Company lists · Data refreshed September 2026

Top 25 Facility energy optimization software companies worldwide

RevenueBase identified 9,108 facility energy optimization software companies worldwide as of September 2026 and tracks 156,452 professional contacts across them, including 40,764 with verified work emails. The United States is the largest market and London the largest hub.

This list covers facility energy optimization software companies 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 facility energy optimization software companies 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
9,108Companies
156,452Contacts tracked
40,764Verified emails
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The 25 largest facility energy optimization software companies worldwide

Ranked by team size
Top 25 of 9,108 facility energy optimization software companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to facility energy optimization software companies: 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 evidenceCork, IrelandHQ checked Sep 28, 202610001+52,736 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceSan Ramon, CA, United StatesHQ checked Sep 28, 20261,001-5,0001,763 contacts →

Strong evidence

“At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.”

Source: RevenueBase Database · checked Sep 28, 2026
3Strong evidenceHouston, TX, United StatesHQ checked Sep 28, 20261,001-5,0001,563 contacts →

Strong evidence

“Quorum Software is a leading provider of energy software worldwide powering growth and profitability for energy businesses by connecting people, workflows, and systems with…”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceSingaporeHQ checked Sep 28, 202610001+1,105 contacts →

Partial evidence

“Aden Group is a Euro-Asian enterprise delivering comprehensive solutions to boost decarbonization, productivity and energy transition in the built environment.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceEschborn, GermanyHQ checked Sep 28, 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 28, 2026
6Partial evidenceNijmegen, NetherlandsHQ checked Sep 28, 20261,001-5,000913 contacts →

Partial evidence

“Planon is the leading global provider of Smart Sustainable Building Management software.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 2026501-1,000864 contacts →

Partial evidence

“Arcadia is the global utility data and energy solutions platform.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceEdison, NJ, United StatesHQ checked Sep 28, 20261,001-5,000669 contacts →

Partial 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 28, 2026
9Indirect evidenceWalton-on-thames, United KingdomHQ checked Sep 28, 2026201-500658 contacts →

Indirect evidence

“We are passionate about driving sustainable change for our planet.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,000595 contacts →

Partial evidence

“Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceBerlin, GermanyHQ checked Sep 28, 20261,001-5,000580 contacts →

Indirect evidence

“Our DNA are sustainable buildings As a Smart Building Solutioneer, we combine intelligent building technologies, data-based services, sustainable excellence and multiple synergy…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceStockholm, SwedenHQ checked Sep 28, 20261,001-5,000576 contacts →

Indirect evidence

“Nordomatic is a global impact pioneer in smart buildings, helping you optimize, simplify, and future-proof your operations.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceCharlotte, NC, United StatesHQ checked Sep 28, 2026201-500539 contacts →

Partial evidence

“Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceSingapore, GermanyHQ checked Sep 28, 2026501-1,000464 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
15Partial 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
16Indirect evidenceLas Vegas, NV, United StatesHQ checked Sep 28, 2026201-500447 contacts →

Indirect evidence

“Buildings affect people every moment of every day.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceBangalore, IndiaHQ checked Sep 28, 2026501-1,000446 contacts →

Partial evidence

“Founded in 2004 by a passionate team of entrepreneurs with deep expertise in energy management, Elmeasure began with a bold mission: to help industries, businesses, and…”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidenceBerlin, GermanyHQ checked Sep 28, 20261,001-5,000442 contacts →

Strong evidence

“The PSI Group develops software products for optimizing the flow of energy and materials for utilities and industry.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 2026501-1,000417 contacts →

Partial evidence

“At Stem, we’re reimagining technology to drive the energy transition.”

Source: RevenueBase Database · checked Sep 28, 2026
20Strong evidenceSevilla, MexicoHQ checked Sep 28, 2026201-500398 contacts →

Strong evidence

“Isotrol is the world market leader in energy software solutions and renewable energy plant control solutions used by large energy companies for 4 decades now.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceUtrecht, NetherlandsHQ checked Sep 28, 2026201-500390 contacts →

Partial evidence

“We develop products that allow manufacturers to easily monitor energy consumption and gain insight into machine maintenance.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceShelton, CT, United StatesHQ checked Sep 28, 2026201-500366 contacts →

Partial evidence

“Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceNorman, OK, United StatesHQ checked Sep 28, 2026201-500346 contacts →

Indirect evidence

“PCIEnergySolutions is a tight-knit team of 300 diligent product experts, engineers, business analysts, and more.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 2026201-500342 contacts →

Partial evidence

“The National Energy Services Company (TARSHID) is a national company wholly owned by the Public Investment Fund (PIF).”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceLe Bourget Du Lac, FranceHQ checked Sep 28, 202651-200300 contacts →

Partial evidence

“At the centre of the smart grid revolution, Energy Pool manages and optimizes complex systems (energy consumption of industrial sites, decentralized production, renewable…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 9,108 facility energy optimization software companies worldwide

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Facility energy optimization software companies worldwide at a glance

As of Sep 28, 2026
26.1%Verified-email coverage
17.2Average contacts per company
1-10Median size (employees)
1.3%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
5,090
11-50
3,003
51-200
748
201-500
122
501-1,000
44
1,001-5,000
50
5,001-10,000
8
10001+
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 facility energy optimization software companies, 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 facility energy optimization software companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “facility energy optimization software companies”. 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 facility energy optimization software companies), 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 facility energy optimization software companies, 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, 40,764 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.

Facility energy optimization software companies by location

54 lists · largest first

Every Facility energy optimization software companies 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 facility energy optimization software companies, 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 facility energy optimization software companies are there worldwide?

RevenueBase identified 9,108 facility energy optimization software companies 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 facility energy optimization software companies?

The United States leads with 1,610 companies, followed by Germany (545) and Spain (530). Every facility energy optimization software companies list by country and city is linked on this page.

Which city has the most facility energy optimization software companies?

London leads with 114 headquartered companies, followed by Madrid (99) and New York (81).

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 40,764 verified decision-maker contacts tracked across these 9,108 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.