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 727 start-ups with an aggregate funding of $20.6b. The average funding per company in this subset is $298.8m.
Last update to the database: Feb 18, 2025. See changelog.
Amentum is a technical and engineering services partner working with the United States defense, security, intelligence, energy, and environmental programs.
1
Funding Rounds
Helion Energy is a fusion power company aiming to build the world's first fusion power plant.
6
Funding Rounds
$577.8m
Money raised
Pasqal is a company building programmable quantum simulators and quantum computers made of 2D and 3D arrays of neutral atoms.
5
Funding Rounds
$140.5m
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
$2.1b
Money raised
Pacific Northwest National Laboratory (PNNL) is a research laboratory that aims to advance scientific discovery in the fields of data science, biology, and Earth sciences for the US government and the private sector.
1
Funding Rounds
Singularity University is a startup accelerator focusing on commercializing technologies developed in research facilities.
5
Funding Rounds
$32.0m
Money raised
Linknovate is a data analytics and competitive intelligence scouting platform.
5
Funding Rounds
$2.5m
Money raised
LightSail Energy was a Berkeley, California based company developing above-ground compressed air energy storage (CAES) systems
4
Funding Rounds
$46.9m
Money raised
Northvolt develops sustainable lithium-ion batteries in conjunction with R&D, industrialization, and recycling to support clean energy.
12
Funding Rounds
$6.9b
Money raised
Arundo provides software to enable advanced analytics in industrial companies. Arundo's customers transform their businesses through predictive analytics, deeper understanding of physical operations, and data-driven SaaS applications.
5
Funding Rounds
$73.7m
Money raised
BlocPower is a Brooklyn-based provider of a platform for energy efficiency and management for commercial and residential buildings.
11
Funding Rounds
$262.6m
Money raised
Workrise is a workforce management solution for skilled trades.
6
Funding Rounds
$693.8m
Money raised
Developer and manufacturer of systems for renewable industrial gas and fuel production.
13
Funding Rounds
$779.0m
Money raised
A New Zealand industrial biotechnology company developing a gas fermentation platform for converting concentrated industrial emissions into valuable chemicals.
6
Funding Rounds
$265.4m
Money raised
Taiwanese-based venture-backed company that develops and sells electric scooters and battery swapping infrastructure
1
Funding Rounds
$300.0m
Money raised
Net Power is a Durham, North Carolina-based natural gas electricity producer using carbon capture and storage to maintain zero emissions production.
4
Funding Rounds
$150.0m
Money raised
Steelhead LNG is a Vancouver-based energy company focused on LNG project development in British Columbia.Our experience includes guiding some of the world's leading energy companies and projects with commercial and technicalexpertise that spans the entire LNG value chain.
1
Funding Rounds
Nuclear fusion start-up in Europe researching high-temperature superconductors to simplify the construction of Stellarator devices as well as other applications in medical imaging.
1
Funding Rounds
$16.0m
Money raised
A long-range wireless charging technology company. It is located in Oakland, California and was founded in 2015.
3
Funding Rounds
$39.1m
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.
5
Funding Rounds
$40.4m
Money raised
EcoFactor is a cloud-based home energy management platform providing services to utilities and home service providers.
7
Funding Rounds
$41.0m
Money raised
A technology manufacturing company making Li-Metal materials, cells, and packs for drones, consumer electronics and automotive applications.
1
Funding Rounds
$34.0m
Money raised
Arcadia, previously Arcadia Power, is a Washington, D.C. based tech company which aims to enable a zero-carbon economy. Arcadia is also the developer of a clean energy tech platform designed to facilitate access to clean energy.
5
Funding Rounds
$264.5m
Money raised
A biotechnology company that specialized in the renewable energy sector. It was located in Bedford, Massachusetts and is no longer in operation.
5
Funding Rounds
$225.0m
Money raised
Carbon Recycling International is a Kópavogur-based carbon capture company producing methanol for use as an alternative fuel source.
9
Funding Rounds
$1.2m
Money raised
All Power Labs is a Berkeley, California-based biogas company developing biogas generators for distributed energy needs.
1
Funding Rounds
$4.0m
Money raised
A company making Sustainable Aviation Fuel (SAF) as an alternative to using fossil fuels for air crafts. It was founded in 2008 and is located in Amsterdam, the Netherlands.
1
Funding Rounds
$190.0m
Money raised
A company that was developing an advanced technology mini nuclear reactor, based on intellectual property developed by scientists at Los Alamos National Laboratory. It was located in Denver, Colorado.
2
Funding Rounds
$12.9m
Money raised
ClearTrace is an Austin, Texas-based energy data and carbon accounting platform offering a digital infrastructure to support decision-making to mitigate environmental risk, prove climate achievements, and create market opportunities.
2
Funding Rounds
$24.0m
Money raised
Synhelion is a technology company converting solar energy, waste carbon dioxide, and water into synthetic fuel.
1
Funding Rounds
$17.0m
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.
1
Funding Rounds
$20.0m
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.
4
Funding Rounds
$12.2m
Money raised
ESS Inc. is a Wilsonville, Oregon-based developer and provider of long-duration energy storage solutions, including flow-batteries, for utility, microgrid, and off-grid applications.
