Company lists · Data refreshed November 2026

Top 25 Office sustainability consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 12,188 companies tracked

RevenueBase identified 12,188 company matches for office sustainability consultants worldwide as of November 2026 and tracks 104,894 professional contacts across them, including 36,758 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for office 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 office 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

12,188Companies

104,894Contacts tracked

36,758Verified emails

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The 25 largest office sustainability consultants worldwide

Ranked by team size

Top 25 of 12,188 company matches for office 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	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
2	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
3	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
4	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
5	VAN Dorp	Exact match	Zoetermeer, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	923 contacts →
	Exact match “Bij Van Dorp zijn wij ervan doordrongen dat wij de wereld niet voor onszelf hebben.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	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
7	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
8	ACT Group	Exact match	Amsterdam, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	566 contacts →
	Exact match “Organizations come to ACT when a climate target, regulatory requirement, or emissions challenge needs a solution.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	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
10	AESG	Exact match	London, United Arab EmiratesHQ recorded Nov 6, 2026	201-500	427 contacts →
	Exact match “AESG is an international Consultancy, Engineering and Advisory firm committed to driving sustainability in the built environment and beyond.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	SIPL	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	n/a	407 contacts →
	Exact match “SIPL Pvt Ltd is an established and reputed firm in the Sustainable domain since 2008.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	TRIO	Exact match	Irvine, MA, United StatesHQ recorded Nov 6, 2026	201-500	393 contacts →
	Exact match “We are Trio – global energy and sustainability advisors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	P2s	Exact match	Long Beach, CA, United StatesHQ recorded Nov 6, 2026	201-500	379 contacts →
	Exact match “P2S has brought forward-thinking, sustainable engineering solutions to the West Coast and beyond for over 35 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	BSR	Exact match	San Francisco, United StatesHQ recorded Nov 6, 2026	51-200	379 contacts →
	Exact match “BSR® is a sustainable business network that provides global insights, strategic advisory services, and collaborations to nearly 250 member companies in Asia, Europe, and North…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	EMM Consulting PTY Limited	Exact match	St Leonards, AustraliaHQ recorded Nov 6, 2026	201-500	363 contacts →
	Exact match “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	NUS Consulting Group	Exact match	Park Ridge, United StatesHQ recorded Nov 6, 2026	201-500	363 contacts →
	Exact match “National Utility Service, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Umwelt Environmental & Social Consultants	Exact match	Teralba, AustraliaHQ recorded Nov 6, 2026	201-500	347 contacts →
	Exact match “Umwelt has been trusted by clients and communities for over 30 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Climatepartner	Exact match	Munich, GermanyHQ recorded Nov 6, 2026	501-1,000	346 contacts →
	Exact match “ClimatePartner makes climate action valuable for every company at any stage of their journey.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Anthesis ESP	Exact match	Manlleu, SpainHQ recorded Nov 6, 2026	201-500	343 contacts →
	Exact match “Som una empresa especialitzada en sostenibilitat, aliada amb les organitzacions, territoris i persones compromesos amb un món més sostenible, als quals acompanyem en la seva…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Environmental Consulting & Technology, Inc. ECT	Exact match	Gainesville, FL, United StatesHQ recorded Nov 6, 2026	201-500	335 contacts →
	Exact match “ECT delivers environmental solutions for essential infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Korus Group	Exact match	La Murette, ItalyHQ recorded Nov 6, 2026	201-500	320 contacts →
	Exact match “A professional space is more than just square metres.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Atelier TEN	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	313 contacts →
	Exact match “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Quantis	Exact match	Lausanne, SwitzerlandHQ recorded Nov 6, 2026	201-500	311 contacts →
	Exact match “Quantis, part of BCG, is a sustainability consulting firm that helps organizations translate sustainability ambition into measurable business value.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Ecology And Environment, INC	Exact match	Lancaster, NY, United StatesHQ recorded Nov 6, 2026	5,001-10,000	310 contacts →
	Exact match “E&E is now WSP USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Cascade Energy	Exact match	Portland, OR, United StatesHQ recorded Nov 6, 2026	201-500	304 contacts →
	Exact match “At Cascade Energy, we believe in better.” 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 “office 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 12,188 office sustainability consultants worldwide

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Office sustainability consultants worldwide at a glance

As of Nov 6, 2026

35.0%Verified-email coverage

8.6Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

9,143

11-50

2,415

51-200

414

201-500

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 office sustainability consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “office 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 36,758 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.

Office sustainability consultants by location

85 lists · largest first

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

How many office sustainability consultants are there worldwide?

RevenueBase identified 12,188 company matches for office 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?

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

Which country has the most office sustainability consultants?

The United States leads with 1,201 companies, followed by the United Kingdom (1,039) and Brazil (846). Every office sustainability consultants list by country and city is linked on this page.

Which city has the most office sustainability consultants?

London leads with 330 company records, followed by Sao Paulo (151) and Paris (141).

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 36,758 professional contacts with verified work emails tracked across these 12,188 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.