Company lists · Data refreshed November 2026
Top 25 Subsurface investigation firms worldwide
RevenueBase identified 5,265 company matches for subsurface investigation firms worldwide as of November 2026 and tracks 65,708 professional contacts across them, including 20,103 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers company matches for subsurface investigation firms worldwide, 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 November 6, 2026. Country and city lists for subsurface investigation firms follow the table.
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.
The 25 largest subsurface investigation firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,363 contacts → | ||||
Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 671 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 594 contacts → | ||||
Exact match “ARGAS, since its inception in 1966, was focused on developing Geological and Geophysical field solutions to further explore the earth’s Natural Resources.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 503 contacts → | ||||
Exact match “Geo-Technology Associates, Inc.(GTA) proudly celebrates more than 40 years of service, backed by a team of 600+ professionals-including geotechnical engineers, environmental…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 474 contacts → | ||||
Exact match “Fondé en 1993 et établi dans onze régions du Québec et en Ontario.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 465 contacts → | ||||
Exact match “Construction Sciences is a construction materials testing, geotechnical engineering, environmental consulting and specialised testing firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 408 contacts → | ||||
Exact match “Fundada em 1981, a empresa é focada na execução de serviços especiais de geologia, engenharia geotécnica e recuperação de estruturas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 376 contacts → | ||||
Exact match “We are the world’s leading Geo-data specialist, collecting and analysing comprehensive information about the Earth and the structures built upon it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 348 contacts → | ||||
Exact match “With a marketplace presence of more than three decades, GEOCONTROLE - Geotecnia e Estruturas de Fundação, S.A.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 347 contacts → | ||||
Exact match “ConeTec is a full-service geotechnical, geoenvironmental, and mining site investigation contractor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 347 contacts → | ||||
Exact match “We deliver innovative geophysical, geological and geotechnical solutions for energy sector as well as renewable energy in Poland and worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 338 contacts → | ||||
Exact match “Ninyo & Moore was acquired by SOCOTEC US.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 333 contacts → | ||||
Exact match “Established in 1881, Froehling & Robertson, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 332 contacts → | ||||
Exact match “CMW Geosciences is a specialist geotechnical consultancy delivering first-class geotech engineering services throughout Australia and New Zealand.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 328 contacts → | ||||
Exact match “Somos a BVP Geotecnia e Hidrotecnia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 315 contacts → | ||||
Exact match “Hillis-Carnes Engineering Associates, Inc.(HCEA) is a Mid-Atlantic based, multi-disciplined consulting engineering firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 294 contacts → | ||||
Exact match “ENGEO Incorporated is an award-winning, employee-owned comprehensive provider of more than 400 geotechnical and civil engineers, geologists, GIS experts, environmental scientists…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 289 contacts → | ||||
Exact match “Capital Surveys was founded in 1996 by Eng.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 272 contacts → | ||||
Exact match “Prospectiuni SA is a major provider of geophysical expertise, with over 60 years of experience in the Romanian Oil and Gas industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 262 contacts → | ||||
Exact match “CASCADE is the leading provider of environmental and geotechnical drilling, site investigation and environmental remediation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 259 contacts → | ||||
Exact match “Paterson & Cooke is a global mining consulting firm renowned and trusted for its expertise in a wide range of areas that include tailings and mine waste handling, long distance…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 250 contacts → | ||||
Exact match “Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 241 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 230 contacts → | ||||
Exact match “GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 228 contacts → | ||||
Exact match “INSERSA (Ingeniería de Suelos y Explotación de Recursos, S.A.) se constituyó en 1988 con una actividad inicial en sondeos y perforaciones mineras, en la que actualmente es líder…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “subsurface investigation firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 5,265 subsurface investigation firms worldwide
See the full list, filter by size, metro and specialty, and access 20,103 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Subsurface investigation firms worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for subsurface investigation firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “subsurface investigation firms” 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. 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 20,103 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 November 6, 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.
