Company lists · Data refreshed September 2026

Top 25 Building energy management consultants worldwide

RevenueBase identified 23,709 building energy management consultants worldwide as of September 2026 and tracks 313,390 professional contacts across them, including 93,279 with verified work emails. The United States is the largest market and London the largest hub.

This list covers building energy management consultants 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 27, 2026. Country and city lists for building energy management consultants 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 27, 2026 86% judged on-target in blind review
23,709Companies
313,390Contacts tracked
93,279Verified emails
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The 25 largest building energy management consultants worldwide

Ranked by team size
Top 25 of 23,709 building energy management consultants worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to building energy management consultants: 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
1Strong evidenceCork, IrelandHQ checked Sep 27, 202610001+52,736 contacts →

Strong evidence

“Johnson Controls is a global leader in thermal management, mission-critical building systems, energy efficiency and decarbonization.”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceWindsor, United KingdomHQ checked Sep 27, 202610001+9,238 contacts →

Indirect evidence

“Taking care of things.”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceSaint-andré-lez-lille, FranceHQ checked Sep 27, 202610001+8,427 contacts →

Indirect evidence

“Dalkia : ensemble, relevons le défi climatique!”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 27, 202610001+7,045 contacts →

Indirect evidence

“We design, build and maintain the assets that power the world for today and make it future-ready for tomorrow.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceChicago, WY, United StatesHQ checked Sep 27, 20261,001-5,0004,156 contacts →

Indirect evidence

“Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceDubai, United Arab EmiratesHQ checked Sep 27, 20265,001-10,0004,058 contacts →

Partial evidence

“Enova is the regional leader in integrated energy and multi-technical services, delivering comprehensive services to its clients.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceSeattle, WA, United StatesHQ checked Sep 27, 20261,001-5,0002,213 contacts →

Partial evidence

“We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.”

Source: RevenueBase Database · checked Sep 27, 2026
8Partial evidenceAustin, TX, United StatesHQ checked Sep 27, 20261,001-5,0002,121 contacts →

Partial evidence

“CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceBunnik, NetherlandsHQ checked Sep 27, 20265,001-10,0002,021 contacts →

Indirect evidence

“EQUANS is de nieuwe naam van ENGIE Services in Nederland.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceFramingham, MA, United StatesHQ checked Sep 27, 20261,001-5,0001,383 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceOslo, NorwayHQ checked Sep 27, 20261,001-5,0001,150 contacts →

Indirect evidence

“GK er en ledende teknisk entreprenør og servicepartner.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceAustin, TX, United StatesHQ checked Sep 27, 2026n/a1,145 contacts →

Indirect evidence

“OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidenceLondon, United KingdomHQ checked Sep 27, 2026501-1,0001,103 contacts →

Partial evidence

“We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 27, 20265,001-10,0001,064 contacts →

Partial evidence

“Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceHelsinki, FinlandHQ checked Sep 27, 20261,001-5,0001,027 contacts →

Indirect evidence

“Granlund on voimakkaasti kasvava kiinteistö- ja rakennusalan asiantuntijayhtiö.”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceEschborn, GermanyHQ checked Sep 27, 20261,001-5,0001,021 contacts →

Partial evidence

“Techem is a leading global energy service provider for the real estate sector and private homeowners.”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceLondon, United KingdomHQ checked Sep 27, 20261,001-5,0001,007 contacts →

Partial evidence

“Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceAnaheim, CA, United StatesHQ checked Sep 27, 20261,001-5,000851 contacts →

Indirect 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 27, 2026
19Indirect evidenceNew York, United StatesHQ checked Sep 27, 2026501-1,000803 contacts →

Indirect evidence

“Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 27, 20261,001-5,000745 contacts →

Indirect evidence

“ALEMCO is a Mechanical, Electrical and Plumbing Contractor and a subsidiary of the ALEC Group.”

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidencePortland, OR, United StatesHQ checked Sep 27, 2026201-500744 contacts →

Partial evidence

“PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.”

Source: RevenueBase Database · checked Sep 27, 2026
22Strong evidenceUnited StatesHQ checked Sep 27, 20261,001-5,000712 contacts →

Strong evidence

“The Linc Group is an award-winning provider of integrated facilities management, HVAC and building systems services, lighting and electrical solutions, and other support services…”

Source: RevenueBase Database · checked Sep 27, 2026
23Strong evidenceEdison, NJ, United StatesHQ checked Sep 27, 20261,001-5,000669 contacts →

Strong evidence

“Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.”

Source: RevenueBase Database · checked Sep 27, 2026
24Partial evidenceDubai, United Arab EmiratesHQ checked Sep 27, 2026501-1,000595 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
25Strong evidenceSkive, DenmarkHQ checked Sep 27, 2026501-1,000589 contacts →

Strong evidence

“For us, sustainable development begins with setting some of the highest standards in energy management and protection – the faster, the better.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 23,709 building energy management consultants worldwide

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Building energy management consultants worldwide at a glance

As of Sep 27, 2026
29.8%Verified-email coverage
13.2Average contacts per company
1-10Median size (employees)
1.0%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
14,396
11-50
7,017
51-200
1,688
201-500
264
501-1,000
88
1,001-5,000
76
5,001-10,000
7
10001+
11

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 building energy management consultants, 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 building energy management consultants are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “building energy management consultants”. 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 building energy management consultants), 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 building energy management consultants, 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, 93,279 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 27, 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.

Building energy management consultants by location

91 lists · largest first

Every Building energy management consultants 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 building energy management consultants, 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 building energy management consultants are there worldwide?

RevenueBase identified 23,709 building energy management consultants 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?

Johnson Controls, headquartered in Milwaukee, tops this list with the largest team on record.

Which country has the most building energy management consultants?

The United States leads with 3,530 companies, followed by France (1,752) and the United Kingdom (1,720). Every building energy management consultants list by country and city is linked on this page.

Which city has the most building energy management consultants?

London leads with 245 headquartered companies, followed by Madrid (209) and Paris (209).

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 93,279 verified decision-maker contacts tracked across these 23,709 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 27, 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.