Company lists · Data refreshed October 2026

Top 25 Home energy solution companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 14, 2026 16,492 companies tracked

RevenueBase identified 16,492 company matches for home energy solution companies worldwide as of October 2026 and tracks 183,228 professional contacts across them, including 46,313 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers company matches for home energy solution 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 14, 2026. Country and city lists for home energy solution 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 14, 2026 How this list was built

16,492Companies

183,228Contacts tracked

46,313Verified emails

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The 25 largest home energy solution companies worldwide

Ranked by team size

Top 25 of 16,492 company matches for home energy solution companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 14, 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	British GAS	Exact match	Windsor, United KingdomHQ recorded Oct 14, 2026	10001+	9,535 contacts →
	Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
2	Sunrun	Exact match	San Francisco, CA, United StatesHQ recorded Oct 14, 2026	10001+	7,991 contacts →
	Exact match “Life runs on clean energy.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
3	NRG Energy	Exact match	Houston, TX, United StatesHQ recorded Oct 14, 2026	10001+	7,034 contacts →
	Exact match “NRG Energy, Inc.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
4	Centrica	Exact match	Windsor, United KingdomHQ recorded Oct 14, 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 14, 2026 · View company records in RevenueBase
5	Generac	Exact match	Waukesha, WI, United StatesHQ recorded Oct 14, 2026	5,001-10,000	3,918 contacts →
	Exact match “Generac is the total energy solutions company powering a smarter world.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
6	Ambit Energy	Exact match	Irving, TX, United StatesHQ recorded Oct 14, 2026	n/a	3,906 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
7	Solarsquare	Exact match	Mumbai, IndiaHQ recorded Oct 14, 2026	1,001-5,000	2,156 contacts →
	Exact match “At SolarSquare, we make going solar simple, reliable, and worry-free.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
8	Sunpower Corporation	Exact match	Richmond, CA, United StatesHQ recorded Oct 14, 2026	1,001-5,000	2,009 contacts →
	Exact match “We believe clean energy and backup storage should be accessible to everybody.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
9	Just Energy	Exact match	Houston, TX, United StatesHQ recorded Oct 14, 2026	1,001-5,000	1,714 contacts →
	Exact match “Established in 1997, Just Energy has been a leading retail energy provider serving markets across the United States and Canada.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
10	Reliance Home Comfort	Exact match	Toronto, ON, CanadaHQ recorded Oct 14, 2026	1,001-5,000	1,602 contacts →
	Exact match “As a leader in home services and energy efficient solutions for over 60 years, Reliance Home Comfort® (Reliance) is committed to being the Destination of Choice by delivering…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
11	IGS Energy	Exact match	Dublin, OH, United StatesHQ recorded Oct 14, 2026	1,001-5,000	1,435 contacts →
	Exact match “IGS Energy has been a trusted energy advisor since 1989, growing into one of the nation’s top energy retailers.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
12	Blue Raven Solar	Exact match	Orem, UT, United StatesHQ recorded Oct 14, 2026	1,001-5,000	1,075 contacts →
	Exact match “Blue Raven Solar, a SunPower Company, is a retailer of residential home solar systems.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
13	ION Solar	Exact match	Provo, UT, United StatesHQ recorded Oct 14, 2026	501-1,000	913 contacts →
	Exact match “Ion Solar is a premium, full-service solar provider.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
14	Lgcy Power	Exact match	Lehi, UT, United StatesHQ recorded Oct 14, 2026	1,001-5,000	912 contacts →
	Exact match “LGCY Power is committed to changing the way the world produces power.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
15	BAXI	Exact match	Warwick, United KingdomHQ recorded Oct 14, 2026	1,001-5,000	884 contacts →
	Exact match “We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
16	Feenstra	Exact match	Lelystad, NetherlandsHQ recorded Oct 14, 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 14, 2026 · View company records in RevenueBase
17	Sunnova Energy	Exact match	Houston, TX, United StatesHQ recorded Oct 14, 2026	501-1,000	770 contacts →
	Exact match “Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
18	Powersecure, INC	Exact match	Durham, NC, United StatesHQ recorded Oct 14, 2026	501-1,000	761 contacts →
	Exact match “PowerSecure, a Southern Company subsidiary, is a leading provider of innovative energy solutions to electric utilities and their industrial, institutional, and commercial…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
19	LUMIO	Exact match	Lehi, UT, United StatesHQ recorded Oct 14, 2026	5,001-10,000	659 contacts →
	Exact match “We’re on a mission to make power personal.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
20	Fenice Energy	Exact match	Chennai, IndiaHQ recorded Oct 14, 2026	201-500	635 contacts →
	Exact match “Fenice Energy provides high-quality end-to-end clean energy solutions for homes including solar, backup, and eV charging.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
21	Sorgenia	Exact match	Milan, ItalyHQ recorded Oct 14, 2026	201-500	613 contacts →
	Exact match “Da dicembre 2025, abbiamo integrato EF Solare, il primo produttore fotovoltaico italiano.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
22	Enegan	Exact match	Vinci, ItalyHQ recorded Oct 14, 2026	201-500	611 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
23	Palmetto	Exact match	Charlotte, NC, United StatesHQ recorded Oct 14, 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 14, 2026 · View company records in RevenueBase
24	Ecoflow	Exact match	Seattle, WA, United StatesHQ recorded Oct 14, 2026	1,001-5,000	536 contacts →
	Exact match “EcoFlow is a leading eco-friendly energy solutions company with the vision to power a new world.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
25	Serentica	Exact match	Gurgaon, IndiaHQ recorded Oct 14, 2026	201-500	526 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 · Oct 14, 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 “home energy solution 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 16,492 home energy solution companies worldwide

See the full list, filter by size, metro and specialty, and access 46,313 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Home energy solution companies worldwide at a glance

As of Oct 14, 2026

25.3%Verified-email coverage

11.1Average contacts per company

1-10Median size (employees)

0.6%Largest-city concentration · Madrid

Oct 14, 2026Page data refreshed

Companies by employee count

1-10

8,623

11-50

5,861

51-200

1,457

201-500

295

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 home energy solution companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “home energy solution 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 46,313 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 14, 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.

Home energy solution companies by location

63 lists · largest first

Every Home energy solution 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 “home energy solution companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many home energy solution companies are there worldwide?

RevenueBase identified 16,492 company matches for home energy solution 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?

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

Which country has the most home energy solution companies?

The United States leads with 3,417 companies, followed by Brazil (1,061) and the United Kingdom (972). Every home energy solution companies list by country and city is linked on this page.

Which city has the most home energy solution companies?

Madrid leads with 107 company records, followed by London (98) and Lahore (78).

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 46,313 professional contacts with verified work emails tracked across these 16,492 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 14, 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.