WindSail Capital Group

WindSail Capital Group, LLC is a private equity and venture capital firm based in Boston, Massachusetts, established in 2013. The firm specializes in providing growth capital to companies focused on energy innovation and sustainability across various industries. WindSail offers a range of financing solutions, including senior secured loans, junior secured loans, stretch loans, and bridge loans, primarily targeting U.S.-based businesses. With an investment strategy that emphasizes flexible financing options, WindSail aims to support companies that are either revenue-generating or in the early stages of commercial development. The firm typically invests equity ranging from $2 million to $8 million and debt from $2 million to $10 million, ensuring its portfolio companies have the necessary resources to facilitate growth while minimizing equity dilution.

Ian Bowles

Co-Founder and Managing Director

Andrew Chang

Vice President

Jessica Hart

Principal

Matthew O'Rourke

Vice President

Past deals in Weather

Weatherflow

Venture Round in 2024
WeatherFlow Inc. is a leader in the private sector weather industry, with over two decades of experience in applying the latest in observational, modeling, and forecasting technology to its clients’ most challenging problems. WeatherFlow continues to maintain and improve these offerings going forward, with particular emphasis on the National Mesonet, wind energy, and the development of applications for mobile devices.
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