Company lists · Data refreshed September 2026

Top 25 Energy recovery consulting firms worldwide

RevenueBase identified 8,014 energy recovery consulting firms worldwide as of September 2026 and tracks 132,461 professional contacts across them, including 40,376 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers energy recovery consulting firms 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 28, 2026. Country and city lists for energy recovery consulting firms 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 28, 2026 86% judged on-target in blind review
8,014Companies
132,461Contacts tracked
40,376Verified emails
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The 25 largest energy recovery consulting firms worldwide

Ranked by team size
Top 25 of 8,014 energy recovery consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy recovery consulting firms: 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 evidenceSydney, AustraliaHQ checked Sep 28, 202610001+34,763 contacts →

Partial evidence

“Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceAberdeen, United KingdomHQ checked Sep 28, 202610001+26,949 contacts →

Strong evidence

“Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceAnaheim, CA, United StatesHQ checked Sep 28, 20261,001-5,000851 contacts →

Partial evidence

“Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceSantiago, ChileHQ checked Sep 28, 2026501-1,000807 contacts →

Partial evidence

“We are Pares & Alvarez, our extensive experience and the recognition of our clients makes us one of the leading Engineering Companies in environmental, consulting, engineering and…”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceSevilla, SpainHQ checked Sep 28, 20261,001-5,000688 contacts →

Indirect evidence

“INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceSeraing, BelgiumHQ checked Sep 28, 20261,001-5,000662 contacts →

Indirect evidence

“The Hamon Group does not exist anymore.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceDubai, United Arab EmiratesHQ checked Sep 28, 2026501-1,000595 contacts →

Partial evidence

“At Harris Pye, everything we do saves energy.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceAubervilliers, FranceHQ checked Sep 28, 20261,001-5,000460 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceIrvine, CA, United StatesHQ checked Sep 28, 2026201-500383 contacts →

Partial evidence

“We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceLong Beach, CA, United StatesHQ checked Sep 28, 2026201-500375 contacts →

Indirect evidence

“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.”

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceToronto, ON, CanadaHQ checked Sep 28, 2026201-500363 contacts →

Strong evidence

“Since 1964 the MCW Group has built a solid reputation for the delivery of Professional Consulting Engineering Services, Energy Management Services, and Engineering Development…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceBarcelona, SpainHQ checked Sep 28, 2026n/a351 contacts →

Partial evidence

“Ingeniería y Consultoría Energética orientada a la búsqueda y el desarrollo de soluciones energéticas de alta eficiencia para sus Clientes.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidencePark Ridge, NJ, United StatesHQ checked Sep 28, 2026201-500336 contacts →

Indirect evidence

“National Utility Service, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceJackson, MI, United StatesHQ checked Sep 28, 2026201-500305 contacts →

Partial evidence

“We provide expert engineering and consulting services that enable a more reliable and resilient power system.”

Source: RevenueBase Database · checked Sep 28, 2026
15Strong evidenceMadrid, SpainHQ checked Sep 28, 2026201-500298 contacts →

Strong evidence

“SÓLIDA, a Bureau Veritas Company, is an independent company founded in 2007 that provides high added-value engineering and consulting services within the renewable energy sector.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidencePortland, OR, United StatesHQ checked Sep 28, 2026201-500288 contacts →

Partial evidence

“At Cascade Energy, we believe in better.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceDuluth, MN, United StatesHQ checked Sep 28, 2026201-500281 contacts →

Partial evidence

“We act as an extension of your team, combining deep energy expertise with seamless alignment to your processes to advance projects with confidence.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceJuiz De Fora, BrazilHQ checked Sep 28, 2026201-500280 contacts →

Partial evidence

“A DEODE Energia foi fundada em 2012 proveniente da HF Energy.”

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceMinneapolis, MN, United StatesHQ checked Sep 28, 2026201-500264 contacts →

Strong evidence

“Merjent is an environmental, restoration, and engineering consulting firm with a long history serving the energy industry.”

Source: RevenueBase Database · checked Sep 28, 2026
20Strong evidenceKirkland, WA, United StatesHQ checked Sep 28, 2026201-500254 contacts →

Strong evidence

“We provide global renewable energy consulting services, focused on empowering clients to navigate the complexities of the energy transition.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceMason, OH, United StatesHQ checked Sep 28, 2026201-500247 contacts →

Partial evidence

“BSI Engineering is a full-service engineering consulting firm dedicated to delivering innovative, efficient, and effective solutions across various industries.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceMontréal, QC, CanadaHQ checked Sep 28, 2026201-500234 contacts →

Indirect evidence

“Fondée en 1956, PAGEAU MOREL est une entreprise spécialisée dans les domaines de l'ingénierie mécanique et électrique, de l'efficacité énergétique et de l'écoconception.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceHyderabad, IndiaHQ checked Sep 28, 2026501-1,000230 contacts →

Partial evidence

“Thermal Systems (TSPL) is a fast growing ISO 9001 certified heavy engineering company engaged in Waste Heat Recovery solutions around the world.”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidencePune, IndiaHQ checked Sep 28, 2026201-500226 contacts →

Strong evidence

“SgurrEnergy was originally established in Glasgow, UK in 2002 with an aim to excel in renewable energy consulting.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceSao Paulo, BrazilHQ checked Sep 28, 202651-200225 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 8,014 energy recovery consulting firms worldwide

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Energy recovery consulting firms worldwide at a glance

As of Sep 28, 2026
30.5%Verified-email coverage
16.5Average contacts per company
1-10Median size (employees)
1.2%Largest-city concentration · Madrid
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
5,243
11-50
2,150
51-200
438
201-500
82
501-1,000
21
1,001-5,000
23
5,001-10,000
2
10001+
4

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 energy recovery consulting firms, 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 energy recovery consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “energy recovery consulting firms”. 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 energy recovery consulting firms), 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 energy recovery consulting firms, 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, 40,376 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 28, 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.

Energy recovery consulting firms by location

40 lists · largest first

Every Energy recovery consulting firms 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 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 energy recovery consulting firms, 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 energy recovery consulting firms are there worldwide?

RevenueBase identified 8,014 energy recovery consulting firms 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?

Worley, headquartered in Sydney, tops this list with the largest team on record.

Which country has the most energy recovery consulting firms?

The United States leads with 1,195 companies, followed by France (651) and Germany (627). Every energy recovery consulting firms list by country and city is linked on this page.

Which city has the most energy recovery consulting firms?

Madrid leads with 98 headquartered companies, followed by Paris (78) and Houston (57).

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 40,376 verified decision-maker contacts tracked across these 8,014 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 28, 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.