Company lists · Data refreshed November 2026
Top 25 Subsurface investigation services worldwide
RevenueBase identified 5,945 company matches for subsurface investigation services worldwide as of November 2026 and tracks 98,138 professional contacts across them, including 32,458 with verified work emails. The United States is the largest market and Belo Horizonte the largest hub.
This list covers company matches for subsurface investigation services 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 services 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 services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,576 contacts → | ||||
Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 4,408 contacts → | ||||
Exact match “Every day, people around the world live, work and play on ground prepared by Keller, the world's largest geotechnical specialist contractor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 922 contacts → | ||||
Exact match “Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc.(GZA) has grown into a full-service company providing its clients with highly…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 795 contacts → | ||||
Exact match “Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 612 contacts → | ||||
Exact match “Founded in 1968, Raba Kistner Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 541 contacts → | ||||
Exact match “Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 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 | |||||
| 9 | 499 contacts → | ||||
Exact match “Groupe Géotec, bureau d’études en ingénierie géotechnique et environnementale, créé en 1973, conseille l’ensemble des interlocuteurs de l’acte de construire : maîtres d’ouvrage…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 497 contacts → | ||||
Exact match “Founded in 1943, Geo is a market leading engineering consultancy company and contractor, specialised within the fields of geotechnical and environmental engineering (geoteknik og…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 495 contacts → | ||||
Exact match “ENTACT is the partner of choice in solving our customer's most complex environmental remediation and geotechnical infrastructure challenges.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 491 contacts → | ||||
Exact match “Welcome to Douglas Partners Pty Ltd, a leading engineering consultancy specialising in geotechnics, rock mechanics, environment, groundwater, earthworks and geophysics.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 489 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 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 | |||||
| 15 | 466 contacts → | ||||
Exact match “Overview In 2012, L&T acquired a huge fleet of sophisticated foundation equipment and L&T GeoStructure - a unique legal business entity, was formed to focus, capture and build…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 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 | |||||
| 17 | 450 contacts → | ||||
Exact match “Geoquip Marine is a geotechnical data acquisition company safely delivering offshore geotechnical site investigations and engineering services to clients worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 443 contacts → | ||||
Exact match “A Chammas acredita que a engenharia aplicada com rigor e seriedade contribui para um mundo mais seguro e sustentável; Desenvolvemos soluções eficazes, combinando expertise humana…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 440 contacts → | ||||
Exact match “NGI – The Norwegian Geotechnical Institute – is an independent research centre in the field of geotechnical engineering and the engineering geosciences.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 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 | |||||
| 21 | 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 | |||||
| 22 | 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 | |||||
| 23 | 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 | |||||
| 24 | 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 | |||||
| 25 | 336 contacts → | ||||
Exact match “Más de 25 años de experiencia, en Rock Drill brindamos seguridad e innovación en nuestros servicios de perforación de exploración diamantina, geotécnica, producción y servicios…” 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 services”. 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 5,945 subsurface investigation services worldwide
See the full list, filter by size, metro and specialty, and access 32,458 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Subsurface investigation services 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 services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “subsurface investigation services” 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 32,458 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 services by location
27 lists · largest firstEvery Subsurface investigation services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsurface investigation services based in the United States1,107
- Subsurface investigation services based in Brazil409
- Subsurface investigation services based in the United Kingdom306
- Subsurface investigation services based in France262
- Subsurface investigation services based in Canada254
- Subsurface investigation services based in Italy252
- Subsurface investigation services based in Germany242
- Subsurface investigation services based in Australia227
- Subsurface investigation services based in India171
- Subsurface investigation services based in Türkiye151
- Subsurface investigation services based in Spain132
- Subsurface investigation services based in Chile111
- Subsurface investigation services based in South Africa95
- Subsurface investigation services based in Colombia94
- Subsurface investigation services based in the Netherlands93
- Subsurface investigation services based in Mexico84
- Subsurface investigation services based in Poland68
- Subsurface investigation services based in Switzerland60
- Subsurface investigation services based in New Zealand56
- Subsurface investigation services based in Saudi Arabia46
- Subsurface investigation services based in Argentina40
- Subsurface investigation services based in Belgium37
- Subsurface investigation services based in Sweden36
- Subsurface investigation services based in Portugal29
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 services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many subsurface investigation services are there worldwide?
RevenueBase identified 5,945 company matches for subsurface investigation services 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?
Terracon tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most subsurface investigation services?
The United States leads with 1,107 companies, followed by Brazil (409) and the United Kingdom (306). Every subsurface investigation services list by country and city is linked on this page.
