James Thomas, Partner at Thomas, McNerney & Partners, Stamford, Connecticut — verified investor profile. See sector focus and contact routes.
James E. Thomas is a co-founder and Partner at Thomas, McNerney & Partners, a healthcare venture capital firm he established in 2001 with Peter H. McNerney in Stamford, Connecticut. Before founding the firm, he headed Warburg Pincus LLC’s medical technology private equity practice and has invested in healthcare companies since 1992. The firm’s investment thesis targets life science and medical technology companies across all development stages, including seed, early-stage, growth capital, and restructuring transactions like spin-outs and roll-ups. Typical check sizes are not publicly specified, but the firm has led 16 of its 46 total investments as of 2019, indicating a willingness to lead deals. Notable portfolio companies include Invitae, VertiFlex, Torax Medical, and Zogenix, spanning diagnostics, medical devices, and pharmaceuticals. Thomas has served on the boards of over 20 public and private healthcare companies and also invests in the international shipping industry through Thomas Maritime and Ithaca Marine. No distinctive public writing or unique point of view beyond his healthcare and maritime focus is documented in available sources.
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