Mark Castleman is a Partner at Mistletoe, Inc., a global impact investment fund founded by Taizo Son, where he focuses on supporting founders and transformational ideas and companies with capital and operational expertise. He is also a Partner at Capital Factory, the central US’s most active startup fund, incubator, and accelerator located in Austin, Texas.

Mark was previously SVP of Strategy as well as an investor, Board Member at CerebriAI, an M12 (Microsoft Ventures) backed company. Other prior roles include VP of Corporate Strategy at Avaya and EIR at Bell Labs/Nokia, where he founded Future X Labs while even earlier Mark founded four different startup companies, raised funds for them and sold two. Mark resides in the San Francisco Bay Area and was formerly a long-time resident of Austin, Texas where he studied Architecture, and is a graduate of the University of Texas, Austin.