Jefferson River Capital is the single-family office of Hamilton E. "Tony" James, based in New York, NY. The office manages roughly $2.5 billion in assets and invests across public and private markets, including a dedicated corporate private equity capability and an active real estate investment function. Its internal corporate private equity team executed a 2022 spinout to form Madison River Capital, and the office has completed senior hires to build its real estate platform. Senior personnel include a named chief investment officer and a managing partner responsible for private equity, alongside a head of real estate. Jefferson River Capital deploys capital on a family-office basis across public equities, private equity and real estate opportunities and has demonstrated the ability to incubate and spin out investment teams. The office is distinctive as the private investment vehicle for a long-tenured financial executive with an in-house private equity team and a staffed real estate function, enabling both direct family-office investments and the incubation of external managers.