Company lists · Data refreshed September 2026

Top 25 Mineral resource assessment companies based in Brazil

Name: Mineral resource assessment 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 185 companies tracked

RevenueBase identified 185 mineral resource assessment companies headquartered in Brazil as of September 2026 and tracks 2,139 professional contacts across them, including 427 with verified work emails. Belo Horizonte is the largest hub.

This list covers mineral resource assessment 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

185Companies

2,139Contacts tracked

427Verified emails

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The 25 largest mineral resource assessment companies based in Brazil

Ranked by team size

Top 25 of 185 mineral resource assessment 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 mineral resource assessment 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	Bemisa	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	1,001-5,000	696 contacts →
	Partial evidence “Com 18 anos de experiência, atualmente estamos presentes em todas as regiões do país, com um portfólio diversificado que engloba uma ampla gama de minerais, tais como minério de…” Source: RevenueBase Database · checked Sep 20, 2026
2	DF Engineering	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	201-500	232 contacts →
	Partial evidence “Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.” Source: RevenueBase Database · checked Sep 20, 2026
3	EXE Mineral	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	501-1,000	65 contacts →
	Partial evidence “Excelência Multiplicada em Execução no Setor Mineral” Source: RevenueBase Database · checked Sep 20, 2026
4	Geonew Consultoria EM Geologia, Mineração E Meio Ambiente	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	51-200	49 contacts →
	Partial evidence “A Geonew Consultoria e Serviços Geológicos Ltda é um empresa nova no mercado de prestação de serviços de geologia e exploração mineral, mas que conta com profissionais sêniores…” Source: RevenueBase Database · checked Sep 20, 2026
5	Prominer Projetos	Partial evidence	São Paulo, BrazilHQ checked Sep 20, 2026	11-50	38 contacts →
	Partial evidence “Desde 1985 prestando consultoria para empreendimentos do setor de mineração e infraestrutura, proporcionando soluções, suporte e serviços de engenharia mineral, geologia, meio…” Source: RevenueBase Database · checked Sep 20, 2026
6	Mineral Geologia	Partial evidence	Curitiba, BrazilHQ checked Sep 20, 2026	11-50	21 contacts →
	Partial evidence “Empresa de Geologia, que presta serviços de consultoria Mineral, Ambiental, Industrial, Geoprocessamento e Topografia, voltado à Mineração, Indústrias de Beneficiamento Mineral e…” Source: RevenueBase Database · checked Sep 20, 2026
7	Cacto Consulting	Indirect evidence	Parnamirim, BrazilHQ checked Sep 20, 2026	51-200	17 contacts →
	Indirect evidence “Cacto is a young company with innovative thinking that has been working through consultancy and technical assistance in the areas of Geology, Mining and the Environment for…” Source: RevenueBase Database · checked Sep 20, 2026
8	Atlântica Minas Mineração	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	51-200	15 contacts →
	Indirect evidence “A Atlântica Minas Empreendimentos e Participações Ltda, está localizada na Rua Rua João Antônio de Azeredo, nº165 Bairro Belvedere- Belo Horizonte - Minas Gerais.” Source: RevenueBase Database · checked Sep 20, 2026
9	Geoinform	Partial evidence	Rio Claro, BrazilHQ checked Sep 20, 2026	1-10	12 contacts →
	Partial evidence “Há 35 anos a Geoinform Ambiental é uma empresa de consultoria em geologia, mineração, meio ambiente e geofísica.” Source: RevenueBase Database · checked Sep 20, 2026
10	Thalweg Tecnologia E Serviços DE Geotecnia	Indirect evidence	Niterói, BrazilHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Empresa de geologia e projetos de engenharia, consolidada no mercado, fundada há mais de 20 anos pelo Msc.” Source: RevenueBase Database · checked Sep 20, 2026
11	Sdpm Mining Consulting	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “SDPM Mining Consulting has been operating in the market since 1993, providing services in the areas of mine planning and geology.” Source: RevenueBase Database · checked Sep 20, 2026
12	GEO Supply Soluções Geológicas Ltda	Indirect evidence	São Paulo, BrazilHQ checked Sep 20, 2026	1-10	10 contacts →
	Indirect evidence “A Geo Supply tem como objetivo oferecer os planos de investigações geológicas mais consistentes e focados nos principais parâmetros de diferentes cenários sejam eles voltados a…” Source: RevenueBase Database · checked Sep 20, 2026
13	Delta Consultoria Geológica E Mineração Ltda	Partial evidence	Petrolina, BrazilHQ checked Sep 20, 2026	51-200	10 contacts →
	Partial evidence “A Delta Consultoria Geológica e Mineração foi fundada em 1991 e atua com foco nas áreas de geotecnia e pesquisa mineral.” Source: RevenueBase Database · checked Sep 20, 2026
