About Energy Efficiency Tech
There are 10.8K companies in the Energy Efficiency Tech sector across the world, with 2.79K funded companies having collectively raised $46.5B in venture capital money and private equity. Overall 1.28K of these are Series A+ funded and the sector has seen the creation of 10 Unicorns.
Energy Efficiency Tech sector has seen 621 acquisitions and 172 IPOs. This represents almost 7.3% of all such companies - which is higher than the 4.9% exit rate of tech companies in general.
This sector includes companies offering tech solutions or tech-enabled services for measuring, managing, and controlling energy consumption or energy cost.
Energy Efficiency Tech sector is also known as Energy Optmization Tech, Energy Efficient Platforms, Energy Efficient Products or Energy-Efficient Products.
Companies included in Energy Efficiency Tech sector
Equipment, products or solutions whose usage will provide significant energy savings above the market standards and reduce energy usage when compared to normal conditions are covered. On products side LED and other energy efficient appliances & equipment are covered. Under Solutions Building energy management systems (BEMS, IEMS, HEMS), web enabled lighting solutions, smart windows used in construction, and fuel and engine monitoring are included.Companies excluded in Energy Efficiency Tech sector
Traditional companies manufacturing energy star rated products or appliances and large conglomerates like Johnson Controls, Schneider Electric, General Electric, Siemens, Honeywell, Carrier, Emerson, Philips are not covered. Consultancy and service companies offering knowledge about energy efficient products or solutions are also not covered.Market Map of Energy Efficiency Tech
The market map of Energy Efficiency Tech gives a visual overview of the sector, showing key business models, their interactions in the value chain, and industry evolution. Top 3 trending business models in Energy Efficiency Tech sector are Building Energy Management System, Smart LED Lights and Commercial Energy Monitoring.
Reports related to Energy Efficiency Tech
Here are some reports related to Energy Efficiency Tech sector:
Free
Reduction/optimization of energy, water and waste Report - Sector Report
Edition: April, 2026 (76 Pages)
Free
Energy Efficiency Tech - Sector Report
Edition: May, 2025 (90 Pages)
Premium
Energy Efficiency Tech Investor Landscape
Edition: February, 2025 (12 Pages)
View all reports related to Energy Efficiency Tech. Sign up today!Top Companies in Energy Efficiency Tech
There are more than 10.8K companies in Energy Efficiency Tech. OVO Energy is the top Energy Efficiency Tech company globally, ranked using Tracxn Score (what's this?).
Here are 5 of the top Energy Efficiency Tech companies globally:
Company | Description | Location | Founded | Current Stage | Private Funding Raised |
|---|---|---|---|---|---|
App-based power supplier from renewable energy sources | Bristol (United Kingdom) | 2009 | Series D | $516M | |
Manufacturer of smart thermostats, sensors, cameras, and security system bundles | Toronto (Canada) | 2007 | Acquired | $155M | |
Developer of a prototype to production connectivity platform for IoT | San Francisco (United States) | 2011 | Acquired | $135M | |
Provider of AI and app-based energy monitoring solutions | Cambridge (United States) | 2013 | Series D | $195M | |
Provider of advanced grid infrastructure, energy management, and smart metering solutions | Cham (Switzerland) | 1896 | Acquired | $1.03B |
Companies founded year-on-year in the Energy Efficiency Tech sector
5 new startups have been founded so far in 2026 in the Energy Efficiency Tech sector. 693 Energy Efficiency Tech startups were founded in 2019 - this is the most number of startups founded in any year in the last 10 years.
- Total Number of Companies
Year | No. of companies |
|---|---|
2026 | 5 |
2025 | 20 |
2024 | 74 |
2023 | 194 |
2022 | 237 |
2021 | 321 |
2020 | 597 |
2019 | 693 |
2018 | 680 |
2017 | 639 |
Companies founded across countries in the Energy Efficiency Tech sector
United States has 2,902 Energy Efficiency Tech startups, the most by any country, followed by United Kingdom which has 1,139 startups and India which has 864.