Subsurface investigation firms by location
24 lists · largest firstEvery Subsurface investigation firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsurface investigation firms based in the United States1,077
- Subsurface investigation firms based in the United Kingdom314
- Subsurface investigation firms based in Brazil281
- Subsurface investigation firms based in France266
- Subsurface investigation firms based in Canada237
- Subsurface investigation firms based in Italy214
- Subsurface investigation firms based in Germany207
- Subsurface investigation firms based in Australia205
- Subsurface investigation firms based in India152
- Subsurface investigation firms based in Türkiye137
- Subsurface investigation firms based in Spain91
- Subsurface investigation firms based in Chile83
- Subsurface investigation firms based in the Netherlands76
- Subsurface investigation firms based in South Africa71
- Subsurface investigation firms based in Poland59
- Subsurface investigation firms based in Switzerland45
- Subsurface investigation firms based in New Zealand42
- Subsurface investigation firms based in Belgium40
- Subsurface investigation firms based in Saudi Arabia39
- Subsurface investigation firms based in the United Arab Emirates35
- Subsurface investigation firms based in Sweden26
Cities
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 “subsurface investigation firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many subsurface investigation firms are there worldwide?
RevenueBase identified 5,265 company matches for subsurface investigation firms worldwide as of November 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?
ECS Group Of Companies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most subsurface investigation firms?
The United States leads with 1,077 companies, followed by the United Kingdom (314) and Brazil (281). Every subsurface investigation firms list by country and city is linked on this page.
Which city has the most subsurface investigation firms?
Sao Paulo leads with 44 company records, followed by Belo Horizonte (42) and Houston (26).
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 20,103 professional contacts with verified work emails tracked across these 5,265 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 5,265 subsurface investigation firms worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 subsurface investigation firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 5,265 matching company records for subsurface investigation firms worldwide, with 65,708 tracked contacts and 20,103 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 subsurface investigation firms worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  ECS Group Of Companiesecslimited.comHQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 2,363 contacts → |
“ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Saexplorationsaexploration.comHQ: Houston, AB, United StatesReported employees: 201-500 | Houston, AB, United States | 201-500 | Exact match | 671 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  ARGASargas.comHQ: 4204 King Fahd Road, Saudi ArabiaReported employees: 1,001-5,000 | 4204 King Fahd Road, Saudi Arabia | 1,001-5,000 | Exact match | 594 contacts → |
“ARGAS, since its inception in 1966, was focused on developing Geological and Geophysical field solutions to further explore the earth’s Natural Resources.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Geo-Technology Associates, Inc. GTAgtaeng.comHQ: Abingdon, OH, United KingdomReported employees: 501-1,000 | Abingdon, OH, United Kingdom | 501-1,000 | Exact match | 503 contacts → |
“Geo-Technology Associates, Inc.(GTA) proudly celebrates more than 40 years of service, backed by a team of 600+ professionals-including geotechnical engineers, environmental…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Groupe ABSgroupeabs.comHQ: Montréal, QC, CanadaReported employees: 501-1,000 | Montréal, QC, Canada | 501-1,000 | Exact match | 474 contacts → |
“Fondé en 1993 et établi dans onze régions du Québec et en Ontario.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Construction Sciencesconstructionsciences.netHQ: Albion, AustraliaReported employees: 1,001-5,000 | Albion, Australia | 1,001-5,000 | Exact match | 465 contacts → |
“Construction Sciences is a construction materials testing, geotechnical engineering, environmental consulting and specialised testing firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Progeo Engenharia Ltdaprogeo.com.brHQ: Belo Horizonte, BrazilReported employees: 501-1,000 | Belo Horizonte, Brazil | 501-1,000 | Exact match | 408 contacts → |
