Another week, another cohort of founders raising capital across European impact.
Impact Loop has picked out the deals that caught our eye, together with their backers.
Software did most of the work this week, with five deals funding coordination layers on top of clean tech hardware. Public money was featured again: grants made up more than 80% of the second-largest deal on the list.
Let's get into it.
Tavion – €50m equity and debt
About: Tavion is a Stockholm-based battery park developer founded by Emad Zand, former CEO of Northvolt's battery systems division. It develops, owns and operates grid-scale storage in the 15 to 70 MW range. Katarzyna Suchcicka, who built OX2's Polish business, runs Poland.
Investors: €34m of equity led by Leitmotif and Oberon Capital, with existing backers BackingMinds and Course Corrected VC, plus €16m of debt.
What the money is for: Completing three Polish battery parks totalling 69 MW, breaking ground on the first two this month. The company has a 1.7 GW Polish pipeline that will need further financing.
BIOWEG – €14.3m in equity and grants
About: A German biotech founded in 2019 by Prateek Mahalwar and Srinivas Karuturi, BIOWEG uses precision fermentation to turn food-industry side streams into bacterial cellulose. The material replaces intentionally added microplastics in cosmetics, home care and seed coatings, ahead of EU restrictions.
Investors: Rabo Ventures, the investment arm of Rabobank, put in €2m of equity, extending last September's Series A to €18m. That arrived with €10.3m of non-dilutive EU funding via North Rhine-Westphalia's Produktives.NRW competition and €2m from other grants, taking total funding to €35m.
What the money is for: Around 60% goes to a first-of-a-kind plant on a sugar campus in Elsdorf, west of Cologne, with construction starting in the fourth quarter. Capacity is up to 10,000 tonnes a year, and the company expects around 30 jobs on site.
Tellia – €4.3m pre-seed
About: Telia is a voice AI assistant for agriculture, founded in 2024 by Coline Labadie de Faÿ and Vincent Trastour, who met at Entrepreneur First in Paris. Field teams log observations by phone call, voice note, WhatsApp or email, and the platform converts multilingual audio into records tied to a field, crop and crew.
Investors: Berlin-based Revent led, with Grey Silo Ventures, the corporate arm of Cereal Docks Group, plus Jeriko and Fund F.
What the money is for: An agentic layer connecting field data to the wider farm software stack, and hiring in the US and Europe.
MCatalysis – $5m seed
About: MCatalysis is London- and Dallas-based deep tech company turning offgas, plastic waste and biomass into drop-in fuels using microwave-driven catalysts, licensed exclusively from Oxford University Innovation. The company says the process skips the furnace heat and multi-stage plants conventional refining needs.
Investors: HL Energy Ventures and Oxford Science Enterprises led, supported by a $2.25m UK Research and Innovation award made with Queen Mary University of London.
What the money is for: Commercialising the process, targeting fuel production below commodity cost.
Rebaba – $4.6m seed
About: Rebaba is a Swedish startup founded in 2023 by Paula Runsten and Felix Kruse, both former Northvolt engineers, building stationary storage from retired EV batteries. Runsten says vehicle batteries are pulled from service with 70 to 80% of their useful life left. Distribution deals cover KP Energy and OKQ8 in Sweden, nanuq in DACH and Smartports in France.
Investors: Sistafund led with EIT Urban Mobility, alongside existing shareholders including Rockstart and The Blue Minds Company.
What the money is for: Lifting Stockholm output towards 40 MWh a year, four more hires on a team of 16, and CircularHub sites outside Sweden.
Loop reported a partial close at SEK 33m on 4 September, from Bolagsverket filings. Runsten would only say then that it was not the whole amount. It now is.
Furo – $4m
About: Furo is a Munich-based energy software company, formerly Lumera Energy, founded in 2025 by Lena Sophia Voß, Leonie Wagner and Simon Wittner. Its platform sizes, operates and trades commercial and industrial battery storage from 150 kW up, a segment it says aggregators skip in favour of portfolios above 10 MW. The company says over 3,500 sites are planned or optimised on the platform.
Investors: TQ Ventures led, with Neo, Sheryl Sandberg's Sandberg Bernthal Venture Partners and CDTM Venture Capital.
What the money is for: Software development, further European markets and hiring. It already operates in Germany, Austria, Switzerland and Spain.
FRYTE Mobility – €3.5m seed
About: FRYTE Mobility is another Munich-based startup founded in 2025 by Maximilian Zähringer, CEO, and Sebastian Wolff, CTO. Its platform sits between transport management systems and charge point management systems, letting electric truck operators book charging slots in advance across borders. Commercial partners include TRATON, Fraport and Energie Südbayern, and total funding is now €5m.
Investors: 4impact capital and Rethink Ventures co-led, with existing backers Revent, F-LOG and accilium ventures. Company filings show Revent owns 18.6% shares in the company, the largest outside stake.
What the money is for: Commercial scaling across Europe and deeper integrations with charge point operators. Wolff says the charging side is live and transport management is next.
Fusionality – €3.2m pre-seed
About: Fusionality is a Lausanne, Switzerland-based startup founded this year by Federico Felici, CEO, and Jonas Buchli, CTO, both formerly of Google DeepMind and EPFL's Swiss Plasma Center. It sells measurement, simulation and control systems to fusion developers rather than building a reactor.
Investors: Founderful and Playfair co-led. Playfair has also backed UK fusion-isotope startup Astral Systems.
What the money is for: Hiring control engineers, computational physicists and plasma measurement specialists in Lausanne, and landing first paying customers.
Gravity Gardens – €2.6m
About: Gravity Gardens is a Dutch startup agritech founded in 2024 by Paulino Valdes, CEO, and Robin Le Vigouroux, COO, developing dry, chemical-free seed activation. The technology derives from bioregenerative life support research under simulated planetary conditions. The company joined the European Space Agency's Dutch incubator in February 2025.
Investors: VP Capital, Brightlands Venture Partners and Graduate Ventures, plus undisclosed private investors. It follows earlier backing from StartLife and a Rabobank innovation loan.
What the money is for: Industrial-scale equipment and larger crop trials, with market readiness targeted during 2027.
Cosma – €2m
About: Cosma is a French startup founded in 2022 by Frédéric Mittaine, CEO, and Yannick Penneçot, incubated at marine research institute Ifremer. Swarms of autonomous drones work just above the seabed to depths of 200 metres, producing 3D photogrammetric maps and species identifications. Clients have included RWE, WWF and the French Navy.
Investors: Every existing backer reinvested beyond its pro rata, according to Invest in Côte d'Azur. Region Sud Investissement, Ring Capital and Sustainable Ocean Alliance joined.
What the money is for: Monitoring sensitive underwater infrastructure and autonomous inspection. Last year's round was pitched on marine biodiversity; this one leads on subsea security.