Greg is co-founder and CEO of USBC and majority shareholder of nationally chartered Vast Bank. As an investor, Greg provided first money at Twitter, Square (Block), Coinbase, Robinhood, and Solana. Other early investments include Ripple, Uphold, and Brave. Recently, Greg made a controlling investment in OCC nationally-chartered Vast Bank.

After working at consulting firm Booz Allen Hamilton, Greg took his first company public on the NASDAQ in the 90s. He later served in the payments division of the Federal Reserve and as a director at Promontory Financial Group. Greg also served as Chief Risk Officer at Ripple. Greg graduated from Brown University and earned an MBA from Yale University and an MPA in public policy from Harvard’s Kennedy School.

In 2024, Greg was a nonpartisan candidate running for Congress in Nevada's 2nd District.