Company lists · Data refreshed November 2026

Top 25 Industrial energy optimization firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 17,026 companies tracked

RevenueBase identified 17,026 company matches for industrial energy optimization firms worldwide as of November 2026 and tracks 245,010 professional contacts across them, including 64,291 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers company matches for industrial energy optimization 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 November 6, 2026. Country and city lists for industrial energy optimization 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 Nov 6, 2026 How this list was built

17,026Companies

245,010Contacts tracked

64,291Verified emails

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The 25 largest industrial energy optimization firms worldwide

Ranked by team size

Top 25 of 17,026 company matches for industrial energy optimization firms 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Johnson Controls	Exact match	Cork, IrelandHQ recorded Nov 6, 2026	10001+	55,567 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 · Nov 6, 2026 · View company records in RevenueBase
2	British GAS	Exact match	Windsor, United KingdomHQ recorded Nov 6, 2026	10001+	9,964 contacts →
	Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Enova By Veolia	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 6, 2026	5,001-10,000	4,188 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 · Nov 6, 2026 · View company records in RevenueBase
4	FTI	Exact match	Menasha, WI, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,999 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 · Nov 6, 2026 · View company records in RevenueBase
5	Shell Energy	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	2,764 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 · Nov 6, 2026 · View company records in RevenueBase
6	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,264 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 · Nov 6, 2026 · View company records in RevenueBase
7	Ameresco	Exact match	Framingham, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,570 contacts →
	Exact match “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure company delivering integrated solutions to create reliable power and modernize infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Danfoss Climate Solutions	Exact match	Nordborg, DenmarkHQ recorded Nov 6, 2026	10001+	1,279 contacts →
	Exact match “At Danfoss Climate Solutions, we engineer energy-efficient heating and cooling solutions to help the world get more out of less.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Aden Group	Exact match	Vientiane, SingaporeHQ recorded Nov 6, 2026	10001+	1,231 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 · Nov 6, 2026 · View company records in RevenueBase
10	Techem Energy Services Gmbh	Exact match	Eschborn, GermanyHQ recorded Nov 6, 2026	1,001-5,000	1,086 contacts →
	Exact match “Techem is a leading global energy service provider for the real estate sector and private homeowners.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	897 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 · Nov 6, 2026 · View company records in RevenueBase
12	Energy Solutions	Exact match	Oakland, CA, United StatesHQ recorded Nov 6, 2026	201-500	815 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 · Nov 6, 2026 · View company records in RevenueBase
13	Resource Innovations	Exact match	Half Moon Bay, OR, United StatesHQ recorded Nov 6, 2026	501-1,000	793 contacts →
	Exact match “Resource Innovations (RI) is an energy transformation firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Inerco	Exact match	Seville, SpainHQ recorded Nov 6, 2026	1,001-5,000	755 contacts →
	Exact match “INERCO is a multinational technology company specialising in sustainability.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	KBC A Yokogawa Company	Exact match	Walton-on-thames, United KingdomHQ recorded Nov 6, 2026	201-500	698 contacts →
	Exact match “We are passionate about driving sustainable change for our planet.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Albireo Energy	Exact match	Edison, NJ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	672 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 · Nov 6, 2026 · View company records in RevenueBase
17	Kaluza	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	639 contacts →
	Exact match “Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Soenergy International	Exact match	Doral, United StatesHQ recorded Nov 6, 2026	1,001-5,000	630 contacts →
	Exact match “SoEnergy is a global provider of "energy as a service", ensuring customized solutions for a diverse array of organizations and industries worldwide, such as mining, oil & gas…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Harris PYE	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 6, 2026	501-1,000	598 contacts →
	Exact match “At Harris Pye, everything we do saves energy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	3e Engenharia EM Eficiencia Energetica	Exact match	BrazilHQ recorded Nov 6, 2026	201-500	558 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 · Nov 6, 2026 · View company records in RevenueBase
21	Serentica	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	201-500	549 contacts →
	Exact match “Serentica Renewables India Private Limited,(Serentica) is a is an end-to-end energy solutions company enabling large-scale heavy energy intensive industries and sector to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Korra Energi	Exact match	Cairo, EgyptHQ recorded Nov 6, 2026	1,001-5,000	517 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 · Nov 6, 2026 · View company records in RevenueBase
23	ACES	Exact match	Carmel, AZ, United StatesHQ recorded Nov 6, 2026	201-500	507 contacts →
	Exact match “ACES is a nationwide energy management company that helps its clients buy, sell, and manage the complexity of the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	PSI Software	Exact match	Berlin, GermanyHQ recorded Nov 6, 2026	1,001-5,000	471 contacts →
	Exact match “The PSI Group develops software products for optimizing the flow of energy and materials for utilities and industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Calpine Energy Solutions, LLC	Exact match	San Diego, CA, United StatesHQ recorded Nov 6, 2026	201-500	464 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 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 “industrial energy optimization 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 17,026 industrial energy optimization firms worldwide

See the full list, filter by size, metro and specialty, and access 64,291 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial energy optimization firms worldwide at a glance

As of Nov 6, 2026

26.2%Verified-email coverage

14.4Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Madrid

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

10,385

11-50

4,974

51-200

1,140

201-500

213

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 industrial energy optimization firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “industrial energy optimization 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 64,291 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.

Industrial energy optimization firms by location

103 lists · largest first

Every Industrial energy optimization 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 “industrial energy optimization firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial energy optimization firms are there worldwide?

RevenueBase identified 17,026 company matches for industrial energy optimization firms 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?

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

Which country has the most industrial energy optimization firms?

The United States leads with 2,729 companies, followed by France (1,181) and Spain (1,126). Every industrial energy optimization firms list by country and city is linked on this page.

Which city has the most industrial energy optimization firms?

Madrid leads with 203 company records, followed by Paris (178) and London (163).

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 64,291 professional contacts with verified work emails tracked across these 17,026 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.