- Total Number of Companies
Country | No. of companies |
|---|---|
United States | 2,902 |
United Kingdom | 1,139 |
India | 864 |
China | 834 |
Germany | 686 |
Canada | 442 |
Australia | 391 |
France | 256 |
Netherlands | 236 |
Italy | 232 |
Stage-wise distribution of the Energy Efficiency Tech sector
Out of the total 10,849 Energy Efficiency Tech companies, 2,792 have secured funding. Among them, 1,281 have reached Series A or higher, and 999 to Series B or beyond.
Founded - 10,849
Funded - 2,792
Series A+ - 1,281
Series B+ - 999
Series C+ - 885
Company Stage | No. of companies |
|---|---|
Founded | 10,849 |
Funded | 2,792 |
Series A+ | 1,281 |
Series B+ | 999 |
Series C+ | 885 |
Want to know more about Energy Efficiency Tech ? Signup and explore Tracxn for free
- 10.8K+ Total Companies
- $46.5B+ Total Funding
- 2.8K+ Funded Companies
- 170+ IPOs
- 620+ Acquisitions
- 30+ Reports
Funding Trends in the Energy Efficiency Tech sector
Total funding year-on-year in the Energy Efficiency Tech sector
The Energy Efficiency Tech sector saw a total funding of more than $34.6B in the last 10 years. The most amount of funding was in 2022 at more than $5.43B. There has been a total funding of $1.15B in 2026 till date.
- Total Funding
Year | Total Funding |
|---|---|
2026 | $1.15B |
2025 | $3.69B |
2024 | $3.81B |
2023 | $3.83B |
2022 | $5.43B |
2021 | $5.28B |
2020 | $2.66B |
2019 | $2.26B |
2018 | $4.28B |
2017 | $2.23B |
Total funding across countries in the Energy Efficiency Tech sector
In the last 10 years, Energy Efficiency Tech startups in United States have recieved the highest funding among all countries - $20.4B. United Kingdom follows with $2.23B and Canada with $1.99B.
- Total Funding
Country | Total Funding |
|---|---|
United States | $20.4B |
United Kingdom | $2.23B |
Canada | $1.99B |
France | $1.45B |
China | $1.39B |
Sweden | $1.12B |
Germany | $899M |
Netherlands | $444M |
India | $237M |
Spain | $162M |
Total funding amount raised by stage in the Energy Efficiency Tech sector
Over the last 10 years, the Energy Efficiency Tech sector have seen $1.1B into Seed Stage funding rounds, $7.93B into Early Stage funding rounds and $11.7B go into Late Stage funding rounds.
Funding Stage | Total Funding |
|---|---|
Late Stage | $11.7B |
Early Stage | $7.93B |
Debt | $7.87B |
Post IPO | $2.55B |
PE | $2.47B |
Seed Stage | $1.1B |
Grant | $436M |
ICO | $29.1M |
Other-Equity | $328K |
Recent Funding Rounds in Energy Efficiency Tech
In the year 2026, till April 2026, Energy Efficiency Tech companies have raised $544M in equity funding across 29 rounds.
In the same period last year (i.e. till April 2025), Energy Efficiency Tech companies had raised $804M across 56 rounds.
So, 2026 has seen a 32.37% drop in funding in Energy Efficiency Tech companies as compared to 2025.
Here are some recent, important funding rounds in Energy Efficiency Tech:
Company | Round Raised | Amount Raised | Funding Date | Investors |
|---|---|---|---|---|
PE | 2204 | Apr 01, 2026 | ||
Seed | 2651 | Mar 27, 2026 | ||
Seed | 9288 | Mar 26, 2026 | and 5 more | |
Seed | 1227 | Mar 17, 2026 | ||
Series D | 9975 | Mar 16, 2026 | and 8 more |
Top Investors in Energy Efficiency Tech
Europa is the top investor in Energy Efficiency Tech companies based on number of companies invested.
Here are some top investors in Energy Efficiency Tech:
Investor | Location | Top Portfolio Companies |
|---|---|---|
Oak Ridge (United States) | ||
Arlington (United States) | ||
Brussels (Belgium) | ||
New York City (United States) |
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M&A activity in Energy Efficiency Tech
In the year 2026, till March 2026, 10 acquisitions happened in Energy Efficiency Tech sector. Last year, in 2025, a total of 40 acquisitions happened in Energy Efficiency Tech sector.
