Company lists · Data refreshed October 2026

Top 25 Industrial energy optimization startups worldwide

Name: Industrial energy optimization startups worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 16, 2026 5,925 companies tracked

RevenueBase identified 5,925 company matches for industrial energy optimization startups worldwide as of October 2026 and tracks 76,474 professional contacts across them, including 22,810 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers company matches for industrial energy optimization startups 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 October 16, 2026. Country and city lists for industrial energy optimization startups 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 Oct 16, 2026 How this list was built

5,925Companies

76,474Contacts tracked

22,810Verified emails

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The 25 largest industrial energy optimization startups worldwide

Ranked by team size

Top 25 of 5,925 company matches for industrial energy optimization startups worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	British GAS	Exact match	Windsor, United KingdomHQ recorded Oct 16, 2026	10001+	9,535 contacts →
	Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2	Quorum Software	Exact match	Houston, TX, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,580 contacts →
	Exact match “Quorum Software is a leading provider of energy software worldwide powering growth and profitability for energy businesses by connecting people, workflows, and systems with…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3	Danfoss Climate Solutions	Exact match	Nordborg, DenmarkHQ recorded Oct 16, 2026	10001+	1,227 contacts →
	Exact match “At Danfoss Climate Solutions, we engineer energy-efficient heating and cooling solutions to help the world get more out of less.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4	Aden Group	Exact match	SingaporeHQ recorded Oct 16, 2026	10001+	1,203 contacts →
	Exact match “Aden Group is a Euro-Asian enterprise delivering comprehensive solutions to boost decarbonization, productivity and energy transition in the built environment.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
5	Clarke Energy	Exact match	Liverpool, United KingdomHQ recorded Oct 16, 2026	1,001-5,000	1,055 contacts →
	Exact match “Clarke Energy, a Rehlko company, specialises in energy efficient, low carbon and flexible energy systems.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
6	KBC A Yokogawa Company	Exact match	Walton-on-thames, United KingdomHQ recorded Oct 16, 2026	201-500	691 contacts →
	Exact match “We are passionate about driving sustainable change for our planet.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7	Kimray, INC	Exact match	Oklahoma City, OK, United StatesHQ recorded Oct 16, 2026	501-1,000	531 contacts →
	Exact match “Kimray is a global solutions partner in the energy industry.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
8	3e Engenharia EM Eficiencia Energetica	Exact match	BrazilHQ recorded Oct 16, 2026	201-500	530 contacts →
	Exact match “A 3E Engenharia atua nacionalmente, oferecendo soluções para empresas concessionárias de serviços públicos, no planejamento, gestão, execução e inovação em projetos de Eficiência…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9	Korra Energi	Exact match	Cairo, EgyptHQ recorded Oct 16, 2026	1,001-5,000	476 contacts →
	Exact match “Korra Energi is a proud Egyptian leader in energy efficiency and construction services, backed by over 25 years of expertise and a vision of "Growth and Prosperity"(إعمار الأرض).” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10	PSI Software	Exact match	Berlin, GermanyHQ recorded Oct 16, 2026	1,001-5,000	451 contacts →
	Exact match “The PSI Group develops software products for optimizing the flow of energy and materials for utilities and industry.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
11	Elmeasure	Exact match	Bangalore, IndiaHQ recorded Oct 16, 2026	501-1,000	442 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12	Veolia Industries Global Solutions	Exact match	Aubervilliers, FranceHQ recorded Oct 16, 2026	1,001-5,000	429 contacts →
	Exact match “Veolia Industries Global Solutions est devenu Veolia Energie Performance depuis le 1er juin 2025.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
13	Fuse Energy	Exact match	London, TX, United KingdomHQ recorded Oct 16, 2026	501-1,000	412 contacts →
	Exact match “We are building a full stack energy company to lower cost of energy & accelerate energy abundance.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
14	Sensorfact	Exact match	Utrecht, NetherlandsHQ recorded Oct 16, 2026	201-500	395 contacts →
