CapStone Holdings

CapStone Holdings

Keith J. Stone established the predecessor vehicle CSI Kickstart in 2016 before rebranding to CapStone Holdings in 2019 following the CSI Enterprises exit. Stone had built CSI over three decades into a global fleet and payments business with operations across Latin America, Asia, and Africa. The family office now serves as the primary vehicle for deploying proceeds from that transaction. CapStone allocates across real estate, private equity, private credit, and venture investments. It executes direct co-investments and SPVs alongside selected partners. Confirmed holdings include Structurely, Perrone Robotics, City Foundry STL, and positions in Curaleaf and Ilera Healthcare. The firm maintains exposure in North America and Oceania through residential and mixed-use projects in Florida, Missouri, Minnesota, Australia, and additional markets. The office lists twelve professionals on its site with roles spanning investments, operations, sports, and entertainment. CapStone maintains philanthropic vehicles including GameAbove Giving and the 1STONE Foundation. In 2024 the firm acquired Structurely, an AI sales-automation platform, and continued oversight of Perrone Robotics autonomous-shuttle operations in Detroit. CapStone integrates operating-company experience from the CSI sale into its investment process. The same principals who scaled a payments business now apply direct governance to portfolio companies in autonomy, real estate, and sports franchises rather than relying solely on external managers.