Company lists · Data refreshed September 2026

Top 25 Industrial energy audit services worldwide

RevenueBase identified 3,344 industrial energy audit services worldwide as of September 2026 and tracks 20,392 professional contacts across them, including 5,069 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers industrial energy audit services 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 industrial energy audit services 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
3,344Companies
20,392Contacts tracked
5,069Verified emails
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The 25 largest industrial energy audit services worldwide

Ranked by team size
Top 25 of 3,344 industrial energy audit services worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to industrial energy audit services: 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 evidenceBarcelos, PortugalHQ checked Sep 21, 20261,001-5,000630 contacts →

Partial evidence

“Mecwide is a multidisciplinary industrial engineering company providing EPC (Engineering, Procurement & Construction) solutions and integrated services in metalworking, electrical…”

Source: RevenueBase Database · checked Sep 21, 2026
2Strong evidenceAubervilliers, FranceHQ checked Sep 21, 20261,001-5,000460 contacts →

Strong evidence

“Veolia Industries Global Solutions est devenu Veolia Energie Performance depuis le 1er juin 2025.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidencePortland, OR, United StatesHQ checked Sep 21, 2026201-500288 contacts →

Partial evidence

“At Cascade Energy, we believe in better.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceSao Paulo, BrazilHQ checked Sep 21, 202651-200225 contacts →

Partial evidence

“Empresa voltada a projetos de Otimização e Eficiêntização no uso da energia elétrica.”

Source: RevenueBase Database · checked Sep 21, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-200205 contacts →

Partial evidence

“Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceCluj-napoca, RomaniaHQ checked Sep 21, 2026501-1,000176 contacts →

Partial evidence

“We are a competitive, strong and trustworthy company in the sector of major electrical energy players.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceGoiania, BrazilHQ checked Sep 21, 20261,001-5,000150 contacts →

Partial evidence

“Fundada em 2006, em Goiânia-GO, a Enerwatt Engenharia iniciou suas atividades atuando na área de projetos e consultoria energética.”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceStockholm, SwedenHQ checked Sep 21, 2026201-500137 contacts →

Partial evidence

“Våra kunder har de energieffektivaste fastigheterna!”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceVoorhees, NJ, United StatesHQ checked Sep 21, 202651-200135 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceLjubljana, SloveniaHQ checked Sep 21, 202651-200130 contacts →

Partial evidence

“Resalta is a leading European energy service company (ESCO) helping organizations reduce costs, lower emissions, and optimize energy use.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceLa Crosse, WI, United StatesHQ checked Sep 21, 202651-200121 contacts →

Partial evidence

“Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceGrapevine, TX, United StatesHQ checked Sep 21, 202651-200116 contacts →

Indirect evidence

“Ideal Impact was founded March 2, 2009 with a well-defined mission and strategy: to use our world-renowned expertise to generate $10 billion for education and ministries.”

Source: RevenueBase Database · checked Sep 21, 2026
13Strong evidenceAalst, BelgiumHQ checked Sep 21, 2026n/a115 contacts →

Strong evidence

“Wij helpen industriële bedrijven hun energiekosten te verminderen.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceBrno, Czech RepublicHQ checked Sep 21, 202651-200112 contacts →

Indirect evidence

“We create a sustainable future.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceUnited StatesHQ checked Sep 21, 202651-200108 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceDoxford International Business Park, United KingdomHQ checked Sep 21, 202651-200106 contacts →

Partial evidence

“Managing business energy can be overwhelming.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceVersailles, FranceHQ checked Sep 21, 202651-20093 contacts →

Indirect evidence

“Avez-vous besoin d'aide pour améliorer les performances énergétiques de vos bâtiments?”

Source: RevenueBase Database · checked Sep 21, 2026
18Strong evidenceLimerick, IrelandHQ checked Sep 21, 202651-20087 contacts →

Strong evidence

“EM3 is an industrial energy engineering and advisory partner We work with energy-intensive organisations to drive efficiencies, reduce energy costs, and deliver on decarbonisation…”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceMississauga, ON, CanadaHQ checked Sep 21, 202611-5080 contacts →

Indirect evidence

“We deliver solutions for our clients because we listen to their needs.”

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidencePescara, ItalyHQ checked Sep 21, 202611-5078 contacts →

Partial evidence

“servizi di progettazione integrata, risparmio energetico, analisi energetiche finalizzate all'energy saving impianti termici impianti elettrici energie alternative.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceRosemère, QC, CanadaHQ checked Sep 21, 202611-5073 contacts →

Indirect evidence

“We offer a wide variety of services throughout Canada in both French and English.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceEscondido, CA, United StatesHQ checked Sep 21, 202651-20062 contacts →

Indirect evidence

“Our office is in Escondido and we cover all of Southern California.”

Source: RevenueBase Database · checked Sep 21, 2026
23Partial evidencePortland, OR, United StatesHQ checked Sep 21, 202651-20060 contacts →

Partial evidence

Energy 350 takes pride in performing high quality energy studies and energy efficiency related services for end users as well as program administrators.”

Source: RevenueBase Database · checked Sep 21, 2026
24Partial evidenceLondon, United KingdomHQ checked Sep 21, 202651-20060 contacts →

Partial evidence

“We help heavy industry like steel become more energy efficient through the deployment of intelligent MV motor control via a zero-capex model: guaranteed net savings for the…”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidencePewaukee, WI, United StatesHQ checked Sep 21, 202651-20059 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 3,344 industrial energy audit services worldwide

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Industrial energy audit services worldwide at a glance

As of Sep 21, 2026
24.9%Verified-email coverage
6.1Average contacts per company
1-10Median size (employees)
1.0%Largest-city concentration · Madrid
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
2,274
11-50
855
51-200
157
201-500
24
501-1,000
6
1,001-5,000
6

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 industrial energy audit services, 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 industrial energy audit services are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “industrial energy audit services”. 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 industrial energy audit services), 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 industrial energy audit services, 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, 5,069 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.

Industrial energy audit services by location

17 lists · largest first

Every Industrial energy audit services 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 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 industrial energy audit services, 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 industrial energy audit services are there worldwide?

RevenueBase identified 3,344 industrial energy audit services 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?

Mecwide, headquartered in Barcelos, tops this list with the largest team on record.

Which country has the most industrial energy audit services?

The United States leads with 464 companies, followed by France (264) and Spain (241). Every industrial energy audit services list by country and city is linked on this page.

Which city has the most industrial energy audit services?

Madrid leads with 34 headquartered companies, followed by Paris (30) and London (20).

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 5,069 verified decision-maker contacts tracked across these 3,344 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.