Company lists · Data refreshed September 2026

Top 25 Emissions management consulting firms worldwide

Name: Emissions management consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 19,345 companies tracked

RevenueBase identified 19,345 emissions management consulting firms worldwide as of September 2026 and tracks 245,141 professional contacts across them, including 84,822 with verified work emails. The United States is the largest market and London the largest hub.

This list covers emissions management consulting firms worldwide, 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. Country and city lists for emissions management consulting firms follow the table.

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

19,345Companies

245,141Contacts tracked

84,822Verified emails

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The 25 largest emissions management consulting firms worldwide

Ranked by team size

Top 25 of 19,345 emissions management consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to emissions management 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	WOOD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 28, 2026	10001+	26,949 contacts →
	Partial evidence “Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.” Source: RevenueBase Database · checked Sep 28, 2026
2	Engie Solutions France	Indirect evidence	La Garenne-colombes, FranceHQ checked Sep 28, 2026	10001+	12,011 contacts →
	Indirect evidence “Les activités Infrastructures Energétiques Locales d’ENGIE accompagnent les collectivités, les industries et le secteur du bâtiment sur la voie de la décarbonation.” Source: RevenueBase Database · checked Sep 28, 2026
3	ERM	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	9,119 contacts →
	Indirect evidence “Sustainability is our business.” Source: RevenueBase Database · checked Sep 28, 2026
4	Dalkia	Indirect evidence	Saint-andré-lez-lille, FranceHQ checked Sep 28, 2026	10001+	8,427 contacts →
	Indirect evidence “Dalkia : ensemble, relevons le défi climatique!” Source: RevenueBase Database · checked Sep 28, 2026
5	SLR Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	3,848 contacts →
	Indirect evidence “SLR is a committed partner in our clients’ sustainability journeys.” Source: RevenueBase Database · checked Sep 28, 2026
6	Ambipar	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	10001+	2,599 contacts →
	Indirect evidence “Our mission is to promote ecological transformation by investing in decarbonization projects, circular economy, energy transition, and environmental regeneration.” Source: RevenueBase Database · checked Sep 28, 2026
7	Mckinstry	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,213 contacts →
	Indirect evidence “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Source: RevenueBase Database · checked Sep 28, 2026
8	Clearesult	Indirect evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,121 contacts →
	Indirect evidence “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Source: RevenueBase Database · checked Sep 28, 2026
9	Ecovadis	Indirect evidence	Paris, JapanHQ checked Sep 28, 2026	1,001-5,000	1,854 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
10	Swca Environmental Consultants	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,629 contacts →
	Strong evidence “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Source: RevenueBase Database · checked Sep 28, 2026
11	Montrose Environmental Group	Indirect evidence	Little Rock, AR, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,529 contacts →
	Indirect evidence “Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.” Source: RevenueBase Database · checked Sep 28, 2026
12	Adec Innovations	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,304 contacts →
	Partial evidence “ADEC Innovations seamlessly delivers fully integrated, cost-effective industry expertise, business process & data management, and software services.” Source: RevenueBase Database · checked Sep 28, 2026
13	DGE Danmark	Indirect evidence	Højbjerg, DenmarkHQ checked Sep 28, 2026	n/a	1,176 contacts →
	Indirect evidence “Miljø er vores kernekompetence og vores ansvar.” Source: RevenueBase Database · checked Sep 28, 2026
14	OLA	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	n/a	1,145 contacts →
	Partial evidence “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Source: RevenueBase Database · checked Sep 28, 2026
15	Alliance Technical Group	Indirect evidence	Decatur, AL, United StatesHQ checked Sep 28, 2026	1,001-5,000	956 contacts →
	Indirect evidence “Alliance is a new kind of environmental services company-powered by innovation, focused on service, and committed to client success.” Source: RevenueBase Database · checked Sep 28, 2026
16	Anthesis Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	894 contacts →
	Indirect evidence “Anthesis guides clients to sustainable performance.” Source: RevenueBase Database · checked Sep 28, 2026
17	Achilles Information Limited	Indirect evidence	Abingdon, United KingdomHQ checked Sep 28, 2026	501-1,000	836 contacts →
	Indirect evidence “For more than 30 years, Achilles has protected organisations’ business interests and reputations by providing unrivalled levels of supply chain transparency, carbon reduction and…” Source: RevenueBase Database · checked Sep 28, 2026
18	South Pole	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 28, 2026	501-1,000	811 contacts →
	Indirect evidence “South Pole is the world's leading carbon asset developer and climate consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
19	Interagua Ecuador	Indirect evidence	Guayaquil, EcuadorHQ checked Sep 28, 2026	501-1,000	783 contacts →
	Indirect evidence “Somos una empresa sólida, confiable, orientada al cliente; líder en el manejo ambiental, con procesos de calidad, tecnología y recursos humanos competentes.” Source: RevenueBase Database · checked Sep 28, 2026
20	Energy Solutions	Partial evidence	Oakland, CA, United StatesHQ checked Sep 28, 2026	201-500	772 contacts →
	Partial evidence “Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.” Source: RevenueBase Database · checked Sep 28, 2026
21	Inerco	Indirect evidence	Sevilla, SpainHQ checked Sep 28, 2026	1,001-5,000	688 contacts →
	Indirect evidence “INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…” Source: RevenueBase Database · checked Sep 28, 2026
22	Uniqus Consultech INC	Partial evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	501-1,000	675 contacts →
	Partial evidence “Uniqus Consultech is an AI and global tech-enabled consulting company that specializes in Accounting & Reporting Consulting, Governance, Risk & Compliance, Sustainability &…” Source: RevenueBase Database · checked Sep 28, 2026
23	Ricardo PLC	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	670 contacts →
	Indirect evidence “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Source: RevenueBase Database · checked Sep 28, 2026
24	Antea Group USA	Partial evidence	St Paul, MN, United StatesHQ checked Sep 28, 2026	1,001-5,000	658 contacts →
	Partial evidence “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Source: RevenueBase Database · checked Sep 28, 2026
25	Envea Global	Indirect evidence	Poissy, FranceHQ checked Sep 28, 2026	501-1,000	639 contacts →
	Indirect evidence “ENVEA: Elevating Standards.” 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: emissions management 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 emissions management consulting firms.
Partial evidence: Its own public description names part of emissions management consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name emissions management 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 19,345 emissions management consulting firms worldwide

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Emissions management consulting firms worldwide at a glance

As of Sep 28, 2026

34.6%Verified-email coverage

12.7Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

13,528

11-50

4,597

51-200

884

201-500

156

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 emissions management 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.
Coverage: Every country. Country and city lists for emissions management consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “emissions management 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 emissions management 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 emissions management consulting firms, and records with no verified work email.
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, 84,822 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.

Emissions management consulting firms by location

105 lists · largest first

Every Emissions management consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 emissions management 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 emissions management consulting firms are there worldwide?

RevenueBase identified 19,345 emissions management consulting firms worldwide 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?

WOOD, headquartered in Aberdeen, tops this list with the largest team on record.

Which country has the most emissions management consulting firms?

The United States leads with 2,751 companies, followed by Brazil (1,840) and the United Kingdom (1,180). Every emissions management consulting firms list by country and city is linked on this page.

Which city has the most emissions management consulting firms?

London leads with 370 headquartered companies, followed by Sao Paulo (312) and Paris (216).

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 84,822 verified decision-maker contacts tracked across these 19,345 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.