Company lists · Data refreshed September 2026
Top 25 Hydrogeology companies based in Brazil
RevenueBase identified 1,072 hydrogeology companies headquartered in Brazil as of September 2026 and tracks 14,299 professional contacts across them, including 2,406 with verified work emails. Belo Horizonte is the largest hub.
This list covers hydrogeology companies headquartered in Brazil, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest hydrogeology companies based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,317 contacts → | ||||
Indirect evidence “One of the leading geology companies in the world, GEOSOL excels in the undertaking of geological drilling and mineral engineering programs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 588 contacts → | ||||
Indirect evidence “Sondotécnica was founded in 1954.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 477 contacts → | ||||
Indirect evidence “Empresa mineira, fundada em 1988, a ERG Engenharia mantém vivo o seu ideal de participar da construção de um mundo melhor e sustentável.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 400 contacts → | ||||
Indirect evidence “Fundada em 1981, a empresa é focada na execução de serviços especiais de geologia, engenharia geotécnica e recuperação de estruturas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 355 contacts → | ||||
Indirect evidence “A Tecnogeo Ground é uma empresa brasileira, líder de mercado em serviços de Geotecnia, Fundações Pesadas e Melhoramento de Solos.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 286 contacts → | ||||
Indirect evidence “Somos a BVP Geotecnia e Hidrotecnia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 268 contacts → | ||||
Indirect evidence “Somos a Global Ship, uma empresa líder em operações marítimas e portuárias.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 252 contacts → | ||||
Strong evidence “Walm BH Engenharia is a company that operates in the areas of Geotechnical Engineering, Hydrology, Hydraulics, Hydrogeology, Engineering Geology, Rock Mechanics, and Environment &…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 245 contacts → | ||||
Indirect evidence “Há mais de duas décadas, o Grupo Geominas desenvolve soluções técnicas especializadas para engenharia, mineração, infraestrutura e meio ambiente.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 244 contacts → | ||||
Indirect evidence “Since 1989, the company develops waste disposal studies to a wide range of clients embodying different kind of benefited ore, developing specific work methods according to new…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 234 contacts → | ||||
Indirect evidence “A WALM Engenharia e Tecnologia Ambiental Ltda.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 232 contacts → | ||||
Indirect evidence “Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 203 contacts → | ||||
Indirect evidence “Na sua fundação em 1985, o objetivo imediato da empresa era a execução de sondagens a percussão para subsidiar estudos e projetos de fundações, escavações, terraplenos e outras…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 201 contacts → | ||||
Indirect evidence “A GEOAMBIENTE Geologia e Engenharia Ambiental atua no Gerenciamento de Áreas Contaminadas provendo soluções em Diagnóstico de Passivos Ambientais e Remediação de Solo e Água…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 179 contacts → | ||||
Indirect evidence “A DrillGeo, nos seus mais de 25 anos de experiência no mercado de sondagem, sempre buscou a máxima qualidade e eficiência, trabalhando de forma sustentável e respeito ao meio…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 147 contacts → | ||||
Indirect evidence “Ster Engenharia” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 147 contacts → | ||||
Indirect evidence “São mais de 1,2 mil projetos desenvolvidos nos setores industriais, de mineração, construção civil, abastecimento e agronegócio.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 120 contacts → | ||||
Indirect evidence “3Geo Consulting is a geotechnical and environmental consulting company.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 102 contacts → | ||||
Indirect evidence “Desafios ambientais complexos exigem conhecimento embasado, ciência aplicada e execução precisa.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 97 contacts → | ||||
Indirect evidence “A GEOSONDA é uma das mais completas empresas do setor de prestação de serviços especiais de engenharia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 93 contacts → | ||||
Indirect evidence “GEOESTÁVEL CONSULTORIA E PROJETOS Com sede própria na cidade mineira de Belo Horizonte, a empresa atua em todo território nacional e internacional.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 89 contacts → | ||||
Indirect evidence “A Servdrill é uma prestadora de serviços de perfuração e sondagem geológica especializada em prospecção mineral.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 86 contacts → | ||||
Indirect evidence “For over 20 years, we have developed engineering solutions for the most complex environmental challenges in Brazil and around the world.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 84 contacts → | ||||
Strong evidence “Water Services and Technologies is a company specialized in hydrogeology and environmental services, which values technical quality, safety and excellence, always seeking to…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 80 contacts → | ||||
Indirect evidence “Clean Environment Brasil is the leading supplier of environmental products and technologies in Brasil since 1995.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: hydrogeology companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names hydrogeology companies.
- Partial evidence
- Its own public description names part of hydrogeology companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name hydrogeology companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,072 hydrogeology companies based in Brazil
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Hydrogeology companies based in Brazil at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 1,072 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among hydrogeology companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Brazil whose own description of what they do matches “hydrogeology companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names hydrogeology companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among hydrogeology companies, and records with no verified work email. Companies headquartered outside Brazil are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 2,406 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Hydrogeology companies by metro
- Hydrogeology companies in Belo Horizonte139
- Hydrogeology companies in Sao Paulo108
- Hydrogeology companies in Rio De Janeiro63
- Hydrogeology companies in Curitiba32
- Hydrogeology companies in Porto Alegre27
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names hydrogeology companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many hydrogeology companies are there based in Brazil?
RevenueBase identified 1,072 hydrogeology companies headquartered in Brazil as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Geosol Geologia E Sondagens S.A, headquartered in Belo Horizonte, tops this list with the largest team on record.
Which city has the most hydrogeology companies?
Belo Horizonte leads with 139 headquartered companies, followed by Sao Paulo (108) and Rio De Janeiro (63).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,406 verified decision-maker contacts tracked across these 1,072 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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