“Fundada em 1981, a empresa é focada na execução de serviços especiais de geologia, engenharia geotécnica e recuperação de estruturas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Fugro Suhaimi Company LTDfugro-suhaimi.comHQ: Dammam, Saudi ArabiaReported employees: 501-1,000 | Dammam, Saudi Arabia | 501-1,000 | Exact match | 376 contacts → |
“We are the world’s leading Geo-data specialist, collecting and analysing comprehensive information about the Earth and the structures built upon it.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Geocontrolegeocontrole.comHQ: Lisbon, PortugalReported employees: 501-1,000 | Lisbon, Portugal | 501-1,000 | Exact match | 348 contacts → |
“With a marketplace presence of more than three decades, GEOCONTROLE - Geotecnia e Estruturas de Fundação, S.A.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Conetecconetec.comHQ: Burnaby, NJ, CanadaReported employees: 501-1,000 | Burnaby, NJ, Canada | 501-1,000 | Exact match | 347 contacts → |
“ConeTec is a full-service geotechnical, geoenvironmental, and mining site investigation contractor.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Geofizyka Torun S.Agtservices.plHQ: Toruń, PolandReported employees: 1,001-5,000 | Toruń, Poland | 1,001-5,000 | Exact match | 347 contacts → |
“We deliver innovative geophysical, geological and geotechnical solutions for energy sector as well as renewable energy in Poland and worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Ninyo & Moore, A Socotec Companysocotec.usHQ: San Diego, CA, United StatesReported employees: 501-1,000 | San Diego, CA, United States | 501-1,000 | Exact match | 338 contacts → |
“Ninyo & Moore was acquired by SOCOTEC US.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Froehling & Robertson, INCfandr.comHQ: Richmond, VA, United StatesReported employees: 201-500 | Richmond, VA, United States | 201-500 | Exact match | 333 contacts → |
“Established in 1881, Froehling & Robertson, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  CMW Geosciencescmwgeosciences.comHQ: Perth, United StatesReported employees: 201-500 | Perth, United States | 201-500 | Exact match | 332 contacts → |
“CMW Geosciences is a specialist geotechnical consultancy delivering first-class geotech engineering services throughout Australia and New Zealand.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  BVP Geotecnia E Hidrotecniabvp.eng.brHQ: Belo Horizonte, BrazilReported employees: 201-500 | Belo Horizonte, Brazil | 201-500 | Exact match | 328 contacts → |
“Somos a BVP Geotecnia e Hidrotecnia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Annapolis Junction, PA, United StatesReported employees: 201-500 | Annapolis Junction, PA, United States | 201-500 | Exact match | 315 contacts → |
“Hillis-Carnes Engineering Associates, Inc.(HCEA) is a Mid-Atlantic based, multi-disciplined consulting engineering firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  ENGEOengeo.comHQ: San Ramon, CA, United StatesReported employees: 201-500 | San Ramon, CA, United States | 201-500 | Exact match | 294 contacts → |
“ENGEO Incorporated is an award-winning, employee-owned comprehensive provider of more than 400 geotechnical and civil engineers, geologists, GIS experts, environmental scientists…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Capital Surveyscapital-surveys.comHQ: Mohamed Bin Zayed City, United Arab EmiratesReported employees: 501-1,000 | Mohamed Bin Zayed City, United Arab Emirates | 501-1,000 | Exact match | 289 contacts → |
“Capital Surveys was founded in 1996 by Eng.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Prospectiuni S.Aprospectiuni.comHQ: Bucharest, RomaniaReported employees: 1,001-5,000 | Bucharest, Romania | 1,001-5,000 | Exact match | 272 contacts → |
“Prospectiuni SA is a major provider of geophysical expertise, with over 60 years of experience in the Romanian Oil and Gas industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Cascade Environmental, LLCcascade-env.comHQ: Bothell, WA, United StatesReported employees: 1,001-5,000 | Bothell, WA, United States | 1,001-5,000 | Exact match | 262 contacts → |
“CASCADE is the leading provider of environmental and geotechnical drilling, site investigation and environmental remediation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Paterson & Cookepatersoncooke.comHQ: Cape Town, South AfricaReported employees: 201-500 | Cape Town, South Africa | 201-500 | Exact match | 259 contacts → |
