Company lists · Data refreshed October 2026

Top 25 Commercial energy efficiency startups worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 7,126 companies tracked

RevenueBase identified 7,126 company matches for commercial energy efficiency startups worldwide as of October 2026 and tracks 148,361 professional contacts across them, including 37,429 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for commercial energy efficiency startups 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 10, 2026. Country and city lists for commercial energy efficiency startups 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 10, 2026 How this list was built

7,126Companies

148,361Contacts tracked

37,429Verified emails

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The 25 largest commercial energy efficiency startups worldwide

Ranked by team size

Top 25 of 7,126 company matches for commercial energy efficiency startups worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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 10, 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 10, 2026 · View company records in RevenueBase
2	British GAS	Exact match	Windsor, United KingdomHQ recorded Oct 10, 2026	10001+	9,535 contacts →
	Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
4	ISTA	Exact match	Essen, GermanyHQ recorded Oct 10, 2026	5,001-10,000	1,503 contacts →
	Exact match “Wir geben Häusern eine Zukunft.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Danfoss Climate Solutions	Exact match	Nordborg, DenmarkHQ recorded Oct 10, 2026	10001+	1,227 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 · Oct 10, 2026 · View company records in RevenueBase
6	Aden Group	Exact match	SingaporeHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
7	Climatec, LLC	Exact match	Phoenix, AZ, United StatesHQ recorded Oct 10, 2026	1,001-5,000	666 contacts →
	Exact match “Climatec has been making buildings safer, more comfortable and efficient for over 40 years.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Albireo Energy	Exact match	Edison, NJ, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
9	Rovisys Building Technologies	Exact match	Aurora, OH, United StatesHQ recorded Oct 10, 2026	1,001-5,000	646 contacts →
	Exact match “As part of the RoviSys family of companies, we deliver vendor independent building automation, electrical power management, facility monitoring, and systems integration solutions…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	Palmetto	Exact match	Charlotte, NC, United StatesHQ recorded Oct 10, 2026	201-500	606 contacts →
	Exact match “Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	Nordomatic	Exact match	Stockholm, SwedenHQ recorded Oct 10, 2026	1,001-5,000	572 contacts →
	Exact match “Nordomatic is a global impact pioneer in smart buildings, helping you optimize, simplify, and future-proof your operations.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	Kieback&peter	Exact match	Berlin, GermanyHQ recorded Oct 10, 2026	1,001-5,000	560 contacts →
	Exact match “Our DNA are sustainable buildings As a Smart Building Solutioneer, we combine intelligent building technologies, data-based services, sustainable excellence and multiple synergy…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Airmaster	Exact match	Scoresby, AustraliaHQ recorded Oct 10, 2026	1,001-5,000	507 contacts →
	Exact match “At Airmaster, our goal is to lead the way in integrated building services, combining HVAC & R, building automation, electrical, and fire systems to create smart buildings that are…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	NIKO	Exact match	Sint Niklaas, BelgiumHQ recorded Oct 10, 2026	501-1,000	477 contacts →
	Exact match “Niko designs electr(on)ic solutions to enhance buildings to better suit the needs of the people who live and work in them.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	Korra Energi	Exact match	Cairo, EgyptHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
16	Distech Controls	Exact match	Brossard (canada) - Lyon (france), CanadaHQ recorded Oct 10, 2026	201-500	449 contacts →
	Exact match “Distech Controls connects people with intelligent building solutions through our forward-thinking technologies and services.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	Elmeasure	Exact match	Bangalore, IndiaHQ recorded Oct 10, 2026	501-1,000	442 contacts →
	Exact match “Founded in 2004 by a passionate team of entrepreneurs with deep expertise in energy management, Elmeasure began with a bold mission: to help industries, businesses, and…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Veolia Industries Global Solutions	Exact match	Aubervilliers, FranceHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
19	Fuse Energy	Exact match	London, TX, United KingdomHQ recorded Oct 10, 2026	501-1,000	412 contacts →
	Exact match “We are building a full stack energy company to lower cost of energy & accelerate energy abundance.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	Budderfly	Exact match	Shelton, CT, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
21	ترشيد Tarshid	Exact match	Riyadh, Saudi ArabiaHQ recorded Oct 10, 2026	201-500	355 contacts →
	Exact match “The National Energy Services Company (TARSHID) is a national company wholly owned by the Public Investment Fund (PIF).” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Havtech	Exact match	Columbia, MD, United StatesHQ recorded Oct 10, 2026	201-500	342 contacts →
	Exact match “Havtech delivers innovative commercial and industrial HVAC solutions across Maryland, Washington, D.C, Virginia, Pennsylvania, and West Virginia.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	Sunbelt Controls	Exact match	Pleasanton, CA, United StatesHQ recorded Oct 10, 2026	201-500	338 contacts →
	Exact match “Sunbelt Controls is a leading full-service building automation contractor for new construction and retrofit projects in the Western United States.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	Entes Elektronik	Exact match	Istanbul, TürkiyeHQ recorded Oct 10, 2026	201-500	334 contacts →
	Exact match “A World Brand/Pride of Turkey In Energy Quality ENTES is a family that works ardently for energy quality and efficiency in our country, where energy is valuable and overcosting.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	Boland	Exact match	Gaithersburg, MD, United StatesHQ recorded Oct 10, 2026	201-500	329 contacts →
	Exact match “Boland is the leading commercial HVAC systems, services, and building energy solutions provider in the DC metro area.” Recorded in the RevenueBase company graph · Oct 10, 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 efficiency startups”. 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 7,126 commercial energy efficiency startups worldwide

See the full list, filter by size, metro and specialty, and access 37,429 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial energy efficiency startups worldwide at a glance

As of Oct 10, 2026

25.2%Verified-email coverage

20.8Average contacts per company

1-10Median size (employees)

1.0%Largest-city concentration · London

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

3,710

11-50

2,464

51-200

683

201-500

133

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 commercial energy efficiency startups are linked below.
What qualifies: Company records worldwide whose business descriptions match “commercial energy efficiency startups” 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 37,429 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 10, 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 efficiency startups by location

42 lists · largest first

Every Commercial energy efficiency startups 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 efficiency startups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial energy efficiency startups are there worldwide?

RevenueBase identified 7,126 company matches for commercial energy efficiency startups 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 commercial energy efficiency startups?

The United States leads with 1,338 companies, followed by the United Kingdom (387) and France (365). Every commercial energy efficiency startups list by country and city is linked on this page.

Which city has the most commercial energy efficiency startups?

London leads with 71 company records, followed by Madrid (61) and Dubai (57).

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 37,429 professional contacts with verified work emails tracked across these 7,126 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 10, 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.