We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.
There are 620 start-ups with an aggregate funding of $9.0b. The average funding per company in this subset is $130.6m.
Last update to the database: Jun 24, 2025. See changelog.
1
Funding Rounds
$31.0m
Money raised
An online publishing platform used by amateur and professional writers. Membership fees are used to pay writers.
3
Funding Rounds
$2.9m
Money raised
Caban Systems is a Burlingame, California-based renewable energy and energy storage company developing modular energy storage platforms for critical infrastructure power needs.
1
Funding Rounds
$408.5k
Money raised
Urban Electric Power is a Pearl River, New York-based developer of a zinc manganese dioxide battery technology. The company was spun out of the CUNY Energy Institute in 2013.
5
Funding Rounds
$2.1b
Money raised
Commonwealth Fusion Systems is a Cambridge, Massachusetts-based research and development company developing fusion power systems based on ARC tokamak reactors.
5
Funding Rounds
$250.0m
Money raised
LiveU is a Hackensack, New Jersey-based broadcast company offering high quality live video streaming for television, online, and social media broadcasting.
6
Funding Rounds
$99.3m
Money raised
LevelTen Energy provides a clean energy procurement platform for midsize businesses and enterprises.
1
Funding Rounds
$13.0m
Money raised
Blue Origin is an American, privately-funded, aerospace developer and manufacturer that is interested in lowering the cost of spaceflight in order to explore the solar system
8
Funding Rounds
$175.0m
Money raised
Viridos is applying synthetic biology to microalgae for the production of products that address climate change and sustainability. Viridos is focused on producing algal biofuels and other sustainable resources from algae.
10
Funding Rounds
$28.5m
Money raised
Membrion is a Seattle-based clean technology company and developer of flexible ceramic ion exchange membranes capable of being used in wastewater cleaning and in energy storage solutions.
4
Funding Rounds
$487.0m
Money raised
Axios Media is a news media company known for its short-form articles. Axios Media was founded in 2016 by three former staff of Politico.
13
Funding Rounds
$779.0m
Money raised
Developer and manufacturer of systems for renewable industrial gas and fuel production.
10
Funding Rounds
$33.0m
Money raised
NEXT Energy Technologies is a Santa Barbara, California-based developer of photovoltaic coatings for window.
1
Funding Rounds
Pavegen is a London-based company founded by Laurence Kemball-Cook.
11
Funding Rounds
$142.5m
Money raised
DroneDeploy is a cloud-based software that allows drones to take images and 3D models at any altitude.
5
Funding Rounds
$40.4m
Money raised
Enervee is a company founded in 2010 by Hjalmar Branting, Iker Casillas, Aoife Ní Fhearraigh, Yhonastan Fabian, The Sxplay, Ujiie Naotomo, Robbie Grossman, Ingrid Gfölner, Moisey Uretsky, Don Epperson, Matt Service FBCS and Bhavesh M. Mehta.
1
Funding Rounds
$6.0m
Money raised
NewsGuard is a company developing a browser add-on that rates news sources on their credibility; the purpose is to fight misinformation and fake news.
10
Funding Rounds
$121.7m
Money raised
iUNU is a Seattle-based agricultural tech startup founded in 2013.
1
Funding Rounds
$14.5m
Money raised
VALOREM is a Bègles-based renewable energy company founded in 1994.
3
Funding Rounds
$27.8m
Money raised
Coreshell Technologies is engineering liquid-deposited nanolayer coatings for Lithium Ion Batteries.
4
Funding Rounds
$12.4m
Money raised
Nori is a company that hosts an open-source, blockchain-based market for purchasing carbon offsets.
3
Funding Rounds
$12.2m
Money raised
Capturing CO2 from the sky and re-selling it for 2x cheaper
7
Funding Rounds
$151.6m
Money raised
A carbon sequestration technology and bioplastics company based in Huntington Beach, California, founded in 2003, that uses their technology to capture carbon from greenhouse emissions for production of bioplastics.
7
Funding Rounds
$33.3m
Money raised
Liquid Light is a developer of technology to convert carbon dioxide to a variety of chemicals, fuels, and other compounds.
9
Funding Rounds
$119.5m
Money raised
Carbon Engineering is building technologies to capture CO2 directly from the atmosphere, and to use that CO2 in the synthesis of clean transportation fuels that displace crude oil.
9
Funding Rounds
$1.2m
Money raised
Carbon Recycling International is a Kópavogur-based carbon capture company producing methanol for use as an alternative fuel source.
2
Funding Rounds
$12.3m
Money raised
Origin is a San Francisco-based additive manufacturing company designed for mass production.
8
Funding Rounds
$77.3m
Money raised
DroneSeed is a Seattle-based company that provides automated reforestation services.
1
Funding Rounds
$4.0m
Money raised
All Power Labs is a Berkeley, California-based biogas company developing biogas generators for distributed energy needs.
2
Funding Rounds
$20.0m
Money raised
Zeno Power Systems is an Arlington, Virginia-based developer of a radioisotope power system intended to convert heat from recycled nuclear waste into electricity.
4
Funding Rounds
$138.8m
Money raised
Citizen is U.S-based company (legal name: sp0n, Inc.) developing a public safety mobile application.
1
Funding Rounds
$20.0m
Money raised
NovaSolix is developing rectifying carbon nanotube antennas that convert light to electricity from the entire solar spectrum as a method of producing clean and inexpensive energy.
