Santiago Rey is Managing Partner and co-founder of Diagonal Investment Office. See contact routes.
Santiago Rey is Managing Partner and co-founder of Diagonal Investment Office, a Miami-based multi-family office backed by Sanctuary Wealth and launched in December 2022 to serve Latin American ultra-high-net-worth clients. Public descriptions emphasize investment advisory and portfolio management for high-net-worth families rather than a classic venture or private-equity model, and Rey has said the firm’s main focus is investment advice. The available sources do not verify a formal stage or sector thesis, nor do they provide specific geography or lead/follow criteria beyond its Latin America focus and clients in Peru, Ecuador, Mexico, and Miami. They also do not disclose typical check size or whether he leads or follows deals. No named portfolio companies are publicly verified in the sources reviewed. Rey has highlighted portfolio construction and “optimal, well-managed portfolios,” but the sources do not show regular public investing writing beyond brief interview comments and firm posts.
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