Company lists · Data refreshed October 2026

Top 25 Energy star certified contractors worldwide

Name: Energy star certified contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 10,402 companies tracked

RevenueBase identified 10,402 company matches for energy star certified contractors worldwide as of October 2026 and tracks 104,329 professional contacts across them, including 32,610 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers company matches for energy star certified 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 October 12, 2026. Country and city lists for energy star certified 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 Oct 12, 2026 How this list was built

10,402Companies

104,329Contacts tracked

32,610Verified emails

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The 25 largest energy star certified contractors worldwide

Ranked by team size

Top 25 of 10,402 company matches for energy star certified contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	Dalkia	Exact match	Saint-andré-lez-lille, FranceHQ recorded Oct 12, 2026	10001+	8,823 contacts →
	Exact match “Dalkia : ensemble, relevons le défi climatique!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Equans Belux	Exact match	Brussels, BelgiumHQ recorded Oct 12, 2026	5,001-10,000	5,347 contacts →
	Exact match “What if you could use your talent to contribute to the great challenges of tomorrow?” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Mckinstry	Exact match	Seattle, WA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,293 contacts →
	Exact match “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Truteam	Exact match	Daytona Beach, FL, United StatesHQ recorded Oct 12, 2026	10001+	1,567 contacts →
	Exact match “TruTeam is the nation’s largest insulation installer and we also install fireplaces, gutters, garage doors and more.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Ameresco	Exact match	Framingham, MA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,513 contacts →
	Exact match “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	GK	Exact match	Oslo, NorwayHQ recorded Oct 12, 2026	1,001-5,000	1,134 contacts →
	Exact match “GK er en ledende teknisk entreprenør og servicepartner.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Feenstra	Exact match	Lelystad, NetherlandsHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
8	SEL Construction Corporation	Exact match	Loomis, CA, United StatesHQ recorded Oct 12, 2026	n/a	722 contacts →
	Exact match “Experienced commercial contractor specializing in renewable energy, electrical, and roofing projects for privately-owned buildings as well as state/local government buildings in…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Sitelogiq	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 12, 2026	501-1,000	491 contacts →
	Exact match “SitelogIQ provides design, engineering, and construction management services that help organizations nationwide modernize their facilities and infrastructure.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Noresco	Exact match	Westborough, MA, United StatesHQ recorded Oct 12, 2026	201-500	479 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 · Oct 12, 2026 · View company records in RevenueBase
11	Korra Energi	Exact match	Cairo, EgyptHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
12	John W. Danforth Company	Exact match	Tonawanda, NY, United StatesHQ recorded Oct 12, 2026	501-1,000	410 contacts →
	Exact match “We are powered by the best people in the industry.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Veregy	Exact match	Phoenix, MO, United StatesHQ recorded Oct 12, 2026	501-1,000	403 contacts →
	Exact match “Veregy is an award-winning NAESCO-Accredited decarbonization company focusing on accelerating and simplifying the Energy Transition.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Arcxis	Exact match	Houston, TX, United StatesHQ recorded Oct 12, 2026	501-1,000	392 contacts →
	Exact match “ARCXIS (Formerly DPIS Builder Services), is the largest provider of HERS inspections, ENERGY STAR ratings, engineering and design, construction quality assurance and other builder…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Homeserve France	Exact match	Lyon Cedex 7, FranceHQ recorded Oct 12, 2026	501-1,000	385 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 · Oct 12, 2026 · View company records in RevenueBase
16	KBANE	Exact match	Villeneuve-d’ascq, FranceHQ recorded Oct 12, 2026	501-1,000	373 contacts →
	Exact match “Kbane est la 1ère enseigne en France, dédiée à la maison performante.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Homeworks Energy, INC	Exact match	Medford, MA, United StatesHQ recorded Oct 12, 2026	201-500	369 contacts →
	Exact match “At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Alterea	Exact match	Nantes, FranceHQ recorded Oct 12, 2026	201-500	363 contacts →
	Exact match “As an all trade and energy engineering company, ALTEREA operates through a reasoned approach in all your renovation projects, construction and energy optimization projects in the…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	ترشيد Tarshid	Exact match	Riyadh, Saudi ArabiaHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
20	Renotec NV	Exact match	Geel, BelgiumHQ recorded Oct 12, 2026	501-1,000	350 contacts →
	Exact match “Renotec is een gespecialiseerde hoofdaannemer die zich focust op energetische renovatie- en restauratiewerken en geeft zo gebouwen, monumenten, kunstwerken en ondergrondse…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Deode Energia	Exact match	Juiz De Fora, BrazilHQ recorded Oct 12, 2026	201-500	313 contacts →
	Exact match “A DEODE Energia foi fundada em 2012 proveniente da HF Energy.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Remica	Exact match	Madrid, SpainHQ recorded Oct 12, 2026	501-1,000	306 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 · Oct 12, 2026 · View company records in RevenueBase
23	EFFY	Exact match	Paris, FranceHQ recorded Oct 12, 2026	201-500	293 contacts →
	Exact match “Effy, spécialiste de l’efficience énergétique.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Arclima Engenharia	Exact match	Cabo De Santo Agostinho, BrazilHQ recorded Oct 12, 2026	201-500	292 contacts →
	Exact match “A Arclima Engenharia é uma empresa brasileira especializada em Climatização, Refrigeração e Eficiência Energética (HVAC), com atuação em todo o território nacional.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Vaughn Industries LLC	Exact match	Carey, OH, CanadaHQ recorded Oct 12, 2026	501-1,000	268 contacts →
	Exact match “TRADES YOU NEED.” Recorded in the RevenueBase company graph · Oct 12, 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 “energy star certified 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 10,402 energy star certified contractors worldwide

See the full list, filter by size, metro and specialty, and access 32,610 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy star certified contractors worldwide at a glance

As of Oct 12, 2026

31.3%Verified-email coverage

10.0Average contacts per company

1-10Median size (employees)

0.8%Largest-city concentration · Paris

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

5,487

11-50

3,664

51-200

920

201-500

151

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 energy star certified contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “energy star certified 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 32,610 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 12, 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.

Energy star certified contractors by location

32 lists · largest first

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

How many energy star certified contractors are there worldwide?

RevenueBase identified 10,402 company matches for energy star certified contractors 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?

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

Which country has the most energy star certified contractors?

The United States leads with 3,246 companies, followed by France (1,283) and the United Kingdom (578). Every energy star certified contractors list by country and city is linked on this page.

Which city has the most energy star certified contractors?

Paris leads with 85 company records, followed by Madrid (62) and London (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 32,610 professional contacts with verified work emails tracked across these 10,402 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 12, 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.