Company lists · Data refreshed September 2026

Top 25 Commercial energy consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 26,506 companies tracked

RevenueBase identified 26,506 company matches for commercial energy consulting firms worldwide as of September 2026 and tracks 441,074 professional contacts across them, including 134,660 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for commercial energy 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 27, 2026. Country and city lists for commercial energy 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 27, 2026 How this list was built

26,506Companies

441,074Contacts tracked

134,660Verified emails

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The 25 largest commercial energy consulting firms worldwide

Ranked by team size

Top 25 of 26,506 company matches for commercial energy consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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	Johnson Controls	Exact match	Cork, IrelandHQ recorded Sep 27, 2026	10001+	52,736 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 · Sep 27, 2026 · View company records in RevenueBase
2	Worley	Exact match	Sydney, AustraliaHQ recorded Sep 27, 2026	10001+	34,763 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 · Sep 27, 2026 · View company records in RevenueBase
3	WOOD	Exact match	Aberdeen, United KingdomHQ recorded Sep 27, 2026	10001+	26,949 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 · Sep 27, 2026 · View company records in RevenueBase
4	British GAS	Exact match	Windsor, United KingdomHQ recorded Sep 27, 2026	10001+	9,238 contacts →
	Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	ERM	Exact match	London, United KingdomHQ recorded Sep 27, 2026	5,001-10,000	9,119 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Dalkia	Exact match	Saint-andré-lez-lille, FranceHQ recorded Sep 27, 2026	10001+	8,427 contacts →
	Exact match “Dalkia : ensemble, relevons le défi climatique!” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	Equans Belux	Exact match	Brussels, BelgiumHQ recorded Sep 27, 2026	5,001-10,000	5,297 contacts →
	Exact match “What if you could use your talent to contribute to the great challenges of tomorrow?” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Enova By Veolia	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 27, 2026	5,001-10,000	4,058 contacts →
	Exact match “Enova is the regional leader in integrated energy and multi-technical services, delivering comprehensive services to its clients.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	KENTZ	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 27, 2026	10001+	3,987 contacts →
	Exact match “Following the acquisition of SNC-Lavalin's oil and gas division, Kentz has become a part of Kent.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Ortec Group	Exact match	Aix-en-provence, FranceHQ recorded Sep 27, 2026	10001+	3,436 contacts →
	Exact match “En conjuguant depuis sa création audace et rigueur, le groupe Ortec est devenu aujourd’hui un des leaders des services à l’industrie, l’énergie et l’environnement.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	FTI	Exact match	Menasha, WI, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,741 contacts →
	Exact match “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Shell Energy	Exact match	London, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	2,627 contacts →
	Exact match “We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Southland Industries	Exact match	Garden Grove, CA, United StatesHQ recorded Sep 27, 2026	10001+	2,439 contacts →
	Exact match “As one of the nation's largest building systems experts, Southland Industries provides innovative, practical results for your engineering, construction, service, and energy needs.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Mckinstry	Exact match	Seattle, WA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
15	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
16	Engie Services Nederland NV	Exact match	Bunnik, NetherlandsHQ recorded Sep 27, 2026	5,001-10,000	2,021 contacts →
	Exact match “EQUANS is de nieuwe naam van ENGIE Services in Nederland.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Vulcain Engineering Group	Exact match	Neuilly-sur-seine, FranceHQ recorded Sep 27, 2026	5,001-10,000	1,496 contacts →
	Exact match “Vulcain Engineering Group is a multi-specialist engineering and consulting group serving industrial companies across the globe, focused on critical sectors: energy, health…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Ameresco	Exact match	Framingham, MA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,383 contacts →
	Exact match “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	GK	Exact match	Oslo, NorwayHQ recorded Sep 27, 2026	1,001-5,000	1,150 contacts →
	Exact match “GK er en ledende teknisk entreprenør og servicepartner.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	OLA	Exact match	Austin, TX, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
21	Aden Group	Exact match	SingaporeHQ recorded Sep 27, 2026	10001+	1,105 contacts →
	Exact match “Aden Group is a Euro-Asian enterprise delivering comprehensive solutions to boost decarbonization, productivity and energy transition in the built environment.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Hoare LEA	Exact match	London, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
23	BTP Consultants	Exact match	Montigny-le-bretonneux, FranceHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
24	Dalkia UK	Exact match	London, United KingdomHQ recorded Sep 27, 2026	5,001-10,000	1,064 contacts →
	Exact match “Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Granlund	Exact match	Helsinki, FinlandHQ recorded Sep 27, 2026	1,001-5,000	1,027 contacts →
	Exact match “Granlund on voimakkaasti kasvava kiinteistö- ja rakennusalan asiantuntijayhtiö.” Recorded in the RevenueBase company graph · Sep 27, 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 “commercial energy 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 26,506 commercial energy consulting firms worldwide

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Commercial energy consulting firms worldwide at a glance

As of Sep 27, 2026

30.5%Verified-email coverage

16.6Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

16,315

11-50

7,656

51-200

1,805

201-500

341

501-1,000

103

1,001-5,000

102

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 commercial energy consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “commercial energy 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 134,660 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 27, 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.

Commercial energy consulting firms by location

105 lists · largest first

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

How many commercial energy consulting firms are there worldwide?

RevenueBase identified 26,506 company matches for commercial energy 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?

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

Which country has the most commercial energy consulting firms?

The United States leads with 4,015 companies, followed by France (1,934) and the United Kingdom (1,689). Every commercial energy consulting firms list by country and city is linked on this page.

Which city has the most commercial energy consulting firms?

London leads with 307 company records, followed by Madrid (267) and Paris (248).

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 134,660 professional contacts with verified work emails tracked across these 26,506 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 27, 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.