Ian Rountree is a General Partner at Cantos, an investment firm where he focuses on being a 1st check investor. His investment philosophy is encapsulated by the sentiment, "Precious things have been put into our hands, and to do nothing to honor them is to do great harm."

Beyond his role at Cantos, Rountree is actively involved with several companies in board and observer capacities. He serves as a Board Member for Earth Ai, Salient Motion, and Atomos Space.