Underscore VC is a Boston-based venture capital firm founded in 2015, specializing in early-stage investments in B2B software startups at the pre-Seed and Seed stages. The firm is renowned for its hands-on approach to business building and its commitment to fostering a supportive community for entrepreneurs. Underscore VC has pioneered an open-source investing model, sharing profits with experts in their Core Community to align interests with founders.

This collaborative approach has led to investments in various sectors, including cloud cost intelligence, conversational platforms, and personalized retail experiences. Notable portfolio companies include CloudZero, Hi Marley, and Coda. In April 2024, Underscore VC closed its third fund at $58 million, slightly exceeding its initial target of $50 million.

The fund attracted 85 investors and marked a significant leadership transition, with Lily Lyman promoted to managing partner following the passing of co-founder John Pearce. The firm continues to focus on supporting bold entrepreneurs and building a strong community to underscore their success.