Windsail Capital

WindSail Capital Group is a Boston-based investment firm specializing in providing growth capital to companies focused on energy innovation and sustainability. Their investment strategy emphasizes flexible financing solutions that facilitate growth while minimizing dilution. WindSail typically invests in the form of secured loans, with amounts ranging from $2 million to $10 million. The firm’s notable investments include Ubees, a precision beekeeping and pollination services provider, and Axiom Cloud, which focuses on refrigerant leak detection software. Other significant portfolio companies are WeatherFlow-Tempest, which offers advanced weather stations, and Genera, a biomass supply company for the pulp and packaging industries. WindSail Capital operates predominantly within the clean energy sector, targeting industries such as energy storage, smart grid technologies, and renewable energy solutions. Their investment approach is characterized by deep industry expertise and a commitment to supporting underserved market segments. The leadership team, including Ian Bowles, Managing Director, leverages extensive experience and relationships within the energy sector to support portfolio companies effectively. This hands-on approach has enabled WindSail to maintain a robust and diverse investment portfolio, supporting companies that drive significant advancements in sustainability and energy efficiency​.