4
Funding Rounds
$46.2m
Money raised
Flyability is a designer and manufacturer of drones for inaccessible places.
11
Funding Rounds
$50.2m
Money raised
Tandem Technical is an Ottawa-based carbon capture and storage company working on recycling carbon into mineral by-products.
2
Funding Rounds
$647.3k
Money raised
A drone mapping company offering aerial drone mapping software.
2
Funding Rounds
$4.5m
Money raised
StoreDot is an Isreal-based company focused on developing EV battery charging tools and technology.
7
Funding Rounds
$226.5m
Money raised
Dexter Energy is an Amsterdam-based company developing an AI tool for energy forecasting as a service to reduce costs on the electricity grid.
2
Funding Rounds
$13.7m
Money raised
A nuclear energy company making a stable salt reactor.
1
Funding Rounds
$7.5m
Money raised
Nexperia is a Nijmegen-based company founded in 2017.
1
Funding Rounds
$14.7m
Money raised
SeeO2 Energy Inc. is a Calgary-based carbon capture and storage company converting capture carbon dioxide into fuels and chemicals.
2
Funding Rounds
$158.0k
Money raised
Copper Labs is a California-based company that makes wireless electricity consumption devices
5
Funding Rounds
$10.5m
Money raised
A company developing its own petawatt class and high energy laser system coupled with a sophisticated target physics infrastructure exclusively dedicated to commercial "neutron-lean" fusion energy.
2
Funding Rounds
$39.0m
Money raised
Developer of technologies for enhancing PV efficiency, including new cell wiring and wafer packaging systems.
5
Funding Rounds
$70.6m
Money raised
Sila Nanotechnologies is an Alameda, California-based company engineered materials company focused on improving energy storage.
4
Funding Rounds
$875.0m
Money raised
Sense is a Cambridge, Massachusetts-based developer and distributor of energy tracking and automation solutions. Sense specializes in tracking devices and home automation solutions for its customers.
5
Funding Rounds
$162.0m
Money raised
Peak Power is the developer of an AI-based energy optimization software designed to serve building owners, project developers, and utilities.
1
Funding Rounds
$35.0m
Money raised
Autogrid Systems is a Redwood City, California-based developer of solutions for organization of energy data, energy analytics, and real-time predictions for actionable energy data.
8
Funding Rounds
$158.8m
Money raised
Epirus is an El Segundo, California-based technology company founded by Max Mednik.
5
Funding Rounds
$574.6m
Money raised
Edgehog is a Montreal-based company that makes omni-directional anti-reflection (OAR) glass, mainly for use in solar panels.
2
Funding Rounds
$1.9m
Money raised
Tachyus is a company founded in 2014 by Dakin Sloss, Paul Orland, Joel Moxley, Francisco Leport and Pallav Sarma.
6
Funding Rounds
$39.3m
Money raised
Zūm is a company that partners with schools to provide transportation for children.
9
Funding Rounds
$409.0m
Money raised
Jungle AI helps improve the performance of electrical assets with tailored AI models.
2
Funding Rounds
$8.9m
Money raised
Skeleton Technologies is a Tallinn-based energy storage company developing energy storage technology and solutions.
6
Funding Rounds
$61.7m
Money raised
Form Energy develops and commercializes a low-cost battery system that can store wind and solar energy for a long duration.
5
Funding Rounds
$679.2m
Money raised
Go Eve is an innovations to accelerate the transition to EVs founded in 2021 by Robert Shorten.
1
Funding Rounds
$3.8m
Money raised
BrightSource Energy is an Oakland, California-based company founded in 2006 by Arnold Goldman.
9
Funding Rounds
$812.4m
Money raised
Octopus Energy is a company that offers retail electricity and gas supplies, and specializes in sustainable energy.
6
Funding Rounds
$2.1b
Money raised
A software company that uses artificial intelligence to create products and services to make hotels into smart buildings. It is located in Singapore and was founded in 2016.
1
Funding Rounds
$2.7m
Money raised
FlexiDAO is a blockchain company founded by Simone Accornero in 2017.
3
Funding Rounds
$13.0m
Money raised
Enerkem is a Quebec-based company producing biofuels and renewable chemicals made from non-recyclable waste.
2
Funding Rounds
$302.7m
Money raised
Origami is a software development company focused on building DAO frameworks.
1
Funding Rounds
$6.2m
Money raised
OhmConnect is a company founded in 2013 by Curtis Tongue, Matt Duesterberg and Cadir Lee.
6
Funding Rounds
$72.0m
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
$67.1m
Money raised
Oasys Water was a company that developed water treatment and filtration products.
4
Funding Rounds
$20.0m
Money raised
Modular and compact unit that provides renewable energy and clean water in remote areas.
5
Funding Rounds
$2.1m
Money raised
Sonnen GmbH is a Wildpoldsried-based developer of management solutions for lithium based energy storage.
7
Funding Rounds
$240.2m
Money raised
Bloom Energy is a San Jose, California-based hydrogen fuel cell company offering on-site power generation systems.
1
Funding Rounds
$130.0m
Money raised
SOUNDBOKS is a company creating and marketing battery-driven speakers founded in 2015 by Jesper Theil Thomsen.
$13.0m
Money raised