Here are some recent, important acquisitions in Energy Efficiency Tech:
Company | Acquisition Type | Acquisition Date | Acquirers |
|---|---|---|---|
Business Acquisition | Mar 24, 2026 | ||
Business Acquisition | Mar 20, 2026 | ||
Business Acquisition | Feb 23, 2026 | ||
Business Acquisition | Feb 23, 2026 | ||
Business Acquisition | Feb 21, 2026 |
Acquisition trends in Energy Efficiency Tech
Here are the acquisition trends in Energy Efficiency Tech:
- Total Number of Acquisitions
Year | No. of companies |
|---|---|
2026 | 10 |
2025 | 40 |
2024 | 38 |
2023 | 60 |
2022 | 69 |
2021 | 73 |
2020 | 42 |
2019 | 62 |
2018 | 43 |
2017 | 46 |
IPOs in Energy Efficiency Tech
In the year 2026, till January 2026, 1 IPO happened in Energy Efficiency Tech sector.
Here are some recent, important IPOs in Energy Efficiency Tech:
Company | IPO Date | Exchange Symbol |
|---|---|---|
Jan 21, 2026 | Bombay Stock Exchange (BSE) | |
Dec 09, 2024 | Tokyo Stock Exchange (TSE) | |
Jun 06, 2024 | National Association of Securities Dealers Automated Quotations (NASDAQ) | |
May 15, 2024 | Mexican Stock Exchange (BMV) | |
Jul 04, 2023 | Shenzhen Stock Exchange (SZSE) |
Colleges which produce the most Energy Efficiency Tech companies
Companies founded by alumni from top colleges in the Energy Efficiency Tech sector
Most number of Energy Efficiency Tech startups have been founded by alumni from Massachusetts Institute of Technology, Stanford University and Harvard University.
College | No. of companies |
|---|---|
Massachusetts Institute of Technology | 60 |
Stanford University | 54 |
Harvard University | 47 |
University of Cambridge | 37 |
Harvard Business School | 29 |
Imperial College London | 24 |
Cornell University | 23 |
University of Pennsylvania | 22 |
University of California (Berkeley) | 20 |
Carnegie Mellon University | 19 |
Total funding in companies founded by alumni from top colleges in the the Energy Efficiency Tech sector
In the last 10 years, Massachusetts Institute of Technology graduates' Energy Efficiency Tech companies have raised the most funding among top colleges. Harvard University alumni are second, and University of California (Berkeley) alumni are third.
College | Total Funding |
|---|---|
Massachusetts Institute of Technology | $5.63B |
Harvard University | $4.67B |
University of California (Berkeley) | $2.22B |
Stanford University | $1.96B |
University of Oxford | $1.29B |
The University of Queensland | $1.26B |
University of Pennsylvania | $1.02B |
Universitat Politècnica de Catalunya | $852M |
Duke University | $784M |
INSEAD | $703M |
Top News in Energy Efficiency Tech
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NIE Networks Uses Drones to Boost Capacity in UK FirstSync NI•Mar 27, 2026•NIE Networks, Heimdall Power
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Danfoss to invest ₹1,500 crore on data centre cooling and heat pumpsBusiness Line•Mar 26, 2026•Danfoss
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Budderfly Marks Record Year of Innovation, Portfolio Reaches 34 Patents and 36 Patent ApplicationsBusiness Wire•Mar 17, 2026•Budderfly
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Compagnie des Alpes Updates Parks Solarization Program with GreenYellow PartnershipWebDisclosure•Mar 16, 2026•GreenYellow, Compagnie des Alpes
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Paessler and QBS Software Announce EMEA Strategic PartnershipTahawulTech.com•Mar 06, 2026•QBS Software, Paessler
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Svenska Aerogel Enters Distribution Agreement with KRAHN Chemie GmbHCision•Feb 26, 2026•KRAHN, Svenska Aerogel
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CoolIT Systems Continues Rapid Growth as it Celebrates 25 YearsCoolIT Systems•Feb 25, 2026•CoolIT Systems
