Company lists · Data refreshed November 2026

Top 25 Leed consultants worldwide

RevenueBase identified 22,475 company matches for leed consultants worldwide as of November 2026 and tracks 273,636 professional contacts across them, including 98,633 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for leed 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 leed 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
22,475Companies
273,636Contacts tracked
98,633Verified emails
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The 25 largest leed consultants worldwide

Ranked by team size
Top 25 of 22,475 company matches for leed 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchOlathe, NE, United StatesHQ recorded Nov 6, 20265,001-10,0006,576 contacts →

Exact match

“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchUtako, NigeriaHQ recorded Nov 6, 202610001+3,609 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchOslo, NorwayHQ recorded Nov 6, 20261,001-5,0002,654 contacts →

Exact match

“Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchParsippany, TN, United StatesHQ recorded Nov 6, 20261,001-5,0002,492 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchChantilly, VA, United StatesHQ recorded Nov 6, 20261,001-5,0002,363 contacts →

Exact match

“ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchRock Island, IL, United StatesHQ recorded Nov 6, 20261,001-5,0002,116 contacts →

Exact match

“Leaders in Engineering and Innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchTorrance, WA, United StatesHQ recorded Nov 6, 20261,001-5,0001,481 contacts →

Exact match

“Partner Assessment Corp.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHøjbjerg, DenmarkHQ recorded Nov 6, 2026n/a1,192 contacts →

Exact match

“Miljø er vores kernekompetence og vores ansvar.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,0001,183 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMontigny-le-bretonneux, FranceHQ recorded Nov 6, 2026201-5001,170 contacts →

Exact match

“BTP Consultants est un bureau de ̂, et présent à l'échelle nationale depuis plus de.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAustin, TX, United StatesHQ recorded Nov 6, 2026n/a1,164 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
12Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,160 contacts →

Exact match

“Ranked No.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202610001+1,130 contacts →

Exact match

“Mapa Group has emerged as a global leader in the engineering and construction industry, now spanning three continents.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchVitacura, ChileHQ recorded Nov 6, 202610001+1,079 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWaltham, CA, United StatesHQ recorded Nov 6, 2026501-1,000969 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMontréal, QC, CanadaHQ recorded Nov 6, 20261,001-5,000965 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
17Exact matchKolkata, IndiaHQ recorded Nov 6, 20261,001-5,000941 contacts →

Exact match

“M.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSeattle, CO, United StatesHQ recorded Nov 6, 2026501-1,000919 contacts →

Exact match

“The right team is more than an advantage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHo Chi Minh City, VietnamHQ recorded Nov 6, 20261,001-5,000885 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 · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBrisbane, AustraliaHQ recorded Nov 6, 2026501-1,000873 contacts →

Exact match

“Robert Bird Group (RBG), member of the Surbana Jurong Group, is a specialist structural, civil and construction engineering consultancy with over 800 employees across 12 offices…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchRaleigh, NC, United StatesHQ recorded Nov 6, 2026501-1,000857 contacts →

Exact match

“Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchPortland, NV, United StatesHQ recorded Nov 6, 2026201-500843 contacts →

Exact match

“PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSt. Louis, United StatesHQ recorded Nov 6, 20261,001-5,000829 contacts →

Exact match

“Introba is one of the world’s largest building engineering and consulting firms with more than employees in offices across the United States, Canada, the United Kingdom, Serbia…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNeptune, NJ, United StatesHQ recorded Nov 6, 2026501-1,000778 contacts →

Exact match

“Founded in 1980, DLB Associates is an MEP and technology consulting firm specializing in data centers and mission‑critical facilities, delivering creative, optimized engineering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGuelph, CanadaHQ recorded Nov 6, 2026501-1,000749 contacts →

Exact match

“We are a leading global climate and performance engineering consulting firm dedicated to creating harmony between the built and natural world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 22,475 leed consultants worldwide

See the full list, filter by size, metro and specialty, and access 98,633 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Leed consultants worldwide at a glance

As of Nov 6, 2026
36.0%Verified-email coverage
12.2Average contacts per company
1-10Median size (employees)
1.0%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
13,892
11-50
6,441
51-200
1,506
201-500
259
501-1,000
80
1,001-5,000
47
5,001-10,000
7
10001+
8

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 consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “leed 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 98,633 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.

Leed consultants by location

123 lists · largest first

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

How many leed consultants are there worldwide?

RevenueBase identified 22,475 company matches for leed 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?

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

Which country has the most leed consultants?

The United States leads with 4,821 companies, followed by France (1,251) and Germany (1,142). Every leed consultants list by country and city is linked on this page.

Which city has the most leed consultants?

London leads with 224 company records, followed by New York (207) and Sao Paulo (191).

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 98,633 professional contacts with verified work emails tracked across these 22,475 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.