4
Funding Rounds
$32.5m
Money raised
MIC is a Munich-based company founded in 2011 by Christopher Altchek.
4
Funding Rounds
$12.2m
Money raised
BluWave-ai is an Ottawa-based developer of software-as-a-service applications for optimization of sustainable and affordable energy systems and decisions.
2
Funding Rounds
$20.0m
Money raised
ZEG Power is a developer of modular energy generation technology, including hydrogen fuel production with carbon capture and storage systems to produce clean hydrogen with no emissions.
7
Funding Rounds
$695.0m
Money raised
Aurora Solar is a San Francisco-based developer of solar design, proposal, and sales software.
13
Funding Rounds
$126.5m
Money raised
An industrial biotechnology company that produces chemicals from renewable non-food sources
3
Funding Rounds
$10.9m
Money raised
A company with a local advertising platform. It was founded in 2006 and acquired by AOL in 2011.
9
Funding Rounds
$138.9m
Money raised
SkySpecs is a company founded in 2012 by Daniel Ellis.
2
Funding Rounds
$158.0k
Money raised
SeeO2 Energy Inc. is a Calgary-based carbon capture and storage company converting capture carbon dioxide into fuels and chemicals.
3
Funding Rounds
$51.3m
Money raised
Issuu is a company founded in 2006 by Martin Ferro-Thomsen, Ruben Bjerg Hansen and Michael Hansen.
1
Funding Rounds
Tech in Asia is a news company founded by Willis Wee.
2
Funding Rounds
$30.0m
Money raised
Algo is a Michigan-based company offering an AI supply chain platform. The company was acquired by Meltwater in August 2017.
3
Funding Rounds
Juhudi Kilimo provides asset financing, technical assistance, and business training services to farmers and agro businesses in Kenya.
3
Funding Rounds
$3.6m
Money raised
Enersion has developed a revolutionary new green technology that uses heat instead of electricity to produce cooling thereby saving on electricity consumption by over 70% compared to the conventional cooling technology.
3
Funding Rounds
$6.2m
Money raised
Alliance BioEnergy is a company founded in 2007.
4
Funding Rounds
$45.9m
Money raised
Ostrom is a digital green energy management platform founded in 2021 by Karl Villanueva.
1
Funding Rounds
BEAMSTART is a Startup Accelerator and online platform for Startup News, Business Networking, and Entrepreneurial Resources founded in 2016 by Kenneth Ho, Wallace Ho, and Benjamin Tan.
5
Funding Rounds
$679.2m
Money raised
Form Energy develops and commercializes a low-cost battery system that can store wind and solar energy for a long duration.
10
Funding Rounds
$64.5m
Money raised
Pexapark AG is a blockchain company founded in 2017 by Michael Waldner, Florian Müller and Luca Pedretti.
3
Funding Rounds
$16.0m
Money raised
Jellysmack is the global creator company that detects and develops the world’s most talented video creators.
23
Funding Rounds
$27.6m
Money raised
Management Sciences, Inc. (MSI) supports the needs of industry and government for sensors and intranets in the areas of prognostic health management, situation awareness, signals intelligence, AI, safety, and embedded systems.
6
Funding Rounds
$61.7m
Money raised
Skeleton Technologies is a Tallinn-based energy storage company developing energy storage technology and solutions.
12
Funding Rounds
$187.2m
Money raised
Oxford PV is a London-based developer of perovskite thin-film solar cells.
4
Funding Rounds
$239.2m
Money raised
Eavor Technologies Inc. is a Calgary-based geothermal technology company.
9
Funding Rounds
$812.4m
Money raised
BrightSource Energy is an Oakland, California-based company founded in 2006 by Arnold Goldman.
4
Funding Rounds
$7.1m
Money raised
A software company offering a low-code development platform for business operations.
2
Funding Rounds
$302.7m
Money raised
Enerkem is a Quebec-based company producing biofuels and renewable chemicals made from non-recyclable waste.
3
Funding Rounds
$51.0m
Money raised
A software company offering a collaboration platform for distributed teams.
5
Funding Rounds
$67.1m
Money raised
On a mission to stop climate change by making it easy and profitable for building owners to cut carbon emissions caused by wasted energy.
5
Funding Rounds
$2.1m
Money raised
Modular and compact unit that provides renewable energy and clean water in remote areas.
1
Funding Rounds
$32.0m
Money raised
Primus Power is an Hayward, California-based zinc bromine flow battery manufacturer.
3
Funding Rounds
$191.0m
Money raised
Miasolé is a thin-film solar producer founded in 2004.
5
Funding Rounds
$6.6m
Money raised
A technology company developing a tethered electric aircraft to produce energy from the wind.
12
Funding Rounds
$30.0m
Money raised
Silatronix is a Madison, Wisconsin-based company founded in 2007 by Robert Hamers and Robert West.
4
Funding Rounds
$25.7m
Money raised
Choose Energy is a Texas-based marketplace company offering clean technology and service to help consumers shopping for electricity and natural gas rates.
2
Funding Rounds
Involt is a company developing supercapacitor-based solutions for batteries founded in 2012.
3
Funding Rounds
$8.0m
Money raised
ReverbNation is a website that is meant to connect artists to the music industry
2
Funding Rounds
$18.3m
Money raised
Tagboard is a Redmond, Washington-based company founded in 2011.
1
Funding Rounds
$2.6m
Money raised
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