Paul Deninger (born August 3, 1958, in Stoughton, MA) is an American technology industry entrepreneur, board member, investment banker, and venture capitalist.

A leading independent investment bank, the firm became a major player serving the technology industry during his tenure.

[1] As of 2024, Deninger is an Operating Partner at Material Impact, a venture firm that invests in deep tech companies.

He advises a broad range of the fund's portfolio companies in such areas as material science, sustainable manufacturing, robotics and space technology.

[13][14][15] Material Impact was founded by Adam Sharkawy and Carmichael Roberts, who is also chairman of the investment committee of Bill Gates’s Breakthrough Energy Ventures.