Company lists · Data refreshed September 2026

Top 25 Hydro engineering and consulting firms based in Rio De Janeiro, Brazil

Name: Hydro engineering and consulting firms based in Rio De Janeiro, Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 152 companies tracked

RevenueBase identified 152 hydro engineering and consulting firms headquartered in Rio De Janeiro, Brazil as of September 2026 and tracks 8,483 professional contacts across them, including 598 with verified work emails. Across Brazil, Sao Paulo is the largest hub for this category (341 companies); Rio De Janeiro has 152.

This list covers hydro engineering and consulting firms headquartered in Rio De Janeiro, 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 28, 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 28, 2026 86% judged on-target in blind review

152Companies

8,483Contacts tracked

598Verified emails

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The 25 largest hydro engineering and consulting firms based in Rio De Janeiro, Brazil

Ranked by team size

Top 25 of 152 hydro engineering and consulting firms based in Rio De Janeiro, Brazil, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to hydro engineering and 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 28, 2026	201-500	588 contacts →
	Indirect evidence “Sondotécnica was founded in 1954.” Source: RevenueBase Database · checked Sep 28, 2026
2	Planave S.A.	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	501-1,000	218 contacts →
	Partial evidence “Empresa atua em Engenharia Consultiva, na execução de estudos, projetos e acompanhamento de obras.” Source: RevenueBase Database · checked Sep 28, 2026
3	Rpeotta	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	51-200	169 contacts →
	Partial evidence “A RPEOTTA tem por objetivo a prestação de serviços pautados no compromisso com a excelência em engenharia consultiva em Projetos (Conceitual, Básica e Detalhada), estudo e…” Source: RevenueBase Database · checked Sep 28, 2026
4	Dratec Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	51-200	97 contacts →
	Indirect evidence “A Dratec Engenharia Ltda.” Source: RevenueBase Database · checked Sep 28, 2026
5	Prática Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	201-500	93 contacts →
	Indirect evidence “Fundada em a Prática Engenharia conquistou espaço e tornou-se uma empresa respeitada na solução e engenharia de obras civis, hidráulicas e elétricas, na consecução de projetos…” Source: RevenueBase Database · checked Sep 28, 2026
6	LMENG	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	51-200	92 contacts →
	Indirect evidence “Somos um escritório de consultoria técnica, constituído há mais de vinte anos, especializado na área de engenharia, com foco em energia elétrica, atuando nos segmentos de…” Source: RevenueBase Database · checked Sep 28, 2026
7	Proper Marine	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	51-200	90 contacts →
	Indirect evidence “Somos agora Longitude.” Source: RevenueBase Database · checked Sep 28, 2026
8	Geoprojetos Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	51-200	63 contacts →
	Indirect evidence “A Geoprojetos é uma empresa especializada em Geotecnia que tem sua história construída ao longo quase 40 anos de experiência onde tem acumulado um vasto acervo técnico com a…” Source: RevenueBase Database · checked Sep 28, 2026
9	Geomecânica S.A	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	51-200	61 contacts →
	Indirect evidence “Com mais de 50 anos de experiência no mercado, a Geomecânica consolidou-se como referência em engenharia civil e geotecnia, oferecendo soluções integradas para projetos de…” Source: RevenueBase Database · checked Sep 28, 2026
10	Casagrande Engenharia & Consultoria	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	51-200	54 contacts →
	Indirect evidence “Especializada em projetos de engenharia estrutural em concreto armado e protendido, estrutura metálica e madeira, a Casagrande Engenharia oferece soluções multidisciplinares e…” Source: RevenueBase Database · checked Sep 28, 2026
11	NSG Engineering	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect evidence “Big challenges.” Source: RevenueBase Database · checked Sep 28, 2026
12	Jacminas Empreendimentos	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect evidence “Jacminas Empreendimentos é uma empresa de engenharia civil baseada na Avenida das Américas, nº13651 - Cobertura, 301, Rio de Janeiro/RJ - Brasil.” Source: RevenueBase Database · checked Sep 28, 2026
13	Grupo Trial	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “Há mais de 10 anos no mercado e com profissionais com mais de 20 anos de experiência, o Grupo Trial desenvolve e executa projetos nas áreas de Engenharia Ambiental e Engenharia…” Source: RevenueBase Database · checked Sep 28, 2026
14	Monjardim Construções	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	36 contacts →
	Partial evidence “Monjardim Construcoes is a civil engineering company based out of R Virginia Vidal, 195, Parte, Rio De Janeiro, Rio De Janeiro, Brazil.” Source: RevenueBase Database · checked Sep 28, 2026
15	ECP Environmental Solutions	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Somos uma empresa de engenharia ambiental que presta serviços de consultoria para empreendimentos em geral, construção civil e indústrias.” Source: RevenueBase Database · checked Sep 28, 2026
