Company lists · Data refreshed September 2026

Top 25 Hydrological survey companies based in Brazil

Name: Hydrological survey companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 180 companies tracked

RevenueBase identified 180 hydrological survey companies headquartered in Brazil as of September 2026 and tracks 2,320 professional contacts across them, including 589 with verified work emails. Belo Horizonte is the largest hub.

This list covers hydrological survey 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 20, 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 20, 2026 86% judged on-target in blind review

180Companies

2,320Contacts tracked

589Verified emails

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The 25 largest hydrological survey companies based in Brazil

Ranked by team size

Top 25 of 180 hydrological survey companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to hydrological survey companies: 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 20, 2026	201-500	588 contacts →
	Indirect evidence “Sondotécnica was founded in 1954.” Source: RevenueBase Database · checked Sep 20, 2026
2	Mdgeo Hidrogeologia E Meio Ambiente	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 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 20, 2026
3	MPB Engenharia	Indirect evidence	Florianópolis, BrazilHQ checked Sep 20, 2026	51-200	93 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 20, 2026
4	Rhama Analysis	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 20, 2026	51-200	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 20, 2026
5	Water Services And Technologies	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	51-200	84 contacts →
	Indirect 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 20, 2026
6	Azurit	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	51-200	60 contacts →
	Indirect evidence “Realizamos estudos e elaboramos projetos nas áreas de Engenharia Hídrica; Gestão Estratégica e Institucional; Meio Ambiente e Socioeconomia.” Source: RevenueBase Database · checked Sep 20, 2026
7	Geasa Engenharia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 20, 2026	51-200	56 contacts →
	Indirect evidence “Criada em 2001, a Geasanevita atua em projetos que envolvem engenharia de infraestrutura de saneamento em geral, tais como água, esgotamento sanitário, drenagem, hidrologia…” Source: RevenueBase Database · checked Sep 20, 2026
8	Salt Engenharia E Meio Ambiente	Indirect evidence	São Paulo, BrazilHQ checked Sep 20, 2026	11-50	47 contacts →
	Indirect evidence “Brazilian company - Environmental Consultancy, Services and Projects:\| Inland fresh-waters \| Estuaries \| Coastal Waters \| Oceanic waters \| We act as a group, divided into three…” Source: RevenueBase Database · checked Sep 20, 2026
9	Ambsolution	Indirect evidence	Santo André, BrazilHQ checked Sep 20, 2026	11-50	40 contacts →
	Indirect evidence “A Ambsolution é uma empresa de engenharia ambiental, atuante nas áreas: • Avaliação ambiental • Gestão ambiental • Abastecimento e tratamento de água, drenagem e tratamento de…” Source: RevenueBase Database · checked Sep 20, 2026
10	Profill Engenharia E Ambiente	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 20, 2026	11-50	38 contacts →
	Indirect evidence “A Profill Engenharia e Ambiente, fundada em é uma empresa de engenharia consultiva que, desde a sua origem, trabalha com foco na identificação das demandas do cliente…” Source: RevenueBase Database · checked Sep 20, 2026
11	DBO Engenharia	Indirect evidence	Goiânia, BrazilHQ checked Sep 20, 2026	11-50	38 contacts →
	Indirect evidence “Fundada em 1º de setembro de 1983, a DBO ENGENHARIA desenvolve, desde então, projetos na área ambiental, prestando serviços de qualidade para indústrias, mineradoras, usinas de…” Source: RevenueBase Database · checked Sep 20, 2026
12	Progaia Engenharia E Meio Ambiente	Indirect evidence	Brasília, BrazilHQ checked Sep 20, 2026	51-200	38 contacts →
	Indirect evidence “A Progaia Engenharia e Meio Ambiente iniciou suas atividades em 2001, dedicando-se a trabalhos técnicos ligados à engenharia e meio ambiente, desenvolvendo estudos hidrológicos…” Source: RevenueBase Database · checked Sep 20, 2026
13	Potamos	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	11-50	35 contacts →
	Indirect evidence “A POTAMOS é uma empresa brasileira, criada em 1993, com atuação específica no mercado de Engenharia de Recursos Hídricos, sendo atualmente referência brasileira na área.” Source: RevenueBase Database · checked Sep 20, 2026
14	Engeper Ambiental E Perfurações	Indirect evidence	Garça, BrazilHQ checked Sep 20, 2026	11-50	33 contacts →
	Indirect evidence “A Engeper Ambiental e Perfurações é a empresa que detém a execução da perfuração mais profunda da América Latina para um Poço de Abastecimento com 1.650m de profundidade.” Source: RevenueBase Database · checked Sep 20, 2026
15	Sistemas Urbanos Engenharia	Indirect evidence	Indaiatuba, BrazilHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “Empresa voltada para consultoria e projetos na área saneamento, hidráulica, meio ambiente e recursos hídricos, atendendo também as áreas de urbanismo, transporte e edificações.” Source: RevenueBase Database · checked Sep 20, 2026
