Little Green Fund is a venture capital firm based in Tallinn, Estonia, founded by Andrus, Erki, and Karl. The fund focuses on supporting startups that offer sustainable solutions and can scale beyond early stages. With a mission to back companies that benefit the planet, it provides small checks for teams with ambitious plans and occasionally invests larger sums. Operating in the cleantech and greentech space, Little Green Fund seeks ventures with measurable environmental impact and strong execution ability.
Investment strategy centers on early-stage rounds up to €50,000, positioning the firm in the angel and pre-seed arena. Its portfolio reflects interests in renewable energy, resource management, and circular economy approaches. Although headquartered in Estonia, the fund evaluates opportunities worldwide and welcomes co-investment collaborations. Founders bring hands-on entrepreneurial backgrounds and a track record in impact investing, guiding the selection of teams ready to tackle environmental challenges. Applications are reviewed via a dedicated Airtable link, and the fund maintains open channels for startups seeking capital.
Portfolio companies illustrate a broad range of clean technology and energy innovations. Fusebox delivers smart energy management systems for commercial buildings, while Up Catalyst produces carbon nanomaterials aimed at improving battery performance. VOK Bikes develops electric cargo bikes tailored for urban delivery, and PowerUP Energy Technologies builds hydrogen-based power generators that can store and release energy off grid. VOOL combines hardware and software for public electric vehicle charging, and Zerofy automates energy optimization in homes and small businesses. Hepta applies machine learning to spot faults in power grids. Though not all investments are devoted strictly to batteries, many support energy storage and cleaner power solutions.
