Company lists · Data refreshed September 2026

Top 25 Commercial energy management consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 16,544 companies tracked

RevenueBase identified 16,544 commercial energy management consultants worldwide as of September 2026 and tracks 166,392 professional contacts across them, including 50,674 with verified work emails. The United States is the largest market and London the largest hub.

This list covers commercial energy management consultants worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026. Country and city lists for commercial energy management consultants follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

16,544Companies

166,392Contacts tracked

50,674Verified emails

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The 25 largest commercial energy management consultants worldwide

Ranked by team size

Top 25 of 16,544 commercial energy management consultants worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to commercial energy management consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	British GAS	Indirect evidence	Windsor, United KingdomHQ checked Sep 21, 2026	10001+	9,238 contacts →
	Indirect evidence “Taking care of things.” Source: RevenueBase Database · checked Sep 21, 2026
2	Enova By Veolia	Partial evidence	Dubai, United Arab EmiratesHQ checked Sep 21, 2026	5,001-10,000	4,058 contacts →
	Partial evidence “Enova is the regional leader in integrated energy and multi-technical services, delivering comprehensive services to its clients.” Source: RevenueBase Database · checked Sep 21, 2026
3	Shell Energy	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	2,627 contacts →
	Partial evidence “We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.” Source: RevenueBase Database · checked Sep 21, 2026
4	Clearesult	Partial evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,121 contacts →
	Partial evidence “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Source: RevenueBase Database · checked Sep 21, 2026
5	Engie Services Nederland NV	Indirect evidence	Bunnik, NetherlandsHQ checked Sep 21, 2026	5,001-10,000	2,021 contacts →
	Indirect evidence “EQUANS is de nieuwe naam van ENGIE Services in Nederland.” Source: RevenueBase Database · checked Sep 21, 2026
6	Ameresco	Partial evidence	Framingham, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,383 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
7	OLA	Partial evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	n/a	1,145 contacts →
	Partial evidence “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Source: RevenueBase Database · checked Sep 21, 2026
8	Techem Energy Services Gmbh	Partial evidence	Eschborn, GermanyHQ checked Sep 21, 2026	1,001-5,000	1,021 contacts →
	Partial evidence “Techem is a leading global energy service provider for the real estate sector and private homeowners.” Source: RevenueBase Database · checked Sep 21, 2026
9	Willdan	Indirect evidence	Anaheim, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	851 contacts →
	Indirect evidence “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Source: RevenueBase Database · checked Sep 21, 2026
10	Linc Facility Services	Partial evidence	United StatesHQ checked Sep 21, 2026	1,001-5,000	712 contacts →
	Partial evidence “The Linc Group is an award-winning provider of integrated facilities management, HVAC and building systems services, lighting and electrical solutions, and other support services…” Source: RevenueBase Database · checked Sep 21, 2026
11	Albireo Energy	Partial evidence	Edison, NJ, United StatesHQ checked Sep 21, 2026	1,001-5,000	669 contacts →
	Partial evidence “Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Source: RevenueBase Database · checked Sep 21, 2026
12	Enegan	Indirect evidence	Vinci, ItalyHQ checked Sep 21, 2026	201-500	655 contacts →
	Indirect evidence “Enegan offre soluzioni personalizzate per le aziende abbinando alla fornitura di elettricità, gas e telecomunicazioni una vasta gamma di prodotti e servizi ad alto valore…” Source: RevenueBase Database · checked Sep 21, 2026
13	General Energy Management Systems P. LTD	Strong evidence	New Delhi, IndiaHQ checked Sep 21, 2026	501-1,000	540 contacts →
	Strong evidence “General Energy Management Systems Pvt.” Source: RevenueBase Database · checked Sep 21, 2026
14	XODUS	Strong evidence	Aberdeen, United KingdomHQ checked Sep 21, 2026	201-500	520 contacts →
	Strong evidence “As a global energy consultancy, we unite our unique and diverse people to share knowledge, innovate and inspire change within the energy industry.” Source: RevenueBase Database · checked Sep 21, 2026
15	Northern GAS And Power	Partial evidence	Gateshead, United KingdomHQ checked Sep 21, 2026	501-1,000	509 contacts →
	Partial evidence “As leaders in our field, we’re trusted by over businesses to provide a full energy service.” Source: RevenueBase Database · checked Sep 21, 2026
16	ACES	Strong evidence	Carmel, IN, United StatesHQ checked Sep 21, 2026	201-500	478 contacts →
	Strong evidence “ACES is a nationwide energy management company that helps its clients buy, sell, and manage the complexity of the U.S.” Source: RevenueBase Database · checked Sep 21, 2026
