Top 25 CleanTech Startups to Look Out in [2023]

Have you ever wondered who is on the list of CleanTech Companies with the highest growth rates?

You’re not alone.

There are hundreds of CleanTech Companies found there, and keeping track of the hottest new startups can be challenging.

But don’t worry, we’ve got you covered. Here are the top 25 fast-growing CleanTech Startups that have top-tier venture capital funding.

What are CleanTech Startups?

CleanTech startups are companies that focus on developing innovative technologies and products that reduce the environmental impact of businesses and consumers. 

These startups often work in the areas of renewable energy, sustainable transportation, energy storage, water conservation, and waste management. They may also focus on developing smart products and services that enable businesses to reduce their energy usage and carbon footprint.

Top 25 Fastest-Growing Startups In CleanTech

1) Northvolt

Northvolt is a lithium-ion battery manufacturer specializing in environmentally friendly batteries.

Details of the startup:

• Country: Sweden
• City: Stockholm
• Started in: 2016
• Founders: Paolo Cerruti, Peter Carlsson
• Number of employees: 1001-5000
• Funding amount: $6,040,092,593
• Number of funding rounds: 9
• Number of investors: 48

You can find their website here.

2) BlocPower

BlocPower is an energy technology company that creates communities that are healthier, greener, and smarter.

Details of the startup:

• Country: United States
• City: Brooklyn
• Started in: 2014
• Founders: Donnel Baird, Morris Cox
• Number of employees: 51-100
• Funding amount: $75,923,153
• Number of funding rounds: 10
• Number of investors: 20

You can find their website here.

3) Persefoni

Persefoni creates an artificial intelligence platform that allows businesses to plan, monitor, evaluate, minimize, and report their carbon footprint.

Details of the startup:

• Country: United States
• City: Tempe
• Started in: 2020
• Founders: Jason Offerman, Kentaro Kawamori, Kim Stroh
• Number of employees: 11-50
• Funding amount: $13,200,000
• Number of funding rounds: 2
• Number of investors: 4

You can find their website here.

4) LanzaTech

Companies, communities, and countries all throughout the world are benefiting from new economic opportunities.

Details of the startup:

• Country: United States
• City: Skokie
• Started in: 2005
• Founders: Sean Simpson
• Number of employees: 51-100
• Funding amount: $280,400,000
• Number of funding rounds: 7
• Number of investors: 11

You can find their website here.

5) Rad Power Bikes

We’re designing a world where transportation is energy-efficient, pleasurable, and accessible to everyone at Rad Power Bikes.

Details of the startup:

• Country: United States
• City: Seattle
• Started in: 2007
• Founders: Mike Radenbaugh, Tyler Collins
• Number of employees: 501-1000
• Funding amount: $175,320,365
• Number of funding rounds: 4
• Number of investors: 8

You can find their website here.

6) Monolith Materials

Monolith Materials is a carbon black manufacturer that converts natural gas to carbon black using a patented technique.

Details of the startup:

• Country: United States
• City: Lincoln
• Started in: 2012
• Founders: Pete Johnson, Robert Hanson
• Number of employees: 51-100
• Funding amount: $64,297,594
• Number of funding rounds: 8
• Number of investors: 3

You can find their website here.

7) Li-Cycle

Li-Cycle is a clean technology firm on a mission to use its unique solutions to address a worldwide problem that is becoming increasingly urgent.

Details of the startup:

• Country: Canada
• City: Mississauga
• Started in: 2016
• Founders: Ajay Kochhar, Tim Johnston
• Number of employees: 11-50
• Funding amount: $2,700,000
• Number of funding rounds: 1
• Number of investors: 1

You can find their website here.

8) Skeleton Technologies

Skeleton Technologies is a manufacturer and developer of ultracapacitors with excellent energy and power density.

