Company lists · Data refreshed November 2026

Top 25 Home energy upgrade contractors worldwide

RevenueBase identified 2,011 company matches for home energy upgrade contractors worldwide as of November 2026 and tracks 16,033 professional contacts across them, including 3,957 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for home energy upgrade 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 upgrade 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
2,011Companies
16,033Contacts tracked
3,957Verified emails
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The 25 largest home energy upgrade contractors worldwide

Ranked by team size
Top 25 of 2,011 company matches for home energy upgrade 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLelystad, NetherlandsHQ recorded Nov 6, 20261,001-5,000813 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
2Exact matchLyon Cedex 7, FranceHQ recorded Nov 6, 2026501-1,000391 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
3Exact matchVilleneuve-d’ascq, FranceHQ recorded Nov 6, 2026501-1,000384 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
4Exact matchMedford, MA, United StatesHQ recorded Nov 6, 2026201-500381 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
5Exact matchMoncton, BC, CanadaHQ recorded Nov 6, 2026501-1,000218 contacts →

Exact match

“Greenfoot Energy Solutions was established in 2014 by a group of energy experts dedicated to improving energy efficiency in Atlantic Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSolaize, FranceHQ recorded Nov 6, 2026n/a217 contacts →

Exact match

“Eurocombles, isoler vos combles, garages et caves à seulement 1€!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGastonia, NC, United StatesHQ recorded Nov 6, 2026201-500169 contacts →

Exact match

“For nearly a century, GSM Services has built its reputation on reliability, honesty, expert service, and high-quality workmanship.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBristol, United KingdomHQ recorded Nov 6, 2026201-500117 contacts →

Exact match

“We are a leading provider of retrofit residential decarbonisation across the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLynnwood, WA, United StatesHQ recorded Nov 6, 2026201-500110 contacts →

Exact match

“There isn't one way to do things, but there is a right way.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSkelmersdale, United KingdomHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“Sustainable Building Services (UK) Ltd (SBS) is a purpose-led, multi-award-winning turnkey solutions provider specialising in retrofit energy efficiency and decarbonisation works…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCardiff, United KingdomHQ recorded Nov 6, 202651-20097 contacts →

Exact match

“At City Energy Network, we help households across the UK improve energy efficiency, cut bills, and reduce carbon emissions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPhelps, NY, United StatesHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“Halco is a highly accredited, national award-winning contractor that has been providing high-quality solutions to residential and commercial clients since 1984.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchKnowsley, United KingdomHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“Established in 2016, we have grown to become one of the most reputable and reliable specialists within the renewable, heating, and insulation sectors in the United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBirmingham, AL, United StatesHQ recorded Nov 6, 2026n/a73 contacts →

Exact match

“If your business is interested in cutting energy costs and securing little known incentives to help fund initial project costs, SEMCO can help you.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAlixan, FranceHQ recorded Nov 6, 202611-5071 contacts →

Exact match

“Dorémi est une coopérative de l'Economie Sociale et Solidaire, rattachée à Enercoop producteur et fournisseur d'électricité 100 % renouvelable.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBretagne, FranceHQ recorded Nov 6, 2026201-50070 contacts →

Exact match

“Réduisez vos factures d'énergie, améliorez votre confort et valorisez votre logement grâce à la rénovation énergétique!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMaitland, FL, United StatesHQ recorded Nov 6, 2026201-50066 contacts →

Exact match

“Since its founding, Florida Energy Water & Air has been on a mission to help its customers maximize comfort and enjoyment at home by improving a home’s energy efficiency, as well…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWilmington, MA, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“helps Massachusetts residents reduce energy consumption and costs, and increase comfort in their homes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchRancho Cordova, CA, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“When you turn to us for your homes' energy efficient upgrade, you can take comfort in knowing you've made the right choice for your Plumbing, Electrical, Solar or Heating and Air…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCrossmolina, IrelandHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Churchfield Home Services is registered with SEAI as a One Stop Shop for home energy upgrades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchPewaukee, CA, United StatesHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“Staples Energy helps commercial and residential customers, places of worship, and public facilities save hundreds of millions of kilowatt hours of energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 2026501-1,00057 contacts →

Exact match

“Soligo helps homeowners upgrade their homes with solar, battery storage, roofing, HVAC, and EV charging solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchParis, FranceHQ recorded Nov 6, 202611-5057 contacts →

Exact match

“Crust énergie réalise des travaux rénovation énergétique et les finance à 100%.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAuckland, New ZealandHQ recorded Nov 6, 2026201-50055 contacts →

Exact match

“Brightr is here to make New Zealand lives better, one home at a time – and that’s got to be a positive thing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchParis, FranceHQ recorded Nov 6, 202611-5053 contacts →

Exact match

“Ithaque a été créée avec la conviction que la rénovation énergétique des maisons est un enjeu central de la transition écologique.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 2,011 home energy upgrade contractors worldwide

See the full list, filter by size, metro and specialty, and access 3,957 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Home energy upgrade contractors worldwide at a glance

As of Nov 6, 2026
24.7%Verified-email coverage
8.0Average contacts per company
1-10Median size (employees)
1.8%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,046
11-50
728
51-200
162
201-500
34
501-1,000
9
1,001-5,000
3
5,001-10,000
1
10001+
2

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 upgrade contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “home energy upgrade 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 3,957 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 upgrade contractors by location

10 lists · largest first

Every Home energy upgrade contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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

How many home energy upgrade contractors are there worldwide?

RevenueBase identified 2,011 company matches for home energy upgrade 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?

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

Which country has the most home energy upgrade contractors?

The United States leads with 628 companies, followed by the United Kingdom (345) and France (321). Every home energy upgrade contractors list by country and city is linked on this page.

Which city has the most home energy upgrade contractors?

London leads with 36 company records, followed by Paris (29) and Austin (12).

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 3,957 professional contacts with verified work emails tracked across these 2,011 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.