Top list · Worldwide
36 waste to energy startups worldwide have raised money in rounds we track. These are the 36 that have raised the most, $1.3B between them, with the United States the most common home.
Wildfire Energy is an Australian cleantech startup focused on converting residual waste into renewable energy, hydrogen, and sustainable fuels using its proprie
Founded 2016Petrie Terrace, United States$604Mlast round Jul 2026EcoCeres is a global leader in renewable fuels and green molecules, focusing on converting 100% waste-based feedstocks into sustainable energy.
Founded 2008Hong Kong SAR China$400Mlast round Jan 2023Andion Global is a platform for waste-to-renewable energy that creates biogas projects in all their forms.
Founded 2017Luxembourg, Luxembourg$79Mlast round Feb 2026East Rockingham Waste to Energy is a power station that converts waste into sustainable energy.
Founded 2019Rockingham, Australia$39Mlast round Dec 2019Hydrogen assisted molecular recycling (HAMR) allows waste to be converted into chemicals for building products and fuels.
Founded 2020Melbourne, Australia$32Mlast round Jul 2026FORGE Hydrocarbons is a Canadian renewable energy company founded in 2012, originating as a spin-off from the University of Alberta.
Founded 2012Oakville, Canada$23Mlast round Feb 2020XL Batteries develops a technology platform to reduce waste formation.
Founded 2019Brooklyn, United States$21Mlast round Jul 2026EverGen acquire, develop, build, own and operate a portfolio of Renewable Natural Gas, waste to energy, and related infrastructure projects.
Founded 2020Vancouver, Canada$13Mlast round Jan 2026EcoSync is a cleantech company founded in 2018 by a team of engineers from Oxford University.
Founded 2018London, United Kingdom$11Mlast round Jun 2026Vertus Energy is a deep-tech industrial biotechnology startup based in Vienna, Austria, with operations in Auckland, New Zealand.
Founded 2021Vienna, New Zealand$9.4Mlast round Jul 2024WASE is a UK-based climate technology and environmental services company located in Bristol.
Founded 2017Bristol, United Kingdom$9.4Mlast round Mar 2024Biogen Gwyriad operates anaerobic digestion plants which recycle food waste to generate renewable energy and biofertilisers for farmland.
Founded 2005Bedford, United Kingdom$9.3Mlast round Jul 2012ElectraTherm is an American technology company based in Flowery Branch, Georgia, specializing in waste heat-to-power generation systems.
Founded 2005Oakwood, United States$8.0Mlast round Nov 2009Kew Technology is a consulting firm that provides waste-to-energy technology development solutions for project construction.
Founded 2016Birmingham, United Kingdom$7.6Mlast round Jul 2023Ki 13 is a deep-tech venture that develops waste-to-hydrogen technology.
Founded -London, United Kingdom$5.0Mlast round Sept 2026Tribosonics is a Sheffield-based company founded in 2006 that specializes in ultrasonic and embedded sensing technologies.
Founded 2006Sheffield, United Kingdom$3.9Mlast round Oct 2023Hughes Energy Group is a green tech, fiber production company providing a low-carbon solution to recycling organic waste.
Founded -Yonkers, United States$3.7Mlast round Jul 2025MediSun Energy is a Singapore-based company that specializes in integrated brine management and clean-energy technology.
Founded 2023Singapore, Singapore$3.2Mlast round May 2025Transitional Energy brings geothermal technology to the oil and gas industry to generate clean, baseload power from heat waste.
Founded 2020Aurora, United States$2.5Mlast round Jan 2022EnMass Energy is a digital software and procurement platform designed for waste-to-energy and waste-to-value projects.
Founded 2015Durham, United States$2.2Mlast round May 2021Cancrie Private Limited is a clean-tech and advanced materials startup founded in 2020 by Akshay Jain and Mahi Singh, based in Jaipur, Rajasthan, India.
Founded 2020Jaipur, United States$1.2Mlast round Jan 2025Griffin Refineries is a developer of waste refining technologies designed to convert the energy content of the waste into a useful form.
Founded 2016Helsinki$1.1Mlast round Oct 2016Nrlyze is a Stockholm-based startup founded in 2020 that offers an AI-driven energy optimization platform aimed at reducing waste in building heating systems fo
Founded 2020Stockholm, Sweden$1.0Mlast round Aug 2025Ento is a Denmark-based AI-powered SaaS company founded in 2019, focused on optimizing energy consumption and eliminating energy waste for building portfolios.
Founded 2019Aarhus, Denmark$891Klast round Jun 2025WoodChuck.ai is a climate-impact startup located in Grand Rapids, Michigan.
Founded 2023Grand Rapids, United States$834Klast round Sept 2026The Heat Vault Company is a privately held Anglo-Swedish cleantech startup founded in 2021.
Founded 2021Newcastle upon Tyne, United Kingdom$660Klast round Sept 2024Clean tech company developing and designing waste to energy and waste to chemical projects using organic waste as raw material.
Founded 2016United States$660Klast round Feb 2015EcoNomad Solutions is a UK-based agritech startup founded in 2018, located in Harpenden, Hertfordshire.
Founded 2018London, United Kingdom$642Klast round Aug 2026Straw Innovations Ltd is an agri-tech and environmental services company dedicated to rice straw management in Asia, particularly in the Philippines.
Founded 2016London, United Kingdom$610Klast round Dec 2023Future Greens is a Sheffield-based startup focused on innovative waste-to-energy solutions.
Founded 2022Sheffield, United Kingdom$456Klast round Dec 2025ZPE Ltd is a UK-based startup and independent original equipment manufacturer specializing in energy recovery systems.
Founded 2018Caldicot, United Kingdom$421Klast round Dec 2022Metzev is a sustainable energy company based in Atlanta, Georgia, specializing in second-life electric vehicle (EV) battery distribution and energy storage solutions.
Founded 2023Atlanta, United States$320Klast round Mar 2024ZiTechnologies provides technology development to treat and clean plastic waste.
Founded -Hancock, United States$256Klast round Jul 2021Vortechs is an environmental technology company specializing in advanced recycling and waste-to-energy solutions.
Founded 2021Layton, United States$250Klast round Jul 2022Enterprise utility management platform that helps companies cut energy waste and up to 30% in operational costs
Founded -Mexico City, Mexico$180Klast round May 2025NextPotential is a waste-to-fuel clean energy company that develops and licenses process technology to convert carbon dioxide (CO2) emissions into natural gas a
Founded 2014Scottsdale, United States$48Klast round Jan 2014Companies whose own description names this theme, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.
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RPHealth startups worldwide12,811 companies · $81B
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XAI startups worldwide10,238 companies · $830B
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RPBiotech startups worldwide7,127 companies · $70B
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FTBig data startups worldwide3,812 companies · $220BAF
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SFintech startups worldwide3,200 companies · $94B
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BAI startups that raised in 20262,922 companies · $540B in 2026
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PEnergy providers startups worldwide2,808 companies · $152B
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OMarketing tech startups worldwide2,728 companies · $28B