Company lists · Data refreshed September 2026

Top 25 Green building consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 40,205 companies tracked

RevenueBase identified 40,205 company matches for green building consulting firms worldwide as of September 2026 and tracks 705,763 professional contacts across them, including 255,057 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for green building consulting firms 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 28, 2026. Country and city lists for green building consulting firms 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 28, 2026 How this list was built

40,205Companies

705,763Contacts tracked

255,057Verified emails

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The 25 largest green building consulting firms worldwide

Ranked by team size

Top 25 of 40,205 company matches for green building consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	AECOM	Exact match	Dallas, TX, United StatesHQ recorded Sep 28, 2026	10001+	63,914 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Arcadis	Exact match	Amsterdam, NetherlandsHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
3	Stantec	Exact match	Edmonton, AB, CanadaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4	SWECO	Exact match	Stockholm, SwedenHQ recorded Sep 28, 2026	10001+	18,445 contacts →
	Exact match “Sweco is at the heart of the green transition - planning and designing the sustainable communities and cities of the future.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Ramboll	Exact match	Copenhagen, DenmarkHQ recorded Sep 28, 2026	10001+	15,715 contacts →
	Exact match “Ramboll is a global architecture, engineering and consultancy company founded in Denmark in 1945.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	DAR	Exact match	Beirut, LebanonHQ recorded Sep 28, 2026	10001+	10,822 contacts →
	Exact match “Dar is one of the world’s leading consultancies, providing design, planning, engineering, sustainability consulting, digital solutions and services, project management, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
8	ERM	Exact match	London, United KingdomHQ recorded Sep 28, 2026	5,001-10,000	9,119 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	COWI	Exact match	Lyngby, DenmarkHQ recorded Sep 28, 2026	5,001-10,000	7,438 contacts →
	Exact match “Together with customers, partners and colleagues, we shape a future where people and societies grow and flourish.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	TRC Companies, INC	Exact match	Windsor, CT, United StatesHQ recorded Sep 28, 2026	5,001-10,000	7,017 contacts →
	Exact match “TRC, a member of WSP, stands for adaptability.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	SLR Consulting	Exact match	London, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
12	Drees & Sommer	Exact match	Stuttgart, GermanyHQ recorded Sep 28, 2026	5,001-10,000	3,475 contacts →
	Exact match “Uniting opposites to create a world we want to live in Drees & Sommer is a partner-managed, global consulting company providing a single source of consultation and implementation…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Julius Berger Nigeria PLC	Exact match	Utako, NigeriaHQ recorded Sep 28, 2026	10001+	3,347 contacts →
	Exact match “Julius Berger Nigeria Plc is a leading construction company offering integrated construction solutions and related services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Rider Levett Bucknall RLB	Exact match	Sydney, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	3,299 contacts →
	Exact match “RLB.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Golder	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	5,001-10,000	3,167 contacts →
	Exact match “Golder was acquired by WSP.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	KEO International Consultants	Exact match	Safat, KuwaitHQ recorded Sep 28, 2026	1,001-5,000	3,038 contacts →
	Exact match “From shaping iconic skylines to crafting sustainable communities, KEO builds legacies for a better tomorrow.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Gleeds	Exact match	Americas, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
18	Dewberry	Exact match	Fairfax, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,795 contacts →
	Exact match “Dewberry is a leading, market-facing firm with a proven history of providing professional services to a wide variety of public- and private-sector clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	NIRAS	Exact match	Allerød, DenmarkHQ recorded Sep 28, 2026	1,001-5,000	2,699 contacts →
	Exact match “At NIRAS, we engineer solutions for a shared future.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	APTIM	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
21	TYPSA	Exact match	San Sebastian De Los Reyes, SpainHQ recorded Sep 28, 2026	1,001-5,000	2,422 contacts →
	Exact match “TYPSA is an independent consulting and engineering services group, and a leader in infrastructure, energy, environmental and city solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Mckinstry	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
23	Langan Engineering & Environmental Services	Exact match	Parsippany, NJ, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,177 contacts →
	Exact match “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
25	Ricardo	Exact match	West Sussex, United KingdomHQ recorded Sep 28, 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 28, 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 “green building consulting firms”. 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 40,205 green building consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 255,057 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Green building consulting firms worldwide at a glance

As of Sep 28, 2026

36.1%Verified-email coverage

17.6Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

26,194

11-50

10,418

51-200

2,460

201-500

521

501-1,000

166

1,001-5,000

161

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 green building consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “green building consulting firms” 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 255,057 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 28, 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.

Green building consulting firms by location

185 lists · largest first

Every Green building 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 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 “green building consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many green building consulting firms are there worldwide?

RevenueBase identified 40,205 company matches for green building consulting firms 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?

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

Which country has the most green building consulting firms?

The United States leads with 5,464 companies, followed by Brazil (2,505) and France (2,316). Every green building consulting firms list by country and city is linked on this page.

Which city has the most green building consulting firms?

London leads with 543 company records, followed by Sao Paulo (385) and Paris (315).

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 255,057 professional contacts with verified work emails tracked across these 40,205 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 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 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.