Fabian Heilemann is co-founder and CEO of AENU, a Berlin-based impact tech fund he founded with his brother Ferry in 2022. See contact routes.
Fabian Heilemann is co-founder and CEO of AENU, a Berlin-based impact tech fund he founded with his brother Ferry in 2022; he is also described as a venture capitalist, serial entrepreneur, and impact investor. AENU says it backs climate-tech and social impact companies, with one description specifying seed and Series A focus in the energy transition and carbon economy, and another saying it invests in climate-tech and social impact companies in the EU and US. Public descriptions place its typical initial check size at about €0.5 million to €5 million, and AENU has described itself as multi-stage, though other sources emphasize early-stage investing. Named portfolio companies mentioned publicly include Heirloom, Labster, INFARM, Monta, zolar, ZeroAvia, Next Gen Foods, XFuel, Tesvolt, Charm, and Voltfang. Heilemann has said AENU is aiming at decarbonization and social equality, with a focus on sectors such as energy efficiency in buildings, heavy-industry decarbonization, battery software, and energy management. He also frames the fund as “evergreen” or impact-oriented in public writing and interviews, and has highlighted a value-add approach an
StartupFundraising tracks this investor record from SEC filings and announced rounds, updating focus, location and portfolio history as new data lands. Use it to gauge fit before an outreach, then widen the search to investors in Berlin.
Investors like Fabian Heilemann · Full investor directory · Investor access · Company funding database
The Startup Fundraising Platform
Raise funds for your startup
Find the right investors and get real replies — instantly, powered by AI.
Takes 30 seconds · No credit card · Cancel anytime
Slide-by-slide guide