Longworth Venture Partners

Longworth Venture Partners is a venture capital firm founded in 1999 by Jim Savage and Paul Margolis, based in Waltham, Massachusetts. The firm backs passionate entrepreneurs pursuing breakthrough ideas in emerging technology markets, with a track record across systems and infrastructure, business and consumer internet, and digital media. Longworth has raised three funds and typically invests $2 million to $3 million per company, though the firm is comfortable with seed commitments as low as $250,000 or growth investments up to $4 million. General Partner Nilanjana Bhowmik, who joined in 2004, and Peter Roberts round out the investment team. Atlas Venture is a frequent co-investor. The firm has invested in 55 companies across enterprise software, data analytics, retail technology, healthtech, and media sectors, primarily in the United States with selective investments in India and Israel. The portfolio has generated 1 IPO and 37 acquisitions. Notable exits include Constant Contact, the email marketing platform that went public; RapidMiner, a data science tool acquired in September 2022; Applause, an app testing platform; Hospital IQ, a healthcare operations system; and Sermo, a physician professional network. Longworth was also an early backer of GoDaddy. Other portfolio companies include Mobiquity, NuoDB, Moodlerooms, and Creative Market. Longworth leads rounds and emphasizes a partnership model that extends well beyond initial capital — helping companies navigate market positioning, hiring key executives, and building strategic relationships as they move from early traction toward category leadership. The firm's most recent investment was NuoDB in December 2018, and it appears to be in a harvest phase focused on its existing portfolio rather than making new commitments.