Excession is the single-family office that manages Elon Musk’s personal wealth and related holdings. The firm is based in Austin, Texas and was established in 2016; Jared Birchall is identified as the office’s managing director. Excession operates as a private family office that holds concentrated equity stakes across Musk-related companies (including Tesla and SpaceX) and makes direct external investments rather than running a traditional external fund. Recent reporting characterizes the office’s real estate activity as operational infrastructure and notes a large, strategic land position of roughly 2,500 acres tied to a SpaceX project. Public reporting also indicates Excession writes external checks in a wide band (reported roughly $10 million to $500 million) and holds external investments for multiple years (reported median ~5 years). Distinctive attributes: the office combines stewardship of extremely large, concentrated operating-company stakes with the ability to make sizable direct investments and to hold strategic land positions that support founders’ operating strategies.