“Paterson & Cooke is a global mining consulting firm renowned and trusted for its expertise in a wide range of areas that include tailings and mine waste handling, long distance…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  DF Engineeringdfmais.eng.brHQ: Belo Horizonte, BrazilReported employees: 201-500 | Belo Horizonte, Brazil | 201-500 | Exact match | 250 contacts → |
“Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Solmatech INCsolmatech.caHQ: Repentigny, QC, CanadaReported employees: 201-500 | Repentigny, QC, Canada | 201-500 | Exact match | 241 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 |  Geoceangeocean.comHQ: Cassis, FranceReported employees: Not recorded | Cassis, France | Not recorded | Exact match | 230 contacts → |
“GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Insersainsersa.esHQ: Seville, SpainReported employees: 501-1,000 | Seville, Spain | 501-1,000 | Exact match | 228 contacts → |
“INSERSA (Ingeniería de Suelos y Explotación de Recursos, S.A.) se constituyó en 1988 con una actividad inicial en sondeos y perforaciones mineras, en la que actualmente es líder…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 5,265 company matches
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Subsurface investigation firms: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
5,199 records in the displayed employee bands.
66 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 5,265 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Subsurface investigation firms by location
24 lists · largest firstEvery Subsurface investigation firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsurface investigation firms based in the United States1,077
- Subsurface investigation firms based in the United Kingdom314
- Subsurface investigation firms based in Brazil281
- Subsurface investigation firms based in France266
- Subsurface investigation firms based in Canada237
- Subsurface investigation firms based in Italy214
- Subsurface investigation firms based in Germany207
- Subsurface investigation firms based in Australia205
- Subsurface investigation firms based in India152
- Subsurface investigation firms based in Türkiye137
- Subsurface investigation firms based in Spain91
- Subsurface investigation firms based in Chile83
- Subsurface investigation firms based in the Netherlands76
- Subsurface investigation firms based in South Africa71
- Subsurface investigation firms based in Poland59
- Subsurface investigation firms based in Switzerland45
- Subsurface investigation firms based in New Zealand42
- Subsurface investigation firms based in Belgium40
- Subsurface investigation firms based in Saudi Arabia39
- Subsurface investigation firms based in the United Arab Emirates35
- Subsurface investigation firms based in Sweden26
Cities
Questions about this company list
What does Exact match mean for subsurface investigation firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many subsurface investigation firms did RevenueBase find worldwide?
The saved snapshot records 5,265 matching company records, 65,708 tracked contacts and 20,103 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 subsurface investigation firms worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/subsurface-investigation-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 subsurface investigation firms worldwide
RevenueBase records 5,265 matching company records for subsurface investigation firms worldwide, with 65,708 tracked contacts and 20,103 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 subsurface investigation firms worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | ECS Group Of Companiesecslimited.com HQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 2,363 contacts → |
“ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Saexplorationsaexploration.com HQ: Houston, AB, United StatesReported employees: 201-500 | Houston, AB, United States | 201-500 | Exact match | 671 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | ARGASargas.com HQ: 4204 King Fahd Road, Saudi ArabiaReported employees: 1,001-5,000 | 4204 King Fahd Road, Saudi Arabia | 1,001-5,000 | Exact match | 594 contacts → |
“ARGAS, since its inception in 1966, was focused on developing Geological and Geophysical field solutions to further explore the earth’s Natural Resources.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Geo-Technology Associates, Inc. GTAgtaeng.com HQ: Abingdon, OH, United KingdomReported employees: 501-1,000 | Abingdon, OH, United Kingdom | 501-1,000 | Exact match | 503 contacts → |
