,456Contacts tracked
3,102Verified emails
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The 25 largest geological survey companies based in the United States

Ranked by team size
Top 25 of 782 company matches for geological survey companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, TX, United StatesHQ recorded Sep 20, 2026201-500521 contacts →

Exact match

“SAExploration offers a full range of geophysical ground acquisition services from design, prospecting, drilling, recording and analysis of field quality, as well as mobilization…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchBenbrook, TX, United StatesHQ recorded Sep 20, 2026201-500335 contacts →

Exact match

“What began as a small company in the oilfields of Southern Oklahoma, today Topographic Land Surveyors stands as the industry leader in the fields of Surveying, Mapping…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchDallas, TX, United StatesHQ recorded Sep 20, 2026201-500268 contacts →

Exact match

“Reserves assessments and appraisals • Prospective resources assessments • Unconventional resources assessments • Contingent resources assessments • Reservoir simulation •…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchBothell, WA, United StatesHQ recorded Sep 20, 20261,001-5,000248 contacts →

Exact match

“CASCADE is the leading provider of environmental and geotechnical drilling, site investigation and environmental remediation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchFayetteville, AR, United StatesHQ recorded Sep 20, 2026201-500189 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchFort Worth, TX, United StatesHQ recorded Sep 20, 2026201-500166 contacts →

Exact match

“Transglobal Services, LLC (TGS) provides surveying, land services, GIS, mapping, and environmental services to the construction industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchWarren, NJ, United StatesHQ recorded Sep 20, 2026201-500151 contacts →

Exact match

“For over 30 years, Control Point has provided the talent needed for the jobs and projects critical to client success by delivering quality survey documents in a cost-effective and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchMonrovia, CA, United StatesHQ recorded Sep 20, 202651-200132 contacts →

Exact match

“Converse was established in 1946 by Professor Frederick J.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchTampa, FL, United StatesHQ recorded Sep 20, 2026201-500121 contacts →

Exact match

“One of the largest privately owned land surveying companies in Florida, GeoPoint provides standard-setting services including subsurface utility location, 811 locating…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Sep 20, 202651-200115 contacts →

Exact match

“Benthic is a global leader in offshore marine geotechnical investigation, survey, analysis and design.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchCleveland, OH, United StatesHQ recorded Sep 20, 2026201-500105 contacts →

Exact match

“Exacta Land Surveying provides surveying services to homeowners, homebuyers, title insurers, mortgage lenders, Realtors and other real estate professionals.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202651-200102 contacts →

Exact match

“Established in 1946, Feldman is a 100-person Geospatial firm led by 10, Registered Professional Land Surveyors and a staff solely dedicated to the practice of Land Surveying, 3D…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchTampa, FL, United StatesHQ recorded Sep 20, 202651-20088 contacts →

Exact match

“Sdii Global Corporation (SDII) is an industry-leading forensic engineering and earth sciences firm, recognized by its clients as the foremost source of experts to have as their…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchRidgeland, SC, United StatesHQ recorded Sep 20, 202651-20081 contacts →

Exact match

“Atlas Surveying is a full service land surveying company, established in 2004 by William H.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Sep 20, 202651-20079 contacts →

Exact match

“Specialist in Real-Time Completions Intelligence for Fracture Geometry & Efficiency | Geohazards | Stress Field | CCUS | Geothermal | FDI | Sinkhole Detection | Induced Seismicity…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchElko, NV, United StatesHQ recorded Sep 20, 202651-20079 contacts →

Exact match

“Rangefront exists to serve your mining or exploration project in the most efficient, advanced, and forward-thinking way.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchStephenville, TX, United StatesHQ recorded Sep 20, 202651-20071 contacts →

Exact match

“Geoscience • Engineering • Geophysics Collier Consulting, Inc.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchLicensed In: La, ND, United StatesHQ recorded Sep 20, 202651-20070 contacts →

Exact match

“Here at NTBA, we have a three-pronged focus: engineering, surveying, and geographic information systems.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchReno, NV, United StatesHQ recorded Sep 20, 202651-20064 contacts →

Exact match

“Minerals / Geothermal / Groundwater / Petroleum / Environmental / Infrastructure Are you concerned about ensuring every opportunity for success for your project and stakeholders?”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchEnglewood, CO, United StatesHQ recorded Sep 20, 202651-20059 contacts →

Exact match

“Terra Guidance provides geological analysis remotely, onsite, and in-house.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchWichita, KS, United StatesHQ recorded Sep 20, 202651-20059 contacts →

Exact match

“Headquartered in Wichita, Kansas, and founded in 1993, Paragon Geophysical Services, Inc.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchWestminster, CO, United StatesHQ recorded Sep 20, 202651-20055 contacts →

Exact match

“Ascent Geomatics provides Land Surveying, Remote Sensing, GIS, Civil Engineering, Permitting, and Project Management services to the Energy Industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchNorwood, NJ, United StatesHQ recorded Sep 20, 202651-20055 contacts →

Exact match

“Alpine are experts in acquiring, analyzing, and interpreting data from marine offshore, nearshore, and freshwater environments.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchSan Jose, CA, United StatesHQ recorded Sep 20, 202651-20052 contacts →

Exact match

“Empowering geoscientists everywhere to explore and quantify the world since 1969.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchTucson, AZ, United StatesHQ recorded Sep 20, 202651-20052 contacts →

Exact match

“CALL & NICHOLAS (CNI) is an international mining consulting firm that specializes in geological engineering, geotechnical engineering, and hydrogeology.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 782 geological survey companies based in the United States

See the full list, filter by size, metro and specialty, and access 3,102 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geological survey companies based in the United States at a glance

As of Sep 20, 2026
36.7%Verified-email coverage
10.8Average contacts per company
1-10Median size (employees)
8.2%Largest-city concentration · Houston
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
416
11-50
275
51-200
70
201-500
17
1,001-5,000
2
10001+
1

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 782 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “geological survey companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 3,102 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geological survey companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geological survey companies are there based in the United States?

RevenueBase identified 782 company matches for geological survey companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Saexploration tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geological survey companies?

Houston leads with 64 company records, followed by Denver (11) and Midland (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,102 professional contacts with verified work emails tracked across these 782 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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.