16	Tega Engenharia E Meio Ambiente	Indirect evidence	Cordeirópolis, BrazilHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “Nossa maior responsabilidade é contribuir com a conservação do meio ambiente e com um dos recursos naturais mais importantes, a Água.” Source: RevenueBase Database · checked Sep 20, 2026
17	Labmar Geociências Tecnologia Aplicada AOS Recursos Hídricos E Ambientais	Indirect evidence	Serra, BrazilHQ checked Sep 20, 2026	11-50	19 contacts →
	Indirect evidence “Labmar Geociências é uma empresa especializada em levantamentos e estudos hidrológicos, fluviométricos, hidrogeológicos e análises laboratoriais de solos, sedimentos, particulados…” Source: RevenueBase Database · checked Sep 20, 2026
18	Hydrodata Engenharia	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “Reconhecida por sua atuação no Rio Grande do Sul, a Hydrodata é uma consultoria de inteligência em segurança hidrológica que transforma dados em direção estratégica.” Source: RevenueBase Database · checked Sep 20, 2026
19	Hidrotop Construções, Importação E Comércio Ltda	Indirect evidence	Santos, BrazilHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “A HIDROTOP é uma empresa de engenharia marítima, fundada em 1987, sediada em Santos/SP, inscrita no Centro de Hidrografia da Marinha do Brasil (CHM), no Centro Almirante Moraes…” Source: RevenueBase Database · checked Sep 20, 2026
20	Minergeo	Indirect evidence	Indaiatuba, BrazilHQ checked Sep 20, 2026	51-200	12 contacts →
	Indirect evidence “We execute projects focused on the environment, geology, water resources and topography.” Source: RevenueBase Database · checked Sep 20, 2026
21	Hydroconsult Hidrometria Com. E Servicos	Indirect evidence	Cuiabá, BrazilHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Hydroconsult Hidrometria Com.” Source: RevenueBase Database · checked Sep 20, 2026
22	Inovvo	Indirect evidence	Florianópolis, BrazilHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Unimos rigor técnico, tecnologia e sustentabilidade para subsidiar o planejamento energético e a operação hidráulica de reservatórios.” Source: RevenueBase Database · checked Sep 20, 2026
23	Hidrodinamica	Indirect evidence	São Paulo, BrazilHQ checked Sep 20, 2026	1-10	9 contacts →
	Indirect evidence “A Hidrodinamica tem por objetivo auxiliar os clientes na resolução de problemas hidrogeológicos e ambientais, pela prestação de serviços altamente especializados.” Source: RevenueBase Database · checked Sep 20, 2026
24	Consultech Serviços Ambientais	Indirect evidence	Sorocaba, BrazilHQ checked Sep 20, 2026	201-500	9 contacts →
	Indirect evidence “Somos o resultado da contínua busca pela excelência na prestação de serviços no segmento de soluções alternativas para recursos hídricos, atuando com projeto, perfuração de poços…” Source: RevenueBase Database · checked Sep 20, 2026
25	Agsolve Monitoramento Ambiental	Indirect evidence	Indaiatuba, BrazilHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “A AgSolve Monitoramento Ambiental é especializada em soluções tecnológicas nas áreas de hidrologia, batimetria, medição de vazão, remediação e investigação, meteorologia, gases e…” Source: RevenueBase Database · checked Sep 20, 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: hydrological survey 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 hydrological survey companies.
Partial evidence: Its own public description names part of hydrological survey companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydrological survey 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 180 hydrological survey companies based in Brazil

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Hydrological survey companies based in Brazil at a glance

As of Sep 20, 2026

25.4%Verified-email coverage

12.9Average contacts per company

1-10Median size (employees)

12.8%Largest-city concentration · Belo Horizonte

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

107

11-50

51-200

201-500

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 180 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 hydrological survey 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 “hydrological survey 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 hydrological survey 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 hydrological survey 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, 589 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 20, 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.

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 hydrological survey 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 hydrological survey companies are there based in Brazil?

RevenueBase identified 180 hydrological survey 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?

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

Which city has the most hydrological survey companies?

Belo Horizonte leads with 23 headquartered companies, followed by Porto Alegre (13) and Sao Paulo (11).

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 589 verified decision-maker contacts tracked across these 180 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 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase 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.