“Geo-Technology Associates, Inc.(GTA) proudly celebrates more than 40 years of service, backed by a team of 600+ professionals-including geotechnical engineers, environmental…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Groupe ABSgroupeabs.com HQ: Montréal, QC, CanadaReported employees: 501-1,000 | Montréal, QC, Canada | 501-1,000 | Exact match | 474 contacts → |
“Fondé en 1993 et établi dans onze régions du Québec et en Ontario.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Construction Sciencesconstructionsciences.net HQ: Albion, AustraliaReported employees: 1,001-5,000 | Albion, Australia | 1,001-5,000 | Exact match | 465 contacts → |
“Construction Sciences is a construction materials testing, geotechnical engineering, environmental consulting and specialised testing firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Progeo Engenharia Ltdaprogeo.com.br HQ: Belo Horizonte, BrazilReported employees: 501-1,000 | Belo Horizonte, Brazil | 501-1,000 | Exact match | 408 contacts → |
“Fundada em 1981, a empresa é focada na execução de serviços especiais de geologia, engenharia geotécnica e recuperação de estruturas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Fugro Suhaimi Company LTDfugro-suhaimi.com HQ: Dammam, Saudi ArabiaReported employees: 501-1,000 | Dammam, Saudi Arabia | 501-1,000 | Exact match | 376 contacts → |
“We are the world’s leading Geo-data specialist, collecting and analysing comprehensive information about the Earth and the structures built upon it.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Geocontrolegeocontrole.com HQ: Lisbon, PortugalReported employees: 501-1,000 | Lisbon, Portugal | 501-1,000 | Exact match | 348 contacts → |
“With a marketplace presence of more than three decades, GEOCONTROLE - Geotecnia e Estruturas de Fundação, S.A.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Conetecconetec.com HQ: Burnaby, NJ, CanadaReported employees: 501-1,000 | Burnaby, NJ, Canada | 501-1,000 | Exact match | 347 contacts → |
“ConeTec is a full-service geotechnical, geoenvironmental, and mining site investigation contractor.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Geofizyka Torun S.Agtservices.pl HQ: Toruń, PolandReported employees: 1,001-5,000 | Toruń, Poland | 1,001-5,000 | Exact match | 347 contacts → |
“We deliver innovative geophysical, geological and geotechnical solutions for energy sector as well as renewable energy in Poland and worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Ninyo & Moore, A Socotec Companysocotec.us HQ: San Diego, CA, United StatesReported employees: 501-1,000 | San Diego, CA, United States | 501-1,000 | Exact match | 338 contacts → |
“Ninyo & Moore was acquired by SOCOTEC US.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Froehling & Robertson, INCfandr.com HQ: Richmond, VA, United StatesReported employees: 201-500 | Richmond, VA, United States | 201-500 | Exact match | 333 contacts → |
“Established in 1881, Froehling & Robertson, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | CMW Geosciencescmwgeosciences.com HQ: Perth, United StatesReported employees: 201-500 | Perth, United States | 201-500 | Exact match | 332 contacts → |
“CMW Geosciences is a specialist geotechnical consultancy delivering first-class geotech engineering services throughout Australia and New Zealand.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | BVP Geotecnia E Hidrotecniabvp.eng.br HQ: Belo Horizonte, BrazilReported employees: 201-500 | Belo Horizonte, Brazil | 201-500 | Exact match | 328 contacts → |
“Somos a BVP Geotecnia e Hidrotecnia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Annapolis Junction, PA, United StatesReported employees: 201-500 | Annapolis Junction, PA, United States | 201-500 | Exact match | 315 contacts → |
“Hillis-Carnes Engineering Associates, Inc.(HCEA) is a Mid-Atlantic based, multi-disciplined consulting engineering firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | ENGEOengeo.com HQ: San Ramon, CA, United StatesReported employees: 201-500 | San Ramon, CA, United States | 201-500 | Exact match | 294 contacts → |
“ENGEO Incorporated is an award-winning, employee-owned comprehensive provider of more than 400 geotechnical and civil engineers, geologists, GIS experts, environmental scientists…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Capital Surveyscapital-surveys.com HQ: Mohamed Bin Zayed City, United Arab EmiratesReported employees: 501-1,000 | Mohamed Bin Zayed City, United Arab Emirates | 501-1,000 | Exact match | 289 contacts → |