	Exact match “We develop products that allow manufacturers to easily monitor energy consumption and gain insight into machine maintenance.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15	Isotrol	Exact match	Sevilla, MexicoHQ recorded Oct 16, 2026	201-500	384 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16	Budderfly	Exact match	Shelton, CT, United StatesHQ recorded Oct 16, 2026	201-500	380 contacts →
	Exact match “Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
17	PCI Energy Solutions	Exact match	Norman, OK, United StatesHQ recorded Oct 16, 2026	201-500	360 contacts →
	Exact match “PCIEnergySolutions is a tight-knit team of 300 diligent product experts, engineers, business analysts, and more.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
18	NUS Consulting Group	Exact match	Park Ridge, NJ, United StatesHQ recorded Oct 16, 2026	201-500	360 contacts →
	Exact match “National Utility Service, Inc.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19	Entes Elektronik	Exact match	Istanbul, TürkiyeHQ recorded Oct 16, 2026	201-500	334 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 · Oct 16, 2026 · View company records in RevenueBase
20	Deode Energia	Exact match	Juiz De Fora, BrazilHQ recorded Oct 16, 2026	201-500	313 contacts →
	Exact match “A DEODE Energia foi fundada em 2012 proveniente da HF Energy.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
21	Energy Pool	Exact match	Le Bourget Du Lac, FranceHQ recorded Oct 16, 2026	51-200	310 contacts →
	Exact match “At the centre of the smart grid revolution, Energy Pool manages and optimizes complex systems (energy consumption of industrial sites, decentralized production, renewable…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
22	Cascade Energy	Exact match	Portland, OR, United StatesHQ recorded Oct 16, 2026	201-500	301 contacts →
	Exact match “At Cascade Energy, we believe in better.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
23	Janitza Electronics Gmbh	Exact match	Lahnau, GermanyHQ recorded Oct 16, 2026	501-1,000	287 contacts →
	Exact match “Janitza energy measurement technology Nowadays, energy management is not only relevant for the environment and for society but is also a critical competitive factor.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
24	Electro Industries Gaugetech	Exact match	Westbury, NY, United StatesHQ recorded Oct 16, 2026	201-500	243 contacts →
	Exact match “For over 45 years, Electro Industries/GaugeTech has been a leader in innovation and technological advancements in the areas of energy management and power monitoring.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
25	Prime Energy	Exact match	Sao Paulo, BrazilHQ recorded Oct 16, 2026	51-200	236 contacts →
	Exact match “Empresa voltada a projetos de Otimização e Eficiêntização no uso da energia elétrica.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “industrial energy optimization startups”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,925 industrial energy optimization startups worldwide

See the full list, filter by size, metro and specialty, and access 22,810 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial energy optimization startups worldwide at a glance

As of Oct 16, 2026

29.8%Verified-email coverage

12.9Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · Madrid

Oct 16, 2026Page data refreshed

Companies by employee count

1-10

3,442

11-50

1,884

51-200

428

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 industrial energy optimization startups are linked below.
What qualifies: Company records worldwide whose business descriptions match “industrial energy optimization startups” 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 22,810 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 October 16, 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.

Industrial energy optimization startups by location

36 lists · largest first

Every Industrial energy optimization startups 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 “industrial energy optimization startups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial energy optimization startups are there worldwide?

RevenueBase identified 5,925 company matches for industrial energy optimization startups worldwide as of October 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?

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

Which country has the most industrial energy optimization startups?

The United States leads with 703 companies, followed by Spain (414) and France (339). Every industrial energy optimization startups list by country and city is linked on this page.

Which city has the most industrial energy optimization startups?

Madrid leads with 81 company records, followed by Sao Paulo (52) and Paris (50).

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 22,810 professional contacts with verified work emails tracked across these 5,925 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 October 16, 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.