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MILFAM LLC operates as a private investment firm and dedicated family office, exclusively managing the financial assets of the Miller Family. The firm functions with institutional-grade investment infrastructure, employing internal strategies predominantly focused on achieving long-term capital appreciation. Its comprehensive operations include sophisticated middle and back-office systems that support a diverse range of investment activities.
The firm's lineage traces back to Lloyd Miller Jr., who established the family fortune through active investing beginning in the 1940s. His son, Lloyd Miller III, assumed management of these investments around 1990, formally establishing MILFAM as the family's dedicated office in 1996. The Miller family's investment tradition persists under experienced non-family management, operating from its base in Stuart, Florida since its inception.
MILFAM's primary objective is to serve the financial interests of current and future generations of the Miller family, ensuring sustained growth of their capital. Beyond direct investment management, the firm leverages its established infrastructure and relationships to provide broader support to family members regarding financial and legal affairs. It remains committed to securing enduring prosperity for its family stakeholders.
MILFAM has 2 tracked investments across 2 companies. The latest tracked deal is $22.0M Other Equity in General Fusion in August 2025.
| Date | Company | Round | Lead Investor(s) | Co-Investor(s) |
|---|---|---|---|---|
| Aug 21, 2025 | General Fusion | $22.0M Other Equity | — | Chrysalix Energy Venture Capital, Gaingels, Hatch, JIMCO, David Barr, Presight Capital, Adam Rodman, Thistledown Capital |
| Mar 1, 2023 | Type One Energy | $29.0M Seed | Breakthrough Energy Ventures, TDK Ventures, Doral Energy Tech Ventures | Alumni Ventures, Amazon Climate Pledge Fund, Axiom Partners, C2 Investment, E1 Ventures, Manutara Ventures, Mayfield, Prelude Ventures, Prosperity7 Ventures, Race Capital, SeaX Ventures, Social Capital, SOSV, Sparklabs Group, Trajectory Ventures, Transpose Platform, Uncork Capital, George Godula, Matt Turk, Sahin Boydas, Darco Capital, Grantham Foundation, Orbia Ventures, Shorewind Capital, Trirec, Vahoca |