14	Cráton	Indirect evidence	Brasilia, BrazilHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “Empresa de geologia vinculada à Universidade de Brasília, que oferece serviço especializado e de qualidade para atender sua demanda.” Source: RevenueBase Database · checked Sep 20, 2026
15	Ígnea Geologia & Meio Ambiente	Partial evidence	Nova Iguaçu, BrazilHQ checked Sep 20, 2026	1-10	9 contacts →
	Partial evidence “Com uma equipe com mais 10 anos de experiência no setor mineral, a ÍGNEA está em constante evolução, sempre observando as novas tecnologias e as melhores práticas para atender…” Source: RevenueBase Database · checked Sep 20, 2026
16	Geoansata	Partial evidence	Nova Lima, BrazilHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “Projetos, consultoria, treinamento, estudos setoriais e estratégias para produtores e consumidores da indústria mineral.” Source: RevenueBase Database · checked Sep 20, 2026
17	Geopesquisa Investigações Geológicas Eireli	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “A Geopesquisa Investigações Geológicas Ltda.” Source: RevenueBase Database · checked Sep 20, 2026
18	A11i	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “A A11i é uma empresa de prestação de serviços técnicos, de consultoria e de engenharia para o setor mineral.” Source: RevenueBase Database · checked Sep 20, 2026
19	LOM Consultants LTD	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “LOM Consultants provide a comprehensive range of consulting services and independent advice to mining companies and financial institutions.” Source: RevenueBase Database · checked Sep 20, 2026
20	Mineract	Partial evidence	BrazilHQ checked Sep 20, 2026	11-50	6 contacts →
	Partial evidence “Empresa de Consultoria Mineral, especialista em Gestão de Mineração e desenvolvimento de patrimônio minerário.” Source: RevenueBase Database · checked Sep 20, 2026
21	Rocha Lima	Partial evidence	Nova Lima, BrazilHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “Atuação integrada em mineração, meio ambiente e estruturação de ativos minerais.” Source: RevenueBase Database · checked Sep 20, 2026
22	Leonel Rabelo Associados	Partial evidence	Nova Lima, BrazilHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “Somos engenheiros com atuação na indústria mineral.” Source: RevenueBase Database · checked Sep 20, 2026
23	Geominas Geologia E Construtora	Indirect evidence	Parauapebas, BrazilHQ checked Sep 20, 2026	201-500	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
24	Urbminas Ltda	Partial evidence	Cachoeiro De Itapemirim, BrazilHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “A Urbminas tem como principal objetivo ajudar mineradores e futuros mineradores de todo Brasil a terem segurança no gerenciamento de seus direitos minerários junto à ANM - Agência…” Source: RevenueBase Database · checked Sep 20, 2026
25	Extima Projects	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Company that develops cost estimates for projects in the mining and related areas, with an approach focused on the real esteem for its customers and also for its purposes and…” 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: mineral resource assessment 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 mineral resource assessment companies.
Partial evidence: Its own public description names part of mineral resource assessment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mineral resource assessment 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 185 mineral resource assessment companies based in Brazil

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Mineral resource assessment companies based in Brazil at a glance

As of Sep 20, 2026

20.0%Verified-email coverage

11.6Average contacts per company

1-10Median size (employees)

23.2%Largest-city concentration · Belo Horizonte

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

131

11-50

51-200

201-500

501-1,000

1,001-5,000

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 185 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 mineral resource assessment 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 “mineral resource assessment 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 mineral resource assessment 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 mineral resource assessment 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, 427 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.

Mineral resource assessment companies by metro

Mineral resource assessment companies in Belo Horizonte43

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 mineral resource assessment 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 mineral resource assessment companies are there based in Brazil?

RevenueBase identified 185 mineral resource assessment 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?

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

Which city has the most mineral resource assessment companies?

Belo Horizonte leads with 43 headquartered companies, followed by Sao Paulo (10) and Nova Lima (8).

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 427 verified decision-maker contacts tracked across these 185 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.