Company lists · Data refreshed November 2026

Top 25 Data center efficiency firms worldwide

RevenueBase identified 2,772 company matches for data center efficiency firms worldwide as of November 2026 and tracks 117,226 professional contacts across them, including 29,293 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for data center efficiency firms 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 data center efficiency firms 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
2,772Companies
117,226Contacts tracked
29,293Verified emails
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The 25 largest data center efficiency firms worldwide

Ranked by team size
Top 25 of 2,772 company matches for data center efficiency firms 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 matchCork, IrelandHQ recorded Nov 6, 202610001+55,567 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchColumbus, United StatesHQ recorded Nov 6, 202610001+16,620 contacts →

Exact match

“Vertiv is a global leader in critical digital infrastructure for applications in data centers, communication networks, and commercial and industrial environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCleveland, OH, United StatesHQ recorded Nov 6, 20261,001-5,0002,554 contacts →

Exact match

“Park Place Technologies is the global leader in data center and networking optimization, we work with more than companies across the globe, boosting infrastructure performance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchFramingham, MA, United StatesHQ recorded Nov 6, 20261,001-5,0001,570 contacts →

Exact match

“Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure company delivering integrated solutions to create reliable power and modernize infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLas Vegas, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,261 contacts →

Exact match

“Switch was founded in by CEO Rob Roy and stands at the forefront as the premier data center designer, builder and operator, owning 100% of its land and facilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchFranklin, WI, United StatesHQ recorded Nov 6, 20261,001-5,0001,093 contacts →

Exact match

“We provide high-end technical and professional services for the entire lifecycle of data centers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSao Paulo, BrazilHQ recorded Nov 6, 20261,001-5,0001,043 contacts →

Exact match

“Scala Data Centers is the leading sustainable data center platform in the Hyperscale market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchRaleigh, NC, United StatesHQ recorded Nov 6, 2026501-1,000857 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLexington, WI, United StatesHQ recorded Nov 6, 2026501-1,000579 contacts →

Exact match

“Airedale by Modine is the critical cooling specialist, with the technology and expertise to meet the specific operational demands of data centers worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGurgaon, IndiaHQ recorded Nov 6, 202651-200546 contacts →

Exact match

“Shaping a future where technology meets responsibility.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHollywood, United StatesHQ recorded Nov 6, 2026501-1,000543 contacts →

Exact match

“NV5 Mission Critical is a trusted leader in mission-critical design and commissioning management with a strong international presence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchDallas, TX, United StatesHQ recorded Nov 6, 2026501-1,000536 contacts →

Exact match

“Integra is an industry-leading team designing & delivering innovative turnkey data centers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMumbai, IndiaHQ recorded Nov 6, 2026501-1,000513 contacts →

Exact match

“STTGDC is a leading data centre platform enabling the cloud, AI and digital services that power how people live, work and connect.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAshburn, OR, United StatesHQ recorded Nov 6, 2026501-1,000401 contacts →

Exact match

“Hanley Energy are global innovators in Critical Power and Energy Management solutions, with a stable of world-class engineers shared between European headquarters in Ireland…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSingaporeHQ recorded Nov 6, 202651-200360 contacts →

Exact match

“Pro-Matrix, prides on developing and designing data centers tailored to meet all our client’s business needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHengelo, NetherlandsHQ recorded Nov 6, 2026501-1,000350 contacts →

Exact match

“Previder is the largest Dutch-based and owned datacenter company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLouisville, KY, United StatesHQ recorded Nov 6, 20261,001-5,000348 contacts →

Exact match

“We are your digital partner for sustainability and efficiency, ensuring Life Is On, for homes, buildings, data centers, infrastructure and industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 2026201-500336 contacts →

Exact match

“A World Brand/Pride of Turkey In Energy Quality ENTES is a family that works ardently for energy quality and efficiency in our country, where energy is valuable and overcosting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAustin, TX, United StatesHQ recorded Nov 6, 2026201-500320 contacts →

Exact match

“Overwatch is building the workforce behind the future of AI and digital infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHafnarfjörður, IcelandHQ recorded Nov 6, 202651-200314 contacts →

Exact match

“atNorth is a leading Nordic data center company specializing in scalable high-density colocation and built-to-suit facilities that meet the unique needs of today’s AI and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAustin, FL, United StatesHQ recorded Nov 6, 2026201-500310 contacts →

Exact match

“Build smarter.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202651-200306 contacts →

Exact match

“Compass Datacenters does data centers differently.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchPortland, OR, United StatesHQ recorded Nov 6, 2026201-500304 contacts →

Exact match

“At Cascade Energy, we believe in better.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000293 contacts →

Exact match

“Over the last 15 years, we have worked in the world's top data centres and commercial facilities, providing quality engineering services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMontrouge, FranceHQ recorded Nov 6, 2026201-500277 contacts →

Exact match

“Founded in 1983, APL is a Group specialised in the consultancy, engineering, construction and operation of data centers.”

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

Showing 25 of 2,772 data center efficiency firms worldwide

See the full list, filter by size, metro and specialty, and access 29,293 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Data center efficiency firms worldwide at a glance

As of Nov 6, 2026
25.0%Verified-email coverage
42.3Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,464
11-50
908
51-200
277
201-500
59
501-1,000
28
1,001-5,000
22
5,001-10,000
3
10001+
4

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 data center efficiency firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “data center efficiency firms” 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 29,293 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.

Data center efficiency firms by location

16 lists · largest first

Every Data center efficiency 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 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 “data center efficiency firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data center efficiency firms are there worldwide?

RevenueBase identified 2,772 company matches for data center efficiency firms 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?

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

Which country has the most data center efficiency firms?

The United States leads with 724 companies, followed by the United Kingdom (144) and Spain (120). Every data center efficiency firms list by country and city is linked on this page.

Which city has the most data center efficiency firms?

London leads with 43 company records, followed by Madrid (34) and Singapore (28).

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 29,293 professional contacts with verified work emails tracked across these 2,772 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.