Company lists · Data refreshed October 2026

Top 25 Building energy service companies worldwide

Name: Building energy service companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 10,767 companies tracked

RevenueBase identified 10,767 company matches for building energy service companies worldwide as of October 2026 and tracks 188,079 professional contacts across them, including 50,203 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers company matches for building energy service companies 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 9, 2026. Country and city lists for building energy service companies 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 9, 2026 How this list was built

10,767Companies

188,079Contacts tracked

50,203Verified emails

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The 25 largest building energy service companies worldwide

Ranked by team size

Top 25 of 10,767 company matches for building energy service companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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 Oct 9, 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 9, 2026 · View company records in RevenueBase
2	British GAS	Exact match	Windsor, United KingdomHQ recorded Oct 9, 2026	10001+	9,535 contacts →
	Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Dalkia	Exact match	Saint-andré-lez-lille, FranceHQ recorded Oct 9, 2026	10001+	8,823 contacts →
	Exact match “Dalkia : ensemble, relevons le défi climatique!” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	Centrica	Exact match	Windsor, United KingdomHQ recorded Oct 9, 2026	10001+	4,831 contacts →
	Exact match “Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Enova By Veolia	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 9, 2026	5,001-10,000	4,030 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 · Oct 9, 2026 · View company records in RevenueBase
6	Shell Energy	Exact match	London, United KingdomHQ recorded Oct 9, 2026	1,001-5,000	2,589 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 · Oct 9, 2026 · View company records in RevenueBase
7	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,206 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 · Oct 9, 2026 · View company records in RevenueBase
8	Ameresco	Exact match	Framingham, MA, United StatesHQ recorded Oct 9, 2026	1,001-5,000	1,513 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 · Oct 9, 2026 · View company records in RevenueBase
9	Aden Group	Exact match	SingaporeHQ recorded Oct 9, 2026	10001+	1,203 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 · Oct 9, 2026 · View company records in RevenueBase
10	GK	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	1,001-5,000	1,134 contacts →
	Exact match “GK er en ledende teknisk entreprenør og servicepartner.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Oct 9, 2026	1,001-5,000	872 contacts →
	Exact match “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Energy Solutions	Exact match	Oakland, CA, United StatesHQ recorded Oct 9, 2026	201-500	792 contacts →
	Exact match “Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Feenstra	Exact match	Lelystad, NetherlandsHQ recorded Oct 9, 2026	1,001-5,000	789 contacts →
	Exact match “Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Albireo Energy	Exact match	Edison, NJ, United StatesHQ recorded Oct 9, 2026	1,001-5,000	658 contacts →
	Exact match “Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	3e Engenharia EM Eficiencia Energetica	Exact match	BrazilHQ recorded Oct 9, 2026	201-500	530 contacts →
	Exact match “A 3E Engenharia atua nacionalmente, oferecendo soluções para empresas concessionárias de serviços públicos, no planejamento, gestão, execução e inovação em projetos de Eficiência…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Northern GAS And Power	Exact match	Gateshead, United KingdomHQ recorded Oct 9, 2026	501-1,000	516 contacts →
	Exact match “As leaders in our field, we’re trusted by over businesses to provide a full energy service.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Sunpower Philippines Manufacturing Limited	Exact match	3rd Street, PhilippinesHQ recorded Oct 9, 2026	201-500	512 contacts →
	Exact match “Go solar, reduce your energy bills and discover why SunPower is a world standard in solar solutions for homes, businesses and utilities.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Noresco	Exact match	Westborough, MA, United StatesHQ recorded Oct 9, 2026	201-500	479 contacts →
	Exact match “NORESCO, an OPTERRA company, helps customers modernize aging building systems and upgrade energy and water infrastructure to meet evolving demands.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Korra Energi	Exact match	Cairo, EgyptHQ recorded Oct 9, 2026	1,001-5,000	476 contacts →
	Exact match “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).” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Getec Italia	Exact match	Gragnano Trebbiense, ItalyHQ recorded Oct 9, 2026	1,001-5,000	461 contacts →
	Exact match “GETEC Italia, piattaforma italiana del Gruppo, è una ESCo specializzata nella fornitura di soluzioni all’avanguardia nel settore dell’efficienza energetica in Italia, con più di…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Veolia Industries Global Solutions	Exact match	Aubervilliers, FranceHQ recorded Oct 9, 2026	1,001-5,000	429 contacts →
	Exact match “Veolia Industries Global Solutions est devenu Veolia Energie Performance depuis le 1er juin 2025.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	BECIS	Exact match	SingaporeHQ recorded Oct 9, 2026	201-500	392 contacts →
	Exact match “BECIS is a leading Energy as a Service (EaaS) provider to high-quality commercial and industrial customers.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	TRIO	Exact match	Irvine, CA, United StatesHQ recorded Oct 9, 2026	201-500	387 contacts →
	Exact match “We are Trio – global energy and sustainability advisors.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Budderfly	Exact match	Shelton, CT, United StatesHQ recorded Oct 9, 2026	201-500	380 contacts →
	Exact match “Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	MCW Group Of Companies	Exact match	Toronto, ON, CanadaHQ recorded Oct 9, 2026	201-500	370 contacts →
	Exact match “Since 1964 the MCW Group has built a solid reputation for the delivery of Professional Consulting Engineering Services, Energy Management Services, and Engineering Development…” Recorded in the RevenueBase company graph · Oct 9, 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 “building energy service companies”. 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 10,767 building energy service companies worldwide

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Building energy service companies worldwide at a glance

As of Oct 9, 2026

26.7%Verified-email coverage

17.5Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Madrid

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

6,409

11-50

3,289

51-200

780

201-500

145

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 building energy service companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “building energy service companies” 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 50,203 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 9, 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.

Building energy service companies by location

48 lists · largest first

Every Building energy service companies 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 “building energy service companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building energy service companies are there worldwide?

RevenueBase identified 10,767 company matches for building energy service companies 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?

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

Which country has the most building energy service companies?

The United States leads with 2,122 companies, followed by France (871) and Italy (747). Every building energy service companies list by country and city is linked on this page.

Which city has the most building energy service companies?

Madrid leads with 125 company records, followed by Paris (121) and London (90).

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 50,203 professional contacts with verified work emails tracked across these 10,767 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 9, 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.