Company lists · Data refreshed November 2026

Top 25 Home energy contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 13,267 companies tracked

RevenueBase identified 13,267 company matches for home energy contractors worldwide as of November 2026 and tracks 125,319 professional contacts across them, including 34,049 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for home energy contractors 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 home energy contractors 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

13,267Companies

125,319Contacts tracked

34,049Verified emails

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The 25 largest home energy contractors worldwide

Ranked by team size

Top 25 of 13,267 company matches for home energy contractors 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	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
2	Dalkia	Exact match	Saint-andré-lez-lille, FranceHQ recorded Nov 6, 2026	10001+	9,075 contacts →
	Exact match “Dalkia : ensemble, relevons le défi climatique!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Reliance Home Comfort	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	1,001-5,000	1,656 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 · Nov 6, 2026 · View company records in RevenueBase
4	Blue Raven Solar	Exact match	Orem, UT, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,120 contacts →
	Exact match “Blue Raven Solar, a SunPower Company, is a retailer of residential home solar systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Proxiserve	Exact match	Levallois-perret, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,054 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	ION Solar	Exact match	Provo, UT, United StatesHQ recorded Nov 6, 2026	501-1,000	945 contacts →
	Exact match “Ion Solar is a premium, full-service solar provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Feenstra	Exact match	Lelystad, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	813 contacts →
	Exact match “Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Sunnova Energy	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	784 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 · Nov 6, 2026 · View company records in RevenueBase
9	Palmetto	Exact match	Charlotte, NC, United StatesHQ recorded Nov 6, 2026	201-500	624 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 · Nov 6, 2026 · View company records in RevenueBase
10	Noresco	Exact match	Westborough, NJ, United StatesHQ recorded Nov 6, 2026	201-500	496 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 · Nov 6, 2026 · View company records in RevenueBase
11	Titan Solar Power	Exact match	Santa Ana, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	464 contacts →
	Exact match “EnergyAid acquired Titan Solar Power's intellectual property (IP) in March of 2025 through bankruptcy court.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Posigen	Exact match	St. Rose, LA, United StatesHQ recorded Nov 6, 2026	501-1,000	452 contacts →
	Exact match “PosiGen is the nation's leading residential solar and energy efficiency provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Thermondo	Exact match	Berlin, GermanyHQ recorded Nov 6, 2026	1,001-5,000	446 contacts →
	Exact match “Gemeinsam machen wir Wohnen klimaneutral!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	IZI By EDF	Exact match	Courbevoie, FranceHQ recorded Nov 6, 2026	201-500	409 contacts →
	Exact match “En 2019, le Groupe EDF veut rendre la vie des Français plus simple et lance IZI by EDF, sa plateforme pour accompagner ses clients vers la transition énergétique.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Homeserve France	Exact match	Lyon Cedex 7, FranceHQ recorded Nov 6, 2026	501-1,000	391 contacts →
	Exact match “Depuis près de 25 ans, HomeServe accompagne les particuliers vers une maison plus durable, plus sûre et plus économique.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	KBANE	Exact match	Villeneuve-d’ascq, FranceHQ recorded Nov 6, 2026	501-1,000	384 contacts →
	Exact match “Kbane est la 1ère enseigne en France, dédiée à la maison performante.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Homeworks Energy, INC	Exact match	Medford, MA, United StatesHQ recorded Nov 6, 2026	201-500	381 contacts →
	Exact match “At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	ترشيد Tarshid	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	201-500	368 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 · Nov 6, 2026 · View company records in RevenueBase
19	Semper Solaris	Exact match	El Cajon, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	343 contacts →
	Exact match “Ranked #1 in Solar + Battery Installation in America by "Solar Power World" Go Solar American Style!#1 Veteran Owned Solar Company in California Solar Panels.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	EFFY	Exact match	Paris, FranceHQ recorded Nov 6, 2026	201-500	311 contacts →
	Exact match “Effy, spécialiste de l’efficience énergétique.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Remica	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	501-1,000	311 contacts →
	Exact match “Grupo Remica se crea en 1984 como empresa de instalación y mantenimiento de sistemas de calefacción, climatización y ACS.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Infinity	Exact match	Cairo, EgyptHQ recorded Nov 6, 2026	201-500	293 contacts →
	Exact match “Established in 2014, Infinity is the only dedicated renewable energy solutions provider in Egypt that develops clean energy solutions across several sectors and scales.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Meraki Solar	Exact match	Pensacola, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	284 contacts →
	Exact match “People.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	OTOVO	Exact match	Oslo, NorwayHQ recorded Nov 6, 2026	201-500	274 contacts →
	Exact match “Otovo is an AI-Native home and business energy services company with a primary focus on solar power.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Everlight Solar	Exact match	Verona, WI, United StatesHQ recorded Nov 6, 2026	51-200	269 contacts →
	Exact match “Everlight Solar provides homeowners with simple and affordable clean energy.” 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 “home energy contractors”. 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 13,267 home energy contractors worldwide

See the full list, filter by size, metro and specialty, and access 34,049 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Home energy contractors worldwide at a glance

As of Nov 6, 2026

27.2%Verified-email coverage

9.4Average contacts per company

1-10Median size (employees)

0.8%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

7,182

11-50

4,594

51-200

1,046

201-500

181

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 contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “home energy contractors” 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 34,049 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.

Home energy contractors by location

48 lists · largest first

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

How many home energy contractors are there worldwide?

RevenueBase identified 13,267 company matches for home energy contractors 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?

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 contractors?

The United States leads with 2,906 companies, followed by the United Kingdom (1,191) and France (1,165). Every home energy contractors list by country and city is linked on this page.

Which city has the most home energy contractors?

London leads with 108 company records, followed by Madrid (96) and Paris (92).

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 34,049 professional contacts with verified work emails tracked across these 13,267 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.