Details of the startup:

• Country: Estonia
• City: Tallinn
• Started in: 2009
• Founders: Oliver Ahlberg, Taavi Madiberk
• Number of employees: 101-250
• Funding amount: € 138,688,763
• Number of funding rounds: 8
• Number of investors: 12

You can find their website here.

9) Jeff

Jeff is a day-to-day services omnichannel ecosystem.

Details of the startup:

• Country: Spain
• City: Valencia
• Started in: 2015
• Founders: Adrián Lorenzo, Eloi Gomez, Rubén Muñoz Trapote
• Number of employees: 501-1000
• Funding amount: € 27,800,000
• Number of funding rounds: 5
• Number of investors: 15

You can find their website here.

10) Sono Motors

Sono Motors is a company that provides transportation and energy services all over the world.

Details of the startup:

• Country: Germany
• City: Munich
• Started in: 2016
• Founders: Jona Christians, Laurin Hahn, Navina Pernsteiner
• Number of employees: 101-250
• Funding amount: $126,588,253
• Number of funding rounds: 6
• Number of investors: 7

You can find their website here.

11) Otovo

Otovo is a marketplace for installing distributed energy systems. The business is constructing Europe’s first home solar power plant.

Details of the startup:

• Country: Norway
• City: Oslo
• Started in: 2016
• Founders: Andreas Bentzen, Andreas Thorsheim, Lars Syse Christiansen, Simen Fure Jorgensen
• Number of employees: 101-250
• Funding amount: $38,906,653
• Number of funding rounds: 5
• Number of investors: 8

You can find their website here.

12) Noccarc Robotics

Noccarc Robotics, a SIIC IIT Kanpur incubatee firm, is a manufacturer of goods for the MedTech and CleanTech industries.

Details of the startup:

• Country: India
• City: Pune
• Started in: 2017
• Founders: Harshit Rathore, Nikhil Kurele
• Number of employees: 51-100
• Funding amount: ₹124,000,000
• Number of funding rounds: 1
• Number of investors: 2

You can find their website here.

13) ZunRoof

ZunRoof is a home-tech firm that provides solar rooftop systems with smart and clean energy.

Details of the startup:

• Country: India
• City: Gurgaon
• Started in: 2016
• Founders: Kartik Marwah, Pranesh Chaudhary, Sushant Sachan
• Number of employees: 51-100
• Funding amount: $4,669,234
• Number of funding rounds: 6
• Number of investors: 9

You can find their website here.

14) PHYSEE Technologies

PowerWindow is a light-tinted energy-producing window that creates electricity by integrating three different technologies.

Details of the startup:

• Country: The Netherlands
• City: Delft
• Started in: 2014
• Founders: Ferdinand Grapperhaus, Willem Kesteloo
• Number of employees: 11-50
• Funding amount: € 12,233,063
• Number of funding rounds: 5
• Number of investors: 13

You can find their website here.

15) Peak Power Inc

Intelligent energy in smart cities is enabled by a software firm.

Details of the startup:

• Country: Canada
• City: Toronto
• Started in: 2015
• Founders: Benson Pei Sen Hu, Derek Lim Soo, Matthew Sachs
• Number of employees: 11-50
• Funding amount: $25,074,753
• Number of funding rounds: 8
• Number of investors: 12

You can find their website here.

16) Airly

Airly is a web-based startup that specializes in providing hyper-local air pollution data.

Details of the startup:

• Country: Poland
• City: Kraków
• Started in: 2016
• Founders: Aleksander Konior, Michal Misiek, Wiktor Warchałowski
• Number of employees: 11-50
• Funding amount: $6,395,000
• Number of funding rounds: 4
• Number of investors: 17

You can find their website here.

17) Submer

Immersed datacenters that are very efficient, ultra-dense, and long-lasting.

Details of the startup:

• Country: Spain
• City: Barcelona
• Started in: 2015
• Founders: Daniel Pope, Pol Valls Soler
• Number of employees: 51-100
• Funding amount: $17,162,363
• Number of funding rounds: 4
• Number of investors: 3

You can find their website here.

