Company lists · Data refreshed October 2026

Top 25 Energy efficient infrastructure consultants worldwide

Name: Energy efficient infrastructure consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 29,493 companies tracked

RevenueBase identified 29,493 company matches for energy efficient infrastructure consultants worldwide as of October 2026 and tracks 1,237,127 professional contacts across them, including 427,556 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for energy efficient infrastructure 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 October 12, 2026. Country and city lists for energy efficient infrastructure 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 Oct 12, 2026 How this list was built

29,493Companies

1,237,127Contacts tracked

427,556Verified emails

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The 25 largest energy efficient infrastructure consultants worldwide

Ranked by team size

Top 25 of 29,493 company matches for energy efficient infrastructure consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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 Oct 12, 2026	10001+	65,956 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Johnson Controls	Exact match	Cork, IrelandHQ recorded Oct 12, 2026	10001+	54,046 contacts →
	Exact match “Johnson Controls is a global leader in thermal management, mission-critical building systems, energy efficiency and decarbonization.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Jacobs	Exact match	Dallas, TX, United StatesHQ recorded Oct 12, 2026	10001+	48,845 contacts →
	Exact match “At Jacobs, we're challenging today to reinvent tomorrow – delivering outcomes and solutions for the world's most complex challenges.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Arcadis	Exact match	Amsterdam, United KingdomHQ recorded Oct 12, 2026	10001+	35,503 contacts →
	Exact match “Arcadis is a leading global partner, delivering transformative projects with businesses, cities and industries.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Worley	Exact match	Sydney, AustraliaHQ recorded Oct 12, 2026	10001+	35,018 contacts →
	Exact match “Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Stantec	Exact match	Edmonton, AB, CanadaHQ recorded Oct 12, 2026	10001+	29,839 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 · Oct 12, 2026 · View company records in RevenueBase
7	Atkinsréalis	Exact match	Montreal, QC, CanadaHQ recorded Oct 12, 2026	10001+	24,297 contacts →
	Exact match “We are a world-class engineering services and nuclear organization.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	ARUP	Exact match	London, United KingdomHQ recorded Oct 12, 2026	10001+	22,234 contacts →
	Exact match “We guide, plan and design the future of the built environment.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	SWECO	Exact match	Stockholm, SwedenHQ recorded Oct 12, 2026	10001+	19,246 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 · Oct 12, 2026 · View company records in RevenueBase
10	WOOD	Exact match	Aberdeen, United KingdomHQ recorded Oct 12, 2026	10001+	16,351 contacts →
	Exact match “Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Ramboll	Exact match	Copenhagen, DenmarkHQ recorded Oct 12, 2026	10001+	16,209 contacts →
	Exact match “Ramboll is a global architecture, engineering and consultancy company founded in Denmark in 1945.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	GHD	Exact match	Sydney, AustraliaHQ recorded Oct 12, 2026	10001+	15,044 contacts →
	Exact match “We are committed to addressing the world’s biggest challenges in the areas of water, energy and communities.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Tetra Tech	Exact match	Pasadena, CA, United StatesHQ recorded Oct 12, 2026	10001+	13,725 contacts →
	Exact match “Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	AFRY	Exact match	Stockholm, SwedenHQ recorded Oct 12, 2026	10001+	13,105 contacts →
	Exact match “AFRY is a European leader in engineering, design, and advisory services, with a global reach.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	EGIS	Exact match	Saint-quentin-en-yvelines, FranceHQ recorded Oct 12, 2026	10001+	12,506 contacts →
	Exact match “Egis is a leading global architectural, consulting, construction engineering, operations and mobility services firm.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Engie Solutions France	Exact match	La Garenne-colombes, FranceHQ recorded Oct 12, 2026	10001+	11,566 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 · Oct 12, 2026 · View company records in RevenueBase
17	Black & Veatch	Exact match	Overland Park, KS, United StatesHQ recorded Oct 12, 2026	10001+	11,438 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	DAR	Exact match	Beirut, LebanonHQ recorded Oct 12, 2026	10001+	11,261 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 · Oct 12, 2026 · View company records in RevenueBase
19	Carrier Hvac	Exact match	United StatesHQ recorded Oct 12, 2026	10001+	10,247 contacts →
	Exact match “Carrier is a global leader in intelligent climate and energy solutions, pioneering sustainable innovations in climate technologies.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	10001+	10,184 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 · Oct 12, 2026 · View company records in RevenueBase
21	Snc-Lavalin	Exact match	Montreal, QC, CanadaHQ recorded Oct 12, 2026	10001+	9,694 contacts →
	Exact match “SNC Lavalin is now AtkinsRéalis.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	ERM	Exact match	London, United KingdomHQ recorded Oct 12, 2026	5,001-10,000	9,532 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Atkins	Exact match	Epsom, United KingdomHQ recorded Oct 12, 2026	10001+	9,147 contacts →
	Exact match “Atkins is now AtkinsRéalis.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Dalkia	Exact match	Saint-andré-lez-lille, FranceHQ recorded Oct 12, 2026	10001+	8,823 contacts →
	Exact match “Dalkia : ensemble, relevons le défi climatique!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Aurecon	Exact match	Docklands, AustraliaHQ recorded Oct 12, 2026	5,001-10,000	8,478 contacts →
	Exact match “Aurecon is an Asia Pacific engineering consultancy that believes the world needs people who can engineer possibilities.” Recorded in the RevenueBase company graph · Oct 12, 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 “energy efficient infrastructure 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 29,493 energy efficient infrastructure consultants worldwide

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Energy efficient infrastructure consultants worldwide at a glance

As of Oct 12, 2026

34.6%Verified-email coverage

41.9Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · London

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

17,368

11-50

8,438

51-200

2,339

201-500

602

501-1,000

215

1,001-5,000

272

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 energy efficient infrastructure consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “energy efficient infrastructure 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 427,556 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 October 12, 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.

Energy efficient infrastructure consultants by location

157 lists · largest first

Every Energy efficient infrastructure 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 “energy efficient infrastructure consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficient infrastructure consultants are there worldwide?

RevenueBase identified 29,493 company matches for energy efficient infrastructure consultants worldwide as of October 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 energy efficient infrastructure consultants?

The United States leads with 4,030 companies, followed by France (1,921) and Germany (1,730). Every energy efficient infrastructure consultants list by country and city is linked on this page.

Which city has the most energy efficient infrastructure consultants?

London leads with 418 company records, followed by Paris (308) and Madrid (268).

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 427,556 professional contacts with verified work emails tracked across these 29,493 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 October 12, 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.