Which city has the most subsurface investigation services?
Belo Horizonte leads with 64 company records, followed by Sao Paulo (55) and Lima (34).
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 32,458 professional contacts with verified work emails tracked across these 5,945 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.
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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 services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 5,945 matching company records for subsurface investigation services worldwide, with 98,138 tracked contacts and 32,458 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 services 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 |  Terraconterracon.comHQ: Olathe, NE, United StatesReported employees: 5,001-10,000 | Olathe, NE, United States | 5,001-10,000 | Exact match | 6,576 contacts → |
“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Kellerkeller.comHQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 4,408 contacts → |
“Every day, people around the world live, work and play on ground prepared by Keller, the world's largest geotechnical specialist contractor.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  GZA Geoenvironmental, INCgza.comHQ: Norwood, MA, United StatesReported employees: 501-1,000 | Norwood, MA, United States | 501-1,000 | Exact match | 922 contacts → |
“Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc.(GZA) has grown into a full-service company providing its clients with highly…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Professional Service Industries, Inc. PSIintertek.comHQ: Arlington Heights, NY, United StatesReported employees: 1,001-5,000 | Arlington Heights, NY, United States | 1,001-5,000 | Exact match | 795 contacts → |
“Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Raba Kistner, INCrkci.comHQ: San Antonio, UT, United StatesReported employees: 501-1,000 | San Antonio, UT, United States | 501-1,000 | Exact match | 612 contacts → |
“Founded in 1968, Raba Kistner Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Nova Engineering And Environmental, LLCusanova.comHQ: Kennesaw, FL, United StatesReported employees: 501-1,000 | Kennesaw, FL, United States | 501-1,000 | Exact match | 541 contacts → |
“Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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. | |||||
| 9 |  Groupe Géotecgeotec.frHQ: Quetigny, FranceReported employees: 501-1,000 | Quetigny, France | 501-1,000 | Exact match | 499 contacts → |
“Groupe Géotec, bureau d’études en ingénierie géotechnique et environnementale, créé en 1973, conseille l’ensemble des interlocuteurs de l’acte de construire : maîtres d’ouvrage…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  GEOgeo.dkHQ: Kgs. Lyngby (copenhagen), DenmarkReported employees: 201-500 | Kgs. Lyngby (copenhagen), Denmark | 201-500 | Exact match | 497 contacts → |
“Founded in 1943, Geo is a market leading engineering consultancy company and contractor, specialised within the fields of geotechnical and environmental engineering (geoteknik og…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Entact, LLCentact.comHQ: Westmont, IL, United StatesReported employees: 501-1,000 | Westmont, IL, United States | 501-1,000 | Exact match | 495 contacts → |
“ENTACT is the partner of choice in solving our customer's most complex environmental remediation and geotechnical infrastructure challenges.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Douglas Partnersdouglaspartners.com.auHQ: West Ryde, AustraliaReported employees: 501-1,000 | West Ryde, Australia | 501-1,000 | Exact match | 491 contacts → |
“Welcome to Douglas Partners Pty Ltd, a leading engineering consultancy specialising in geotechnics, rock mechanics, environment, groundwater, earthworks and geophysics.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Thurber Engineering LTDthurber.caHQ: Edmonton, ON, CanadaReported employees: 501-1,000 | Edmonton, ON, Canada | 501-1,000 | Exact match | 489 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  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. | |||||
| 15 |  L&t Geostructurelntecc.comHQ: Chennai, IndiaReported employees: 501-1,000 | Chennai, India | 501-1,000 | Exact match | 466 contacts → |
“Overview In 2012, L&T acquired a huge fleet of sophisticated foundation equipment and L&T GeoStructure - a unique legal business entity, was formed to focus, capture and build…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  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. | |||||
| 17 |  Geoquip Marinegeoquip-marine.comHQ: 9001 St. Gallen, SwitzerlandReported employees: 201-500 | 9001 St. Gallen, Switzerland | 201-500 | Exact match | 450 contacts → |
“Geoquip Marine is a geotechnical data acquisition company safely delivering offshore geotechnical site investigations and engineering services to clients worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Chammas Engenhariachammasengenharia.com.brHQ: Belo Horizonte, BrazilReported employees: 201-500 | Belo Horizonte, Brazil | 201-500 | Exact match | 443 contacts → |
“A Chammas acredita que a engenharia aplicada com rigor e seriedade contribui para um mundo mais seguro e sustentável; Desenvolvemos soluções eficazes, combinando expertise humana…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  NGIngi.noHQ: Oslo, NorwayReported employees: 201-500 | Oslo, Norway | 201-500 | Exact match | 440 contacts → |
“NGI – The Norwegian Geotechnical Institute – is an independent research centre in the field of geotechnical engineering and the engineering geosciences.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  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. | |||||
| 21 |  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. | |||||
| 22 |  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. | |||||
| 23 |  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. | |||||
| 24 |  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. | |||||
| 25 |  Rock Drillrockdrillgroup.comHQ: Lima, PeruReported employees: 1,001-5,000 | Lima, Peru | 1,001-5,000 | Exact match | 336 contacts → |
“Más de 25 años de experiencia, en Rock Drill brindamos seguridad e innovación en nuestros servicios de perforación de exploración diamantina, geotécnica, producción y servicios…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 5,945 company matches
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Subsurface investigation services: 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
5,878 records in the displayed employee bands.
