Company lists · Data refreshed September 2026

Top 25 Leed consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 7,123 companies tracked

RevenueBase identified 7,123 company matches for leed consulting firms worldwide as of September 2026 and tracks 87,596 professional contacts across them, including 32,726 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for leed 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 leed 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

7,123Companies

87,596Contacts tracked

32,726Verified emails

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The 25 largest leed consulting firms worldwide

Ranked by team size

Top 25 of 7,123 company matches for leed 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	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
2	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,210 contacts →
	Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	IMEG	Exact match	Rock Island, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,985 contacts →
	Exact match “Leaders in Engineering and Innovation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	OLA	Exact match	Austin, TX, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5	Bge, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,112 contacts →
	Exact match “Ranked No.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Hoare LEA	Exact match	London, United KingdomHQ recorded Sep 28, 2026	501-1,000	1,103 contacts →
	Exact match “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	BTP Consultants	Exact match	Montigny-le-bretonneux, FranceHQ recorded Sep 28, 2026	201-500	1,066 contacts →
	Exact match “BTP Consultants est un bureau de ̂, et présent à l'échelle nationale depuis plus de.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	WSP EN Chile	Exact match	Vitacura, ChileHQ recorded Sep 28, 2026	10001+	988 contacts →
	Exact match “WSP en una empresa líder en servicios profesionales de consultoría en recursos hídricos, ingeniería, medio ambiente y sustentabilidad.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Simpson Gumpertz & Heger SGH	Exact match	Waltham, MA, United StatesHQ recorded Sep 28, 2026	501-1,000	942 contacts →
	Exact match “Simpson Gumpertz & Heger (SGH) is a national engineering firm committed to delivering holistic advice for our clients’ most complex challenges.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	BPA	Exact match	Montréal, QC, CanadaHQ recorded Sep 28, 2026	1,001-5,000	882 contacts →
	Exact match “IMPACTFUL ENGINEERING At BPA, it’s simple: we are building experts.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Syska Hennessy Group	Exact match	New York, United StatesHQ recorded Sep 28, 2026	501-1,000	803 contacts →
	Exact match “Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Archetype Group	Exact match	Ho Chi Minh City, VietnamHQ recorded Sep 28, 2026	1,001-5,000	801 contacts →
	Exact match “Archetype Group is a leading international construction consultancy company, we are shaping buildings that last with a full range of consulting services: Architecture & Master…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	EBI Consulting	Exact match	Burlington, MA, United StatesHQ recorded Sep 28, 2026	501-1,000	535 contacts →
	Exact match “For 35 years we have been helping investors, lenders, owners, developers, contractors, and property managers reduce risk and optimize their built facilities, infrastructure and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	TTW	Exact match	North Sydney, AustraliaHQ recorded Sep 28, 2026	501-1,000	472 contacts →
	Exact match “Great engineering starts with great people.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Cosmos-Eng	Exact match	Cairo, EgyptHQ recorded Sep 28, 2026	201-500	466 contacts →
	Exact match “Introduction: COSMOS-E Engineers & Consultants is the leading company in multi-disciplinary Engineering and Consultancy Services in Egypt and the Middle-East.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Groundwater & Environmental Services, INC	Exact match	Wall Township, NJ, United StatesHQ recorded Sep 28, 2026	201-500	447 contacts →
	Exact match “We are Groundwater & Environmental Services, Inc, better known as GES.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	AEI Consultants	Exact match	Walnut Creek, CA, United StatesHQ recorded Sep 28, 2026	201-500	433 contacts →
	Exact match “AEI Consultants provides building, environmental, land and sustainability assessment and consulting services throughout North America.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	SIPL	Exact match	Noida, IndiaHQ recorded Sep 28, 2026	n/a	400 contacts →
	Exact match “SIPL Pvt Ltd is an established and reputed firm in the Sustainable domain since 2008.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Glumac	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	201-500	386 contacts →
	Exact match “Glumac, a Tetra Tech Company, is a global leader in building engineering, committed to delivering a low carbon future for all.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	ESA Engineering	Exact match	Sesto Fiorentino, ItalyHQ recorded Sep 28, 2026	201-500	375 contacts →
	Exact match “ESA engineering is a multidisciplinary consulting firm providing comprehensive engineering services on an international scale.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	P2s	Exact match	Long Beach, CA, United StatesHQ recorded Sep 28, 2026	201-500	375 contacts →
	Exact match “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	AESG	Exact match	London, United Arab EmiratesHQ recorded Sep 28, 2026	201-500	373 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 · Sep 28, 2026 · View company records in RevenueBase
23	EMM Consulting PTY Limited	Exact match	St Leonards, AustraliaHQ recorded Sep 28, 2026	201-500	361 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 · Sep 28, 2026 · View company records in RevenueBase
24	RDH Building Science	Exact match	Burnaby, BC, CanadaHQ recorded Sep 28, 2026	201-500	335 contacts →
	Exact match “RDH is a multidisciplinary consulting firm specializing in building performance, durability, and resilience.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Atelier TEN	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	323 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 · 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 “leed 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 7,123 leed consulting firms worldwide

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Leed consulting firms worldwide at a glance

As of Sep 28, 2026

37.4%Verified-email coverage

12.3Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

4,717

11-50

1,885

51-200

392

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 leed consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “leed 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 32,726 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.

Leed consulting firms by location

39 lists · largest first

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

How many leed consulting firms are there worldwide?

RevenueBase identified 7,123 company matches for leed 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?

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

Which country has the most leed consulting firms?

The United States leads with 1,706 companies, followed by Brazil (520) and France (307). Every leed consulting firms list by country and city is linked on this page.

Which city has the most leed consulting firms?

Sao Paulo leads with 82 company records, followed by New York (69) and London (61).

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 32,726 professional contacts with verified work emails tracked across these 7,123 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.