Company lists · Data refreshed November 2026

Top 25 Public sector sustainability consultants worldwide

Name: Public sector sustainability consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 13,131 companies tracked

RevenueBase identified 13,131 company matches for public sector sustainability consultants worldwide as of November 2026 and tracks 168,427 professional contacts across them, including 54,887 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for public sector sustainability consultants 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 November 6, 2026. Country and city lists for public sector sustainability consultants 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 Nov 6, 2026 How this list was built

13,131Companies

168,427Contacts tracked

54,887Verified emails

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The 25 largest public sector sustainability consultants worldwide

Ranked by team size

Top 25 of 13,131 company matches for public sector sustainability consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Engie Solutions France	Exact match	La Garenne-colombes, FranceHQ recorded Nov 6, 2026	10001+	11,810 contacts →
	Exact match “Les activités Infrastructures Energétiques Locales d’ENGIE accompagnent les collectivités, les industries et le secteur du bâtiment sur la voie de la décarbonation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	ERM	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	9,761 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	SLR Consulting	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	4,208 contacts →
	Exact match “SLR is a committed partner in our clients’ sustainability journeys.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	RPS	Exact match	Abingdon, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	3,964 contacts →
	Exact match “Founded in 1970, RPS is part of Tetra Tech, a leading global provider of consulting and engineering services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Gleeds	Exact match	Americas, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,131 contacts →
	Exact match “We’re not just a construction consultancy, we're a catalyst for change.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	WSP I Sverige	Exact match	Stockholm-marievik, SwedenHQ recorded Nov 6, 2026	10001+	2,749 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 · Nov 6, 2026 · View company records in RevenueBase
7	Ecovadis	Exact match	Paris, JapanHQ recorded Nov 6, 2026	1,001-5,000	1,842 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	ADEME	Exact match	Montrouge, FranceHQ recorded Nov 6, 2026	501-1,000	1,827 contacts →
	Exact match “À l’ADEME - l’Agence de la transition écologique, nous sommes résolument engagés dans la lutte contre le réchauffement climatique et la dégradation des ressources.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	IPE Global Limited	Exact match	New Delhi, IndiaHQ recorded Nov 6, 2026	501-1,000	1,452 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 · Nov 6, 2026 · View company records in RevenueBase
10	Apex Companies	Exact match	Rockville, MD, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,321 contacts →
	Exact match “Who is Apex?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Voyants Solutions Private Limited	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,204 contacts →
	Exact match “Where Engineering Meets Vision Voyants is an Indian-origin multinational infrastructure consulting firm delivering integrated solutions across the project lifecycle-from concept…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	DGE Danmark	Exact match	Højbjerg, DenmarkHQ recorded Nov 6, 2026	n/a	1,192 contacts →
	Exact match “Miljø er vores kernekompetence og vores ansvar.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	OLA	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	n/a	1,164 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 · Nov 6, 2026 · View company records in RevenueBase
14	BPA	Exact match	Montréal, QC, CanadaHQ recorded Nov 6, 2026	1,001-5,000	965 contacts →
	Exact match “IMPACTFUL ENGINEERING At BPA, it’s simple: we are building experts.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Tauw Nederland	Exact match	Deventer, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	818 contacts →
	Exact match “TAUW is een Europees advies- en ingenieursbureau.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Psomas	Exact match	Los Angeles, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	786 contacts →
	Exact match “Our award-winning projects are produced through innovation, creativity, and technical expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Dalcour Maclaren	Exact match	Chesterton, United KingdomHQ recorded Nov 6, 2026	501-1,000	667 contacts →
	Exact match “Dalcour Maclaren: delivering land, stakeholder and environmental solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	CSD Engineers	Exact match	Givisiez, SwitzerlandHQ recorded Nov 6, 2026	1,001-5,000	662 contacts →
	Exact match “CSD is one of the leading engineering consultancy enterprises in Switzerland.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Quadrante	Exact match	Alfragide, PortugalHQ recorded Nov 6, 2026	1,001-5,000	655 contacts →
	Exact match “Quadrante is an Iberian leading professional services consulting firm in Engineering, Architecture, Environment and Sustainability, renowned for its agility, client-centric…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Antea Group USA	Exact match	St. Paul, MD, United StatesHQ recorded Nov 6, 2026	1,001-5,000	649 contacts →
	Exact match “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Waterman Group	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	607 contacts →
	Exact match “Waterman Group is a multidisciplinary consultancy providing sustainable solutions to meet the planning, engineering design and project delivery needs of the property…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Prosul	Exact match	Florianopolis, BrazilHQ recorded Nov 6, 2026	501-1,000	587 contacts →
	Exact match “Especializada na prestação de serviços de engenharia consultiva, com mais de 30 anos de experiência, a PROSUL atua nas mais diversas áreas da infraestrutura.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	ADP Consulting	Exact match	Melbourne, AustraliaHQ recorded Nov 6, 2026	201-500	472 contacts →
	Exact match “ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Fichtner Consulting Engineers LTD	Exact match	Stockport, United KingdomHQ recorded Nov 6, 2026	51-200	436 contacts →
	Exact match “Fichtner is one of the world's leading independent engineering consultancy firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	PD	Exact match	Berlin, GermanyHQ recorded Nov 6, 2026	1,001-5,000	435 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 · Nov 6, 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 “public sector sustainability consultants”. 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 13,131 public sector sustainability consultants worldwide

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Public sector sustainability consultants worldwide at a glance

As of Nov 6, 2026

32.6%Verified-email coverage

12.8Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

9,405

11-50

2,871

51-200

561

201-500

117

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 public sector sustainability consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “public sector sustainability consultants” 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 54,887 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 November 6, 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.

Public sector sustainability consultants by location

92 lists · largest first

Every Public sector sustainability consultants 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 “public sector sustainability consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many public sector sustainability consultants are there worldwide?

RevenueBase identified 13,131 company matches for public sector sustainability consultants worldwide as of November 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?

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

Which country has the most public sector sustainability consultants?

The United Kingdom leads with 1,190 companies, followed by Brazil (1,131) and the United States (914). Every public sector sustainability consultants list by country and city is linked on this page.

Which city has the most public sector sustainability consultants?

London leads with 358 company records, followed by Sao Paulo (173) and Paris (144).

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 54,887 professional contacts with verified work emails tracked across these 13,131 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 November 6, 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.