16	Belov Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	1,001-5,000	32 contacts →
	Indirect evidence “Fundada em 1981 a Belov Engenharia oferece a seus parceiros experiência nos mais diversos campos na Engenharia Portuária e Subaquática.” Source: RevenueBase Database · checked Sep 28, 2026
17	Muniz & Spada Engenheiros Consultores Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “Empresa de Projeto em Geotecnia, Contenção e Estabilização de Taludes, Fundações e Obras de Terra, Geotecnologia Ferroviária, Terraplenagem e Pavimentos” Source: RevenueBase Database · checked Sep 28, 2026
18	Mlaydner Saneamento	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Especializados em engenharia, nossa missão é desenvolver trabalhos reconhecidamente diferenciados e inovadores através da estruturação de estudos e projetos de saneamento básico…” Source: RevenueBase Database · checked Sep 28, 2026
19	Enefer Consultoria, Projetos Ltda	Strong evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	51-200	13 contacts →
	Strong evidence “ENEFER is a Brazilian consulting engineering company, founded in 1977 by a group of engineers who dedicated themselves to consultative engineering activities in the transport area.” Source: RevenueBase Database · checked Sep 28, 2026
20	Orion Engenharia Ambiental	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “A Orion Engenharia Ambiental é uma empresa capaz de executar escopos de serviços nas áreas de Consultoria e Engenharia Ambiental, estruturada com base nos conceitos de…” Source: RevenueBase Database · checked Sep 28, 2026
21	Guterres Projetos	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “Criada em 1992, a Guterres Projetos oferece soluções completas e integradas em serviços de engenharia e consultoria nos setores de Óleo e Gás, Petroquímicos, Lubrificantes e…” Source: RevenueBase Database · checked Sep 28, 2026
22	Tecton Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “FUNDADA EM 1987, A TECTON É UMA EMPRESA DE PROJETOS E CONSULTORIA EM ENGENHARIA.” Source: RevenueBase Database · checked Sep 28, 2026
23	Proger Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Projetos e Consultoria em Engenharia Estrutural.” Source: RevenueBase Database · checked Sep 28, 2026
24	Pinheiro Almeida, Pericia E Assist. Técnica Judicial	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “A Pinheiro Almeida - Perícia e Assistência Técnica (PAPA) foi fundada em 2003 pelo engenheiro mecânico Mauricio Almeida, 48 anos de experiência profissional atuando nos setores da…” Source: RevenueBase Database · checked Sep 28, 2026
25	Cadline Consultoria E Projetos	Strong evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	11-50	8 contacts →
	Strong evidence “Company Presentation: In the market since 1995, CADLINE CONSULTING AND PROJECTS works in the development of engineering industry in the segments of petrochemicals, chemical…” Source: RevenueBase Database · checked Sep 28, 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: hydro engineering and 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 hydro engineering and consulting firms.
Partial evidence: Its own public description names part of hydro engineering and consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydro engineering and 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 152 hydro engineering and consulting firms based in Rio De Janeiro, Brazil

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Hydro engineering and consulting firms based in Rio De Janeiro, Brazil at a glance

As of Sep 28, 2026

7.0%Verified-email coverage

55.8Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole Brazil list rather than for Rio De Janeiro, so it is reported there. Company counts and contact totals on this page are exact for Rio De Janeiro, over 152 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 hydro engineering and 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 Rio De Janeiro, Brazil whose own description of what they do matches “hydro engineering and 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 hydro engineering and 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 hydro engineering and consulting firms, and records with no verified work email. Companies headquartered outside Rio De Janeiro 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, 598 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 28, 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.

Hydro engineering and consulting firms by metro in Brazil

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 hydro engineering and 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 hydro engineering and consulting firms are there based in Rio De Janeiro, Brazil?

RevenueBase identified 152 hydro engineering and consulting firms headquartered in Rio De Janeiro, 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 in Brazil has the most hydro engineering and consulting firms?

Sao Paulo leads Brazil with 341 headquartered companies, followed by Belo Horizonte (196) and Rio De Janeiro (152).

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 598 verified decision-maker contacts tracked across these 152 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 28, 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.