“Capital Surveys was founded in 1996 by Eng.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Prospectiuni S.Aprospectiuni.com HQ: Bucharest, RomaniaReported employees: 1,001-5,000 | Bucharest, Romania | 1,001-5,000 | Exact match | 272 contacts → |
“Prospectiuni SA is a major provider of geophysical expertise, with over 60 years of experience in the Romanian Oil and Gas industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cascade Environmental, LLCcascade-env.com HQ: Bothell, WA, United StatesReported employees: 1,001-5,000 | Bothell, WA, United States | 1,001-5,000 | Exact match | 262 contacts → |
“CASCADE is the leading provider of environmental and geotechnical drilling, site investigation and environmental remediation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Paterson & Cookepatersoncooke.com HQ: Cape Town, South AfricaReported employees: 201-500 | Cape Town, South Africa | 201-500 | Exact match | 259 contacts → |
“Paterson & Cooke is a global mining consulting firm renowned and trusted for its expertise in a wide range of areas that include tailings and mine waste handling, long distance…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | DF Engineeringdfmais.eng.br HQ: Belo Horizonte, BrazilReported employees: 201-500 | Belo Horizonte, Brazil | 201-500 | Exact match | 250 contacts → |
“Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Solmatech INCsolmatech.ca HQ: Repentigny, QC, CanadaReported employees: 201-500 | Repentigny, QC, Canada | 201-500 | Exact match | 241 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | Geoceangeocean.com HQ: Cassis, FranceReported employees: Not recorded | Cassis, France | Not recorded | Exact match | 230 contacts → |
“GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Insersainsersa.es HQ: Seville, SpainReported employees: 501-1,000 | Seville, Spain | 501-1,000 | Exact match | 228 contacts → |
“INSERSA (Ingeniería de Suelos y Explotación de Recursos, S.A.) se constituyó en 1988 con una actividad inicial en sondeos y perforaciones mineras, en la que actualmente es líder…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Subsurface investigation firms: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
5,199 records in the displayed employee bands.
66 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 5,265 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Subsurface investigation firms by location
24 lists · largest firstEvery Subsurface investigation firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsurface investigation firms based in the United States1,077
- Subsurface investigation firms based in the United Kingdom314
- Subsurface investigation firms based in Brazil281
- Subsurface investigation firms based in France266
- Subsurface investigation firms based in Canada237
- Subsurface investigation firms based in Italy214
- Subsurface investigation firms based in Germany207
- Subsurface investigation firms based in Australia205
- Subsurface investigation firms based in India152
- Subsurface investigation firms based in Türkiye137
- Subsurface investigation firms based in Spain91
- Subsurface investigation firms based in Chile83
- Subsurface investigation firms based in the Netherlands76
- Subsurface investigation firms based in South Africa71
- Subsurface investigation firms based in Poland59
- Subsurface investigation firms based in Switzerland45
- Subsurface investigation firms based in New Zealand42
- Subsurface investigation firms based in Belgium40
- Subsurface investigation firms based in Saudi Arabia39
- Subsurface investigation firms based in the United Arab Emirates35
- Subsurface investigation firms based in Sweden26
Cities
Questions about this company list
What does Exact match mean for subsurface investigation firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many subsurface investigation firms did RevenueBase find worldwide?
The saved snapshot records 5,265 matching company records, 65,708 tracked contacts and 20,103 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
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Cite this list
RevenueBase Data Team. Top 25 subsurface investigation firms worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/subsurface-investigation-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