67 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 5,945 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 services by location
27 lists · largest firstEvery Subsurface investigation services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsurface investigation services based in the United States1,107
- Subsurface investigation services based in Brazil409
- Subsurface investigation services based in the United Kingdom306
- Subsurface investigation services based in France262
- Subsurface investigation services based in Canada254
- Subsurface investigation services based in Italy252
- Subsurface investigation services based in Germany242
- Subsurface investigation services based in Australia227
- Subsurface investigation services based in India171
- Subsurface investigation services based in Türkiye151
- Subsurface investigation services based in Spain132
- Subsurface investigation services based in Chile111
- Subsurface investigation services based in South Africa95
- Subsurface investigation services based in Colombia94
- Subsurface investigation services based in the Netherlands93
- Subsurface investigation services based in Mexico84
- Subsurface investigation services based in Poland68
- Subsurface investigation services based in Switzerland60
- Subsurface investigation services based in New Zealand56
- Subsurface investigation services based in Saudi Arabia46
- Subsurface investigation services based in Argentina40
- Subsurface investigation services based in Belgium37
- Subsurface investigation services based in Sweden36
- Subsurface investigation services based in Portugal29
Cities
Questions about this company list
What does Exact match mean for subsurface investigation services?
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 services did RevenueBase find worldwide?
The saved snapshot records 5,945 matching company records, 98,138 tracked contacts and 32,458 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.
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Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 subsurface investigation services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/subsurface-investigation-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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Company intelligence · public preview
Top 25 subsurface investigation services worldwide
RevenueBase records 5,945 matching company records for subsurface investigation services worldwide, with 98,138 tracked contacts and 32,458 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 services 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 | Terraconterracon.com HQ: Olathe, NE, United StatesReported employees: 5,001-10,000 | Olathe, NE, United States | 5,001-10,000 | Exact match | 6,576 contacts → |
“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Kellerkeller.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 4,408 contacts → |
“Every day, people around the world live, work and play on ground prepared by Keller, the world's largest geotechnical specialist contractor.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | GZA Geoenvironmental, INCgza.com HQ: Norwood, MA, United StatesReported employees: 501-1,000 | Norwood, MA, United States | 501-1,000 | Exact match | 922 contacts → |
“Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc.(GZA) has grown into a full-service company providing its clients with highly…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Professional Service Industries, Inc. PSIintertek.com HQ: Arlington Heights, NY, United StatesReported employees: 1,001-5,000 | Arlington Heights, NY, United States | 1,001-5,000 | Exact match | 795 contacts → |
“Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Raba Kistner, INCrkci.com HQ: San Antonio, UT, United StatesReported employees: 501-1,000 | San Antonio, UT, United States | 501-1,000 | Exact match | 612 contacts → |
“Founded in 1968, Raba Kistner Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Nova Engineering And Environmental, LLCusanova.com HQ: Kennesaw, FL, United StatesReported employees: 501-1,000 | Kennesaw, FL, United States | 501-1,000 | Exact match | 541 contacts → |
“Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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. | |||||
| 9 | Groupe Géotecgeotec.fr HQ: Quetigny, FranceReported employees: 501-1,000 | Quetigny, France | 501-1,000 | Exact match | 499 contacts → |
“Groupe Géotec, bureau d’études en ingénierie géotechnique et environnementale, créé en 1973, conseille l’ensemble des interlocuteurs de l’acte de construire : maîtres d’ouvrage…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | GEOgeo.dk HQ: Kgs. Lyngby (copenhagen), DenmarkReported employees: 201-500 | Kgs. Lyngby (copenhagen), Denmark | 201-500 | Exact match | 497 contacts → |
“Founded in 1943, Geo is a market leading engineering consultancy company and contractor, specialised within the fields of geotechnical and environmental engineering (geoteknik og…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Entact, LLCentact.com HQ: Westmont, IL, United StatesReported employees: 501-1,000 | Westmont, IL, United States | 501-1,000 | Exact match | 495 contacts → |
