Company lists · Data refreshed September 2026

Top 25 Hydrogeological consulting firms based in Brazil

Name: Hydrogeological consulting firms based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 1,144 companies tracked

RevenueBase identified 1,144 hydrogeological consulting firms headquartered in Brazil as of September 2026 and tracks 16,461 professional contacts across them, including 3,828 with verified work emails and 270 with mobile numbers. Belo Horizonte is the largest hub.

This list covers hydrogeological consulting firms 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 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

1,144Companies

16,461Contacts tracked

3,828Verified emails

270Mobile numbers

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The 25 largest hydrogeological consulting firms based in Brazil

Ranked by team size

Top 25 of 1,144 hydrogeological consulting firms based in Brazil, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to hydrogeological consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sondotécnica Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 3, 2026	201-500	585 contacts →
	Indirect evidence “Sondotécnica was founded in 1954.” Source: RevenueBase Database · checked Sep 3, 2026
2	ERG Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 3, 2026	201-500	476 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 3, 2026
3	Sete Soluções E Tecnologia Ambiental	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 3, 2026	501-1,000	444 contacts →
	Indirect evidence “Somos uma das maiores consultorias em meio ambiente do Brasil, fundada em 1997, contando, hoje, com uma equipe técnica multidisciplinar permanente, que congrega profissionais das…” Source: RevenueBase Database · checked Sep 3, 2026
4	NIP DO Brasil	Partial evidence	Vitória, BrazilHQ checked Sep 3, 2026	501-1,000	442 contacts →
	Partial evidence “Somos uma empresa de Engenharia Consultiva, oferecendo serviços para os mercados de energia, petróleo e gás, saneamento e recursos hídricos, transporte, telecomunicações e…” Source: RevenueBase Database · checked Sep 3, 2026
5	Grupo EP	Indirect evidence	Guarulhos, BrazilHQ checked Sep 3, 2026	501-1,000	436 contacts →
	Indirect evidence “Identificamos e solucionamos problemas relacionados ao tratamento de água e efluentes, reúso, dessalinização e análises ambientais para indústrias, consultorias ambientais e…” Source: RevenueBase Database · checked Sep 3, 2026
6	Progeo Engenharia Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 3, 2026	501-1,000	401 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 3, 2026
7	Engecorps	Indirect evidence	Barueri, BrazilHQ checked Sep 3, 2026	201-500	320 contacts →
	Indirect evidence “A ENGECORPS Engenharia S.A.” Source: RevenueBase Database · checked Sep 3, 2026
8	BVP Geotecnia E Hidrotecnia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 3, 2026	201-500	287 contacts →
	Indirect evidence “Somos a BVP Geotecnia e Hidrotecnia.” Source: RevenueBase Database · checked Sep 3, 2026
9	Walm BH Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 3, 2026	201-500	252 contacts →
	Indirect 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 3, 2026
10	Pimenta DE Ávila Consultoria	Indirect evidence	Nova Lima, BrazilHQ checked Sep 3, 2026	201-500	243 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 3, 2026
11	Grupo Geominas	Indirect evidence	Parauapebas, BrazilHQ checked Sep 3, 2026	201-500	243 contacts →
	Indirect evidence “O Grupo Geominas atua em todo o país, com estrutura robusta e equipe multidisciplinar altamente qualificada.” Source: RevenueBase Database · checked Sep 3, 2026
12	Walm Engenharia E Tecnologia Ambiental	Indirect evidence	São Paulo, BrazilHQ checked Sep 3, 2026	51-200	235 contacts →
	Indirect evidence “A WALM Engenharia e Tecnologia Ambiental Ltda.” Source: RevenueBase Database · checked Sep 3, 2026
13	GAP Ssma	Indirect evidence	Goiania, BrazilHQ checked Sep 3, 2026	201-500	234 contacts →
	Indirect evidence “A GAP Ambiental oferece serviços para pequenas, médias e grandes empresas em diversas áreas que vão desde o licenciamento ao acompanhamento da execução de projetos.” Source: RevenueBase Database · checked Sep 3, 2026
14	DF Engineering	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 3, 2026	201-500	233 contacts →
	Indirect evidence “Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.” Source: RevenueBase Database · checked Sep 3, 2026
15	MRS Ambiental	Indirect evidence	Brasilia, BrazilHQ checked Sep 3, 2026	51-200	192 contacts →
	Indirect evidence “MRS Estudos Ambientais Ltda began its activities on April 2, 1992.” Source: RevenueBase Database · checked Sep 3, 2026
16	Dossel Ambiental	Indirect evidence	Brasilia, BrazilHQ checked Sep 3, 2026	51-200	152 contacts →
