Company lists · Data refreshed September 2026

Top 25 Sustainable development consultancies worldwide

Name: Sustainable development consultancies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 28,050 companies tracked

RevenueBase identified 28,050 company matches for sustainable development consultancies worldwide as of September 2026 and tracks 325,951 professional contacts across them, including 120,187 with verified work emails. Brazil is the largest market and London the largest hub.

This list covers company matches for sustainable development consultancies 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 29, 2026. Country and city lists for sustainable development consultancies 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 29, 2026 How this list was built

28,050Companies

325,951Contacts tracked

120,187Verified emails

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The 25 largest sustainable development consultancies worldwide

Ranked by team size

Top 25 of 28,050 company matches for sustainable development consultancies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	Arcadis	Exact match	Amsterdam, NetherlandsHQ recorded Sep 29, 2026	10001+	33,846 contacts →
	Exact match “Arcadis is a leading global partner, delivering transformative projects with businesses, cities and industries.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Stantec	Exact match	Edmonton, AB, CanadaHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
3	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
4	ERM	Exact match	London, United KingdomHQ recorded Sep 29, 2026	5,001-10,000	9,119 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Roland Berger	Exact match	Munich, GermanyHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
6	SLR Consulting	Exact match	London, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
7	Baringa	Exact match	London, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
8	Tyréns AB	Exact match	SwedenHQ recorded Sep 29, 2026	1,001-5,000	1,916 contacts →
	Exact match “Tyréns is one of Sweden’s leading community development consultancies.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Swca Environmental Consultants	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
10	Vulcain Engineering Group	Exact match	Neuilly-sur-seine, FranceHQ recorded Sep 29, 2026	5,001-10,000	1,496 contacts →
	Exact match “Vulcain Engineering Group is a multi-specialist engineering and consulting group serving industrial companies across the globe, focused on critical sectors: energy, health…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	GFA Consulting Group Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 29, 2026	1,001-5,000	1,382 contacts →
	Exact match “GFA Consulting Group is one of Europe's leading consulting firms in the field of international development cooperation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Posco E&c	Exact match	United StatesHQ recorded Sep 29, 2026	5,001-10,000	1,345 contacts →
	Exact match “Construction & Engineering” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	IPE Global Limited	Exact match	New Delhi, IndiaHQ recorded Sep 29, 2026	501-1,000	1,322 contacts →
	Exact match “Headquartered in India with six international offices in Cambodia, Ethiopia, Kenya, the Philippines, Germany and the United Kingdom, IPE Global Group offers a range of integrated…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Fichtner	Exact match	Stuttgart, GermanyHQ recorded Sep 29, 2026	1,001-5,000	1,279 contacts →
	Exact match “As a leading, independent engineering and consultancy enterprise active in the sectors of energy and infrastructure, Fichtner handles challenging projects in countries all over…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	DGE Danmark	Exact match	Højbjerg, DenmarkHQ recorded Sep 29, 2026	n/a	1,176 contacts →
	Exact match “Miljø er vores kernekompetence og vores ansvar.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	OLA	Exact match	Austin, TX, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
17	URBIS	Exact match	Melbourne, AustraliaHQ recorded Sep 29, 2026	501-1,000	1,096 contacts →
	Exact match “Urbis is more than just a consultancy.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	TSE	Exact match	São Paulo/sp, BrazilHQ recorded Sep 29, 2026	5,001-10,000	1,067 contacts →
	Exact match “Somos a TSE - Total Sustainable Engineering.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Baker Tilly Netherlands	Exact match	Utrecht, NetherlandsHQ recorded Sep 29, 2026	1,001-5,000	996 contacts →
	Exact match “Meer dan cijfers: wij zijn jouw partner in groei Bij Baker Tilly kijken we verder.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Anthesis Group	Exact match	London, United KingdomHQ recorded Sep 29, 2026	1,001-5,000	894 contacts →
	Exact match “Anthesis guides clients to sustainable performance.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Tauw Nederland	Exact match	Deventer, NetherlandsHQ recorded Sep 29, 2026	1,001-5,000	800 contacts →
	Exact match “TAUW is een Europees advies- en ingenieursbureau.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Environmental Science Associates	Exact match	San Francisco, CA, United StatesHQ recorded Sep 29, 2026	501-1,000	732 contacts →
	Exact match “ESA is a 100% employee-owned environmental consulting firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Mars Planning & Engineering Services Private Limited	Exact match	Ahmedabad, IndiaHQ recorded Sep 29, 2026	1,001-5,000	712 contacts →
	Exact match “In the wake of the devastation caused by the earthquake in Gujarat in 2001, MaRS was established with the objective to provide assistance and aid to the local & state governing…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	PD	Exact match	Berlin, GermanyHQ recorded Sep 29, 2026	1,001-5,000	702 contacts →
	Exact match “Die PD ist die Beratung / Für die öffentliche Hand von morgen / Seit 2008 beraten wir ausschließlich öffentliche Auftraggeber zu moderner Verwaltungsarbeit und…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Pell Frischmann	Exact match	London, United KingdomHQ recorded Sep 29, 2026	501-1,000	690 contacts →
	Exact match “Pell Frischmann is a specialist advisory and technical consultancy operating across the built and natural environment, helping to shape a better future for the communities in…” Recorded in the RevenueBase company graph · Sep 29, 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 “sustainable development consultancies”. 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 28,050 sustainable development consultancies worldwide

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Sustainable development consultancies worldwide at a glance

As of Sep 29, 2026

36.9%Verified-email coverage

11.6Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

20,399

11-50

6,039

51-200

1,128

201-500

227

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

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 sustainable development consultancies are linked below.
What qualifies: Company records worldwide whose business descriptions match “sustainable development consultancies” 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 120,187 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 29, 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.

Sustainable development consultancies by location

152 lists · largest first

Every Sustainable development consultancies 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 “sustainable development consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainable development consultancies are there worldwide?

RevenueBase identified 28,050 company matches for sustainable development consultancies 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?

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

Which country has the most sustainable development consultancies?

Brazil leads with 2,513 companies, followed by the United States (2,030) and the United Kingdom (1,864). Every sustainable development consultancies list by country and city is linked on this page.

Which city has the most sustainable development consultancies?

London leads with 623 company records, followed by Sao Paulo (416) and Paris (369).

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 120,187 professional contacts with verified work emails tracked across these 28,050 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 29, 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.