“ENTACT is the partner of choice in solving our customer's most complex environmental remediation and geotechnical infrastructure challenges.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Douglas Partnersdouglaspartners.com.au HQ: West Ryde, AustraliaReported employees: 501-1,000 | West Ryde, Australia | 501-1,000 | Exact match | 491 contacts → |
“Welcome to Douglas Partners Pty Ltd, a leading engineering consultancy specialising in geotechnics, rock mechanics, environment, groundwater, earthworks and geophysics.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Thurber Engineering LTDthurber.ca HQ: Edmonton, ON, CanadaReported employees: 501-1,000 | Edmonton, ON, Canada | 501-1,000 | Exact match | 489 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | 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. | |||||
| 15 | L&t Geostructurelntecc.com HQ: Chennai, IndiaReported employees: 501-1,000 | Chennai, India | 501-1,000 | Exact match | 466 contacts → |
“Overview In 2012, L&T acquired a huge fleet of sophisticated foundation equipment and L&T GeoStructure - a unique legal business entity, was formed to focus, capture and build…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | 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. | |||||
| 17 | Geoquip Marinegeoquip-marine.com HQ: 9001 St. Gallen, SwitzerlandReported employees: 201-500 | 9001 St. Gallen, Switzerland | 201-500 | Exact match | 450 contacts → |
“Geoquip Marine is a geotechnical data acquisition company safely delivering offshore geotechnical site investigations and engineering services to clients worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Chammas Engenhariachammasengenharia.com.br HQ: Belo Horizonte, BrazilReported employees: 201-500 | Belo Horizonte, Brazil | 201-500 | Exact match | 443 contacts → |
“A Chammas acredita que a engenharia aplicada com rigor e seriedade contribui para um mundo mais seguro e sustentável; Desenvolvemos soluções eficazes, combinando expertise humana…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | NGIngi.no HQ: Oslo, NorwayReported employees: 201-500 | Oslo, Norway | 201-500 | Exact match | 440 contacts → |
“NGI – The Norwegian Geotechnical Institute – is an independent research centre in the field of geotechnical engineering and the engineering geosciences.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | 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. | |||||
| 21 | 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. | |||||
| 22 | 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. | |||||
| 23 | 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. | |||||
| 24 | 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. | |||||
| 25 | Rock Drillrockdrillgroup.com HQ: Lima, PeruReported employees: 1,001-5,000 | Lima, Peru | 1,001-5,000 | Exact match | 336 contacts → |
“Más de 25 años de experiencia, en Rock Drill brindamos seguridad e innovación en nuestros servicios de perforación de exploración diamantina, geotécnica, producción y servicios…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 5,945 company matches
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Subsurface investigation services: 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
5,878 records in the displayed employee bands.
67 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 5,945 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 services by location
27 lists · largest firstEvery Subsurface investigation services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Subsurface investigation services based in the United States1,107
- Subsurface investigation services based in Brazil409
- Subsurface investigation services based in the United Kingdom306
- Subsurface investigation services based in France262
- Subsurface investigation services based in Canada254
- Subsurface investigation services based in Italy252
- Subsurface investigation services based in Germany242
- Subsurface investigation services based in Australia227
- Subsurface investigation services based in India171
- Subsurface investigation services based in Türkiye151
- Subsurface investigation services based in Spain132
- Subsurface investigation services based in Chile111
- Subsurface investigation services based in South Africa95
- Subsurface investigation services based in Colombia94
- Subsurface investigation services based in the Netherlands93
- Subsurface investigation services based in Mexico84
- Subsurface investigation services based in Poland68
- Subsurface investigation services based in Switzerland60
- Subsurface investigation services based in New Zealand56
- Subsurface investigation services based in Saudi Arabia46
- Subsurface investigation services based in Argentina40
- Subsurface investigation services based in Belgium37
- Subsurface investigation services based in Sweden36
- Subsurface investigation services based in Portugal29
Cities
Questions about this company list
What does Exact match mean for subsurface investigation services?
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 services did RevenueBase find worldwide?
The saved snapshot records 5,945 matching company records, 98,138 tracked contacts and 32,458 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 services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/subsurface-investigation-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