Sustainable Income Capital Management

Sustainable Income Capital Management

Sustainable Income Capital Management is a single-family office with offices in Brooklyn, New York, and New Haven, Connecticut. The firm's founding date and principals have not been publicly disclosed, and the wealth origin remains private. It operates with a lean structure typical of small to mid-sized family offices focused on income generation (public record). The firm invests across private credit, real estate, and infrastructure, targeting inflation-protected, yield-oriented assets. It participates in direct investments and co-investments, often alongside institutional partners, with a focus on middle-market opportunities. Geographic focus appears concentrated in the United States, with selective exposure to other developed markets (per public record). No recent operational events have been publicly reported for this firm in the last 24 months. Its team size and additional vehicles are not disclosed. The firm does not appear to maintain a public-facing philanthropic foundation or operating company (public record). A structural differentiator is the firm's explicit income-first mandate, which is relatively narrow for a family office—most diversify toward growth or multi-strategy allocations. The office may function as a single-purpose vehicle for a family with concentrated real-asset exposure, though this is inferred from its name and limited public footprint (Altss estimate).