Company lists · Data verified August 2026

Top 25 Esg consulting firms based in Brazil

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 2,789 companies tracked

There are 2,789 esg consulting firms headquartered in Brazil (RevenueBase, August 2026). RevenueBase tracks 21,724 professional contacts across them, including 4,229 with verified work emails and 448 with mobile numbers. Sao Paulo is the largest hub.

This list covers esg consulting firms headquartered in Brazil, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

2,789Companies

21,724Contacts tracked

4,229Verified emails

448Mobile numbers

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The 25 largest esg consulting firms based in Brazil

Ranked by team size

Top 25 of 2,789 esg consulting firms based in Brazil, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Ambipar	Nova Odessa	10001+	2,572	886
2	CTA Engenharia	Rio De Janeiro	201-500	546	51
3	Diagonal	Recife	501-1,000	529	102
4	Synergia Consultoria Socioambiental	Sao Paulo	201-500	495	200
5	Sete Soluções E Tecnologia Ambiental	Belo Horizonte	501-1,000	444	178
6	Martinelli Auditores	Porto Alegre	201-500	261	3
7	Grupo Partnership	Rio De Janeiro	1,001-5,000	239	46
8	GAP Ssma	Goiania	201-500	234	24
9	Econservation Estudos E Projetos Ambientais	Vitoria	51-200	230	31
10	Ambientare	Sao Paulo	51-200	224	58
11	Waycarbon	Belo Horizonte	201-500	219	96
12	Grupo Report	Sao Paulo	51-200	157	79
13	IUS Tecnologia QUE Simplifica A Gestão DE Requisitos Legais E ESG	Belo Horizonte	51-200	157	55
14	Dossel Ambiental	Brasilia	51-200	152	49
15	I Care	Belo Horizonte	51-200	144	62
16	CPEA	Itatira	51-200	136	5
17	NMC Sustentabilidade Integrativa	Belo Horizonte	51-200	133	60
18	Bicho DO Mato Meio Ambiente Environmental Consulting	Conceicao Do Mato Dentro	51-200	121	11
19	Elementus Soluções Ambientais	Belem	51-200	91	30
20	Agroflor Engenharia E Meio Ambiente	Vicosa	51-200	86	18
21	Pinion	Sao Paulo	51-200	83	47
22	P3 Engenharia Elétrica	Indaial	51-200	75	25
23	Ecossis Soluções Ambientais	Porto Alegre	51-200	73	11
24	Sg4	Campinas	51-200	72	26
25	Crnbio Ambiental E Arqueologia	Mossoro	51-200	72	12

Showing 25 of 2,789 esg consulting firms based in Brazil

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Esg consulting firms based in Brazil at a glance

As of Aug 28, 2026

1-10Median size (employees)

Sao PauloLargest hub · 551 HQs

448Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

2,138

11-50

533

51-200

201-500

501-1,000

1,001-5,000

10001+

Esg consulting firms by metro

Metro	Companies
Esg consulting firms in Sao Paulo	551
Esg consulting firms in Rio De Janeiro	150
Esg consulting firms in Belo Horizonte	136
Esg consulting firms in Curitiba	130
Esg consulting firms in Porto Alegre	72
Esg consulting firms in Campinas	52
Esg consulting firms in Fortaleza	52
Esg consulting firms in Salvador	47

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “esg consulting firms”, with match quality audited by blind human judging, and headquartered in Brazil.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many esg consulting firms are there based in Brazil?

There are 2,789 esg consulting firms headquartered in Brazil as of August 2026 (RevenueBase).

What is the largest company on this list?

Ambipar, headquartered in Nova Odessa, tops this list with the largest team on record.

Which city has the most esg consulting firms?

Sao Paulo leads with 551 headquartered companies, followed by Rio De Janeiro (150) and Belo Horizonte (136).

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 4,229 verified decision-maker contacts tracked across these 2,789 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.