Company lists · Data refreshed September 2026

Top 25 Sustainability consulting services worldwide

Name: Sustainability consulting services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 34,435 companies tracked

RevenueBase identified 34,435 company matches for sustainability consulting services worldwide as of September 2026 and tracks 452,316 professional contacts across them, including 166,870 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for sustainability consulting services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 22, 2026. Country and city lists for sustainability consulting services follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 22, 2026 How this list was built

34,435Companies

452,316Contacts tracked

166,870Verified emails

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The 25 largest sustainability consulting services worldwide

Ranked by team size

Top 25 of 34,435 company matches for sustainability consulting services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Jacobs	Exact match	Dallas, TX, United StatesHQ recorded Sep 22, 2026	10001+	46,351 contacts →
	Exact match “At Jacobs, we're challenging today to reinvent tomorrow – delivering outcomes and solutions for the world's most complex challenges.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2	Veolia	Exact match	Aubervilliers, FranceHQ recorded Sep 22, 2026	10001+	30,019 contacts →
	Exact match “Veolia, a global leader in environmental services, works every day to build environmental security for the benefit of public health and the competitiveness of industries and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3	Stantec	Exact match	Edmonton, AB, CanadaHQ recorded Sep 22, 2026	10001+	28,416 contacts →
	Exact match “Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Sep 22, 2026	10001+	9,318 contacts →
	Exact match “What if you could shape built and natural environments – and the future of those that use them?” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5	ERM	Exact match	London, United KingdomHQ recorded Sep 22, 2026	5,001-10,000	9,119 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6	Dalkia	Exact match	Saint-andré-lez-lille, FranceHQ recorded Sep 22, 2026	10001+	8,427 contacts →
	Exact match “Dalkia : ensemble, relevons le défi climatique!” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7	Roland Berger	Exact match	Munich, GermanyHQ recorded Sep 22, 2026	1,001-5,000	4,632 contacts →
	Exact match “Roland Berger is the only leading global strategy consultancy of European origin.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8	SLR Consulting	Exact match	London, United KingdomHQ recorded Sep 22, 2026	1,001-5,000	3,848 contacts →
	Exact match “SLR is a committed partner in our clients’ sustainability journeys.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9	Gleeds	Exact match	Americas, United StatesHQ recorded Sep 22, 2026	1,001-5,000	2,874 contacts →
	Exact match “We’re not just a construction consultancy, we're a catalyst for change.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10	Veolia UK	Exact match	London, United KingdomHQ recorded Sep 22, 2026	10001+	2,823 contacts →
	Exact match “Veolia UK provides solutions for ecological transformation which means reconciling human progress with environmental protection.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11	APTIM	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 22, 2026	1,001-5,000	2,639 contacts →
	Exact match “APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12	Ambipar	Exact match	Sao Paulo, BrazilHQ recorded Sep 22, 2026	10001+	2,599 contacts →
	Exact match “Our mission is to promote ecological transformation by investing in decarbonization projects, circular economy, energy transition, and environmental regeneration.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13	BDO Nederland	Exact match	Eindhoven, NetherlandsHQ recorded Sep 22, 2026	1,001-5,000	2,428 contacts →
	Exact match “At BDO, we help people and organisations achieve their sustainable future.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14	Frost & Sullivan	Exact match	San Antonio, TX, United StatesHQ recorded Sep 22, 2026	1,001-5,000	2,330 contacts →
	Exact match “For over six decades, Frost & Sullivan has helped the world’s top companies toward transformational growth journeys that result in a stream of innovative growth opportunities.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15	Mckinstry	Exact match	Seattle, WA, United StatesHQ recorded Sep 22, 2026	1,001-5,000	2,213 contacts →
	Exact match “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16	Baringa	Exact match	London, United KingdomHQ recorded Sep 22, 2026	1,001-5,000	2,179 contacts →
	Exact match “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Sep 22, 2026	1,001-5,000	2,121 contacts →
	Exact match “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18	Ricardo	Exact match	West Sussex, United KingdomHQ recorded Sep 22, 2026	1,001-5,000	2,104 contacts →
	Exact match “Ricardo, a member of @WSP, is a global engineering company, specialising in complex propulsion, driveline and energy systems, delivering high integrity solutions for customers…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19	BBA Consultants	Exact match	Mont-saint-hilaire, QC, CanadaHQ recorded Sep 22, 2026	1,001-5,000	1,863 contacts →
	Exact match “We help companies with their challenges and transformation by relying on our sharp business acumen, extensive practical experience and vast technological curiosity.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20	Ecovadis	Exact match	Paris, JapanHQ recorded Sep 22, 2026	1,001-5,000	1,854 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21	Swca Environmental Consultants	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 22, 2026	1,001-5,000	1,629 contacts →
	Exact match “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22	Montrose Environmental Group	Exact match	Little Rock, AR, United StatesHQ recorded Sep 22, 2026	1,001-5,000	1,529 contacts →
	Exact match “Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23	Adec Innovations	Exact match	Irvine, CA, United StatesHQ recorded Sep 22, 2026	1,001-5,000	1,304 contacts →
	Exact match “ADEC Innovations seamlessly delivers fully integrated, cost-effective industry expertise, business process & data management, and software services.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24	DGE Danmark	Exact match	Højbjerg, DenmarkHQ recorded Sep 22, 2026	n/a	1,176 contacts →
	Exact match “Miljø er vores kernekompetence og vores ansvar.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25	OLA	Exact match	Austin, TX, United StatesHQ recorded Sep 22, 2026	n/a	1,145 contacts →
	Exact match “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “sustainability consulting services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 34,435 sustainability consulting services worldwide

See the full list, filter by size, metro and specialty, and access 166,870 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainability consulting services worldwide at a glance

As of Sep 22, 2026

36.9%Verified-email coverage

13.1Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

25,384

11-50

7,083

51-200

1,371

201-500

286

501-1,000

1,001-5,000

103

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for sustainability consulting services are linked below.
What qualifies: Company records worldwide whose business descriptions match “sustainability consulting services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 166,870 professional contacts with verified work emails across the full matched dataset. 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 22, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Sustainability consulting services by location

140 lists · largest first

Every Sustainability consulting services 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “sustainability consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainability consulting services are there worldwide?

RevenueBase identified 34,435 company matches for sustainability consulting services worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Jacobs tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most sustainability consulting services?

The United States leads with 3,965 companies, followed by Brazil (3,099) and the United Kingdom (2,068). Every sustainability consulting services list by country and city is linked on this page.

Which city has the most sustainability consulting services?

London leads with 669 company records, followed by Sao Paulo (527) and Paris (445).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 166,870 professional contacts with verified work emails tracked across these 34,435 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 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 SmartSearch, 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.