	Indirect evidence “Somamos a experiência e a agilidade que você precisa para desenvolver os estudos necessários para o licenciamento ambiental e gestão do seu empreendimento.” Source: RevenueBase Database · checked Sep 3, 2026
17	Mdgeo Hidrogeologia E Meio Ambiente	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 3, 2026	51-200	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 3, 2026
18	EBP Brasil	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 3, 2026	51-200	137 contacts →
	Indirect evidence “EBP Brasil, um compromisso de mais de 40 anos com o meio ambiente.” Source: RevenueBase Database · checked Sep 3, 2026
19	CPEA	Indirect evidence	São Paulo, BrazilHQ checked Sep 3, 2026	51-200	136 contacts →
	Indirect evidence “CPEA - Consultoria Paulista de Estudos Ambientais is a limited liability company, founded on October 15th, with headquarter in the city of São Paulo.” Source: RevenueBase Database · checked Sep 3, 2026
20	Senha Engenharia & Urbanismo	Partial evidence	Goiania, BrazilHQ checked Sep 3, 2026	201-500	123 contacts →
	Partial evidence “A SENHA ENGENHARIA é uma empresa de engenharia consultiva com origem e foco na área de saneamento.” Source: RevenueBase Database · checked Sep 3, 2026
21	3geo Consultoria	Partial evidence	Niterói, BrazilHQ checked Sep 3, 2026	51-200	121 contacts →
	Partial evidence “3Geo Consulting is a geotechnical and environmental consulting company.” Source: RevenueBase Database · checked Sep 3, 2026
22	Geoestável Consultoria E Projetos Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 3, 2026	201-500	94 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 3, 2026
23	MPB Engenharia	Indirect evidence	Florianopolis, BrazilHQ checked Sep 3, 2026	51-200	94 contacts →
	Indirect evidence “A MPB Engenharia é uma empresa catarinense, sediada com matriz em Florianópolis e Filial com escritórios em Brasília.” Source: RevenueBase Database · checked Sep 3, 2026
24	Rhama Consultoria Ambiental	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 3, 2026	51-200	86 contacts →
	Indirect evidence “A Rhama atua em âmbito nacional e internacional, em diferentes aspectos relacionados ao meio ambiente.” Source: RevenueBase Database · checked Sep 3, 2026
25	Agroflor Engenharia E Meio Ambiente	Indirect evidence	Vicosa, BrazilHQ checked Sep 3, 2026	51-200	86 contacts →
	Indirect evidence “A Agroflor Engenharia e Meio Ambiente atua no mercado de consultoria e prestação de serviços ambientais nos segmentos: florestal, mineral e de construção civil, infraestrutura…” Source: RevenueBase Database · checked Sep 3, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: hydrogeological consulting firms. 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 hydrogeological consulting firms.
Partial evidence: Its own public description names part of hydrogeological consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydrogeological consulting firms. 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 1,144 hydrogeological consulting firms based in Brazil

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Hydrogeological consulting firms based in Brazil at a glance

As of Sep 3, 2026

23.3%Verified-email coverage

1.6%Mobile-number coverage

14.4Average contacts per company

1-10Median size (employees)

13.7%Largest-city concentration · Belo Horizonte

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

715

11-50

285

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

44731–60

2,20161–90

1,16490–180

16180+

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 hydrogeological consulting firms, 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 “hydrogeological consulting firms”. 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 hydrogeological consulting firms), 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 hydrogeological consulting firms, 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, 3,828 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 3, 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.

Hydrogeological consulting firms by metro

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 hydrogeological consulting firms, 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 hydrogeological consulting firms are there based in Brazil?

RevenueBase identified 1,144 hydrogeological consulting firms 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?

Sondotécnica Engenharia, headquartered in Rio De Janeiro, tops this list with the largest team on record.

Which city has the most hydrogeological consulting firms?

Belo Horizonte leads with 157 headquartered companies, followed by Sao Paulo (120) and Rio De Janeiro (54).

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 3,828 verified decision-maker contacts tracked across these 1,144 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 3, 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.