18) Sonnedix

Sonnedix Solar is a global power company focused to generating future low-carbon solar energy.

Details of the startup:

• Country: France
• City: Rennes
• Started in: 2009
• Founders: Andreas Mustad, Pablo Pulido Mendoza
• Number of employees: 51-100
• Funding amount: $562,958,154
• Number of funding rounds: 3
• Number of investors: 2

You can find their website here.

19) Ecozen

Ecozen is a perishables technology firm that enables the Farm-To-Fork value chain.

Details of the startup:

• Country: India
• City: Pune
• Started in: 2010
• Founders: Devendra Gupta, Prateek Singhal, Vivek Pandey
• Number of employees: 101-250
• Funding amount: $8,710,380
• Number of funding rounds: 7
• Number of investors: 6

You can find their website here.

20) GoParity

Personal finance and investing tool that links individuals and businesses with nonprofits seeking financing for sustainable projects.

Details of the startup:

• Country: Portugal
• City: Lisbon
• Started in: 2017
• Founders: Nuno Brito Jorge
• Number of employees: 1-10
• Funding amount: € 900,000
• Number of funding rounds: 5
• Number of investors: 2

You can find their website here.

21) NAWA Technologies

NAWA Technologies, a French SMEs, has created a novel, cost-effective Ultra-Fast Carbon battery using nanotechnology.

Details of the startup:

• Country: France
• City: Rousset
• Started in: 2013
• Founders: Ludovic Eveillard, Pascal Boulanger
• Number of employees: 11-50
• Funding amount: € 24,500,000
• Number of funding rounds: 3
• Number of investors: 11

You can find their website here.

22) H3 Dynamics Holdings

H3 Dynamics is a subscription-based AI and robotics company that monitors public and private structures and places throughout the world.

Details of the startup:

• Country: Singapore
• City: Singapore
• Started in: 2015
• Founders: Taras Wankewycz
• Number of employees: 11-50
• Funding amount: $18,250,000
• Number of funding rounds: 4
• Number of investors: 7

You can find their website here.

23) Sulapac

With biodegradable packaging innovation, Sulapac addresses the global plastic waste problem.

Details of the startup:

• Country: Finland
• City: Helsinki
• Started in: 2016
• Founders: Antti Parssinen, Laura Kyllönen, Suvi Haimi
• Number of employees: 11-50
• Funding amount: € 18,763,125
• Number of funding rounds: 5
• Number of investors: 11

You can find their website here.

24) Hardt Hyperloop

Hardt creates a system for commuting long distances that is fully emission-free, safe, and accessible to all.

Details of the startup:

• Country: The Netherlands
• City: Delft
• Started in: 2016
• Founders: Marinus Van Der Meijs, Mars Geuze, Sascha Lamme, Tim Houter
• Number of employees: 11-50
• Funding amount: € 6,850,000
• Number of funding rounds: 4
• Number of investors: 10

You can find their website here.

25) Empower

Empower uses blockchain technology to digitize waste streams and make them accessible to purchasers and auditors.

Details of the startup:

• Country: Norway
• City: Oslo
• Started in: 2018
• Founders: Carl Nesset, Gjermund Bjaanes, Wilhelm Myrer
• Number of employees: 11-50
• Funding amount: $2,094,097
• Number of funding rounds: 17
• Number of investors: 1

You can find their website here.

FAQs

Is CleanTech Business Profitable?

CleanTech business can be profitable depending on the specific business and its operations. The profitability of a CleanTech business can vary based on factors such as the size of the business, market trends, and the competitive landscape in the sector. 

Additionally, the level of investment and the type of technology used may also affect the profitability of a CleanTech business.

What Is The Average Investment In CleanTech?

The average investment in CleanTech varies widely depending on the specific type of CleanTech being developed and the amount of capital required to develop it. 

Generally speaking, investments in CleanTech can range from tens of thousands of dollars to hundreds of millions of dollars.