Company lists · Data refreshed September 2026

Top 25 Residential energy management companies worldwide

RevenueBase identified 9,403 residential energy management companies worldwide as of September 2026 and tracks 173,156 professional contacts across them, including 50,780 with verified work emails. The United States is the largest market and London the largest hub.

This list covers residential energy management companies 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 residential energy management companies 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
9,403Companies
173,156Contacts tracked
50,780Verified emails
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The 25 largest residential energy management companies worldwide

Ranked by team size
Top 25 of 9,403 residential energy management companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to residential energy management companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDublin, GermanyHQ checked Sep 21, 202610001+44,100 contacts →

Partial evidence

“Eaton is an intelligent power management company dedicated to improving the quality of life and protecting the environment for people everywhere.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceWindsor, United KingdomHQ checked Sep 21, 202610001+9,238 contacts →

Indirect evidence

“Taking care of things.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceWindsor, United KingdomHQ checked Sep 21, 202610001+4,555 contacts →

Partial evidence

“Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceIrving, TX, United StatesHQ checked Sep 21, 2026n/a4,150 contacts →

Partial evidence

“Ambit Energy provides electricity, natural gas and solar services in numerous markets across the United States, primarily marketed through a direct sales channel of more than…”

Source: RevenueBase Database · checked Sep 21, 2026
5Partial evidenceWaukesha, WI, United StatesHQ checked Sep 21, 20265,001-10,0003,797 contacts →

Partial evidence

“Generac is the total energy solutions company powering a smarter world.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceMumbai, IndiaHQ checked Sep 21, 20261,001-5,0001,812 contacts →

Indirect evidence

“At SolarSquare, we make going solar simple, reliable, and worry-free.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceMilwaukee, WI, United StatesHQ checked Sep 21, 20265,001-10,0001,709 contacts →

Partial evidence

“Rehlko is a global leader in energy resilience, delivering the solutions critical to sustain and improve life.”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 20261,001-5,0001,645 contacts →

Partial evidence

“Established in 1997, Just Energy has been a leading retail energy provider serving markets across the United States and Canada.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceDublin, OH, United StatesHQ checked Sep 21, 20261,001-5,0001,388 contacts →

Partial evidence

“IGS Energy has been a trusted energy advisor since 1989, growing into one of the nation’s top energy retailers.”

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceOrem, UT, United StatesHQ checked Sep 21, 20261,001-5,0001,168 contacts →

Partial evidence

“Blue Raven Solar, a SunPower Company, is a retailer of residential home solar systems.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceEschborn, GermanyHQ checked Sep 21, 20261,001-5,0001,021 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
12Partial evidenceLevallois-perret, FranceHQ checked Sep 21, 20261,001-5,000935 contacts →

Partial evidence

“A major player in the energy transition and leader in home services, PROXISERVE provides its customers with innovative solutions enabling them to reduce their energy consumption…”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 2026501-1,000906 contacts →

Partial evidence

“Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceDurham, NC, United StatesHQ checked Sep 21, 2026501-1,000740 contacts →

Partial evidence

“PowerSecure, a Southern Company subsidiary, is a leading provider of innovative energy solutions to electric utilities and their industrial, institutional, and commercial…”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceLehi, UT, United StatesHQ checked Sep 21, 20265,001-10,000719 contacts →

Indirect evidence

“We’re on a mission to make power personal.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceIrelandHQ checked Sep 21, 2026501-1,000661 contacts →

Partial evidence

“SSE Airtricity has been harnessing our greatest natural resource for the past 25 years, providing cleaner, renewable energy† for homes and businesses across the country.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceWalton-on-thames, United KingdomHQ checked Sep 21, 2026201-500658 contacts →

Indirect evidence

“We are passionate about driving sustainable change for our planet.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceChennai, IndiaHQ checked Sep 21, 2026201-500614 contacts →

Partial evidence

“Fenice Energy provides high-quality end-to-end clean energy solutions for homes including solar, backup, and eV charging.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceMilan, ItalyHQ checked Sep 21, 2026201-500608 contacts →

Indirect evidence

“Da dicembre 2025, abbiamo integrato EF Solare, il primo produttore fotovoltaico italiano.”

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidenceLondon, United KingdomHQ checked Sep 21, 2026501-1,000595 contacts →

Partial evidence

“Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceToronto, ON, CanadaHQ checked Sep 21, 2026501-1,000558 contacts →

Indirect evidence

“We're on a mission to improve everyday life while creating a more sustainable world.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceCharlotte, NC, United StatesHQ checked Sep 21, 2026201-500539 contacts →

Partial evidence

“Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.”

Source: RevenueBase Database · checked Sep 21, 2026
23Partial evidenceGateshead, United KingdomHQ checked Sep 21, 2026501-1,000509 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
24Strong evidenceSt. Rose, LA, United StatesHQ checked Sep 21, 2026501-1,000507 contacts →

Strong evidence

“PosiGen is the nation's leading residential solar and energy efficiency provider.”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceWestborough, MA, United StatesHQ checked Sep 21, 2026201-500481 contacts →

Partial evidence

“NORESCO, a part of Carrier Global Corporation, helps customers modernize aging building systems and upgrade energy and water infrastructure to meet evolving demands.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 9,403 residential energy management companies worldwide

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Residential energy management companies worldwide at a glance

As of Sep 21, 2026
29.3%Verified-email coverage
18.4Average contacts per company
1-10Median size (employees)
1.0%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
4,972
11-50
3,180
51-200
874
201-500
202
501-1,000
65
1,001-5,000
39
5,001-10,000
10
10001+
10

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 residential energy management companies, 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 residential energy management companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “residential energy management companies”. 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 residential energy management companies), 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 residential energy management companies, 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, 50,780 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.

Residential energy management companies by location

36 lists · largest first

Every Residential energy management 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 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 residential energy management companies, 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 residential energy management companies are there worldwide?

RevenueBase identified 9,403 residential energy management companies 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?

EATON, headquartered in Dublin, tops this list with the largest team on record.

Which country has the most residential energy management companies?

The United States leads with 2,028 companies, followed by the United Kingdom (659) and Brazil (496). Every residential energy management companies list by country and city is linked on this page.

Which city has the most residential energy management companies?

London leads with 92 headquartered companies, followed by Madrid (85) and Houston (77).

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 50,780 verified decision-maker contacts tracked across these 9,403 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.