17	Korra Energi	Partial evidence	Cairo, EgyptHQ checked Sep 21, 2026	1,001-5,000	469 contacts →
	Partial evidence “Korra Energi is a proud Egyptian leader in energy efficiency and construction services, backed by over 25 years of expertise and a vision of "Growth and Prosperity"(إعمار الأرض).” Source: RevenueBase Database · checked Sep 21, 2026
18	Calpine Energy Solutions, LLC	Strong evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	201-500	467 contacts →
	Strong evidence “Calpine Solutions is a retail energy provider with a robust suite of customized products, analytics, and data management solutions to turn a corporate electricity expense into a…” Source: RevenueBase Database · checked Sep 21, 2026
19	Veolia Industries Global Solutions	Partial evidence	Aubervilliers, FranceHQ checked Sep 21, 2026	1,001-5,000	460 contacts →
	Partial evidence “Veolia Industries Global Solutions est devenu Veolia Energie Performance depuis le 1er juin 2025.” Source: RevenueBase Database · checked Sep 21, 2026
20	Fudura	Partial evidence	Utrecht, NetherlandsHQ checked Sep 21, 2026	201-500	417 contacts →
	Partial evidence “Klanten kiezen Fudura als dé ondernemende en duurzame partner in continue energievoorziening, nu en in de toekomst Fudura biedt haar klanten het beste totaalproduct in de…” Source: RevenueBase Database · checked Sep 21, 2026
21	International Energy Services Limited	Partial evidence	Lagos, NigeriaHQ checked Sep 21, 2026	201-500	389 contacts →
	Partial evidence “International Energy Services Limited (IESL) – Key Company Information IESL was registered in Nigeria in 1990 as an indigenous energy services company.” Source: RevenueBase Database · checked Sep 21, 2026
22	TRIO	Partial evidence	Irvine, CA, United StatesHQ checked Sep 21, 2026	201-500	383 contacts →
	Partial evidence “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Source: RevenueBase Database · checked Sep 21, 2026
23	P2s	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 21, 2026	201-500	375 contacts →
	Indirect evidence “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Source: RevenueBase Database · checked Sep 21, 2026
24	Budderfly	Strong evidence	Shelton, CT, United StatesHQ checked Sep 21, 2026	201-500	366 contacts →
	Strong evidence “Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.” Source: RevenueBase Database · checked Sep 21, 2026
25	MCW Group Of Companies	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	201-500	363 contacts →
	Strong evidence “Since 1964 the MCW Group has built a solid reputation for the delivery of Professional Consulting Engineering Services, Energy Management Services, and Engineering Development…” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: commercial energy management consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names commercial energy management consultants.
Partial evidence: Its own public description names part of commercial energy management consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial energy management consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 16,544 commercial energy management consultants worldwide

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Commercial energy management consultants worldwide at a glance

As of Sep 21, 2026

30.5%Verified-email coverage

10.1Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

10,416

11-50

4,608

51-200

1,112

201-500

193

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among commercial energy management consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for commercial energy management consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “commercial energy management consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names commercial energy management consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among commercial energy management consultants, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 50,674 across the full list. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Commercial energy management consultants by location

63 lists · largest first

Every Commercial energy management 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names commercial energy management consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many commercial energy management consultants are there worldwide?

RevenueBase identified 16,544 commercial energy management consultants worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

British GAS, headquartered in Windsor, tops this list with the largest team on record.

Which country has the most commercial energy management consultants?

The United States leads with 2,898 companies, followed by the United Kingdom (1,317) and France (1,100). Every commercial energy management consultants list by country and city is linked on this page.

Which city has the most commercial energy management consultants?

London leads with 209 headquartered companies, followed by Madrid (185) and Paris (173).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 50,674 verified decision-maker contacts tracked across these 16,544 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 Smart Search, 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.