Old Mission Investment Company

The firm was established by John H. N. Fisher to manage the proceeds from the sale of a healthcare services business he founded and led. Fisher maintains a hands-on role in investment decisions, bringing his operational experience in healthcare to the family office's strategy. The office has not publicly named additional investment partners.

The wealth originated from a liquidity event in the healthcare services industry, where Fisher held a significant operating and ownership role. The proceeds of that transaction formed the permanent capital base that Old Mission Investment Company now deploys. The firm does not manage outside capital.

The firm runs a concentrated, multi-asset strategy spanning direct private equity, venture capital, and real estate. In private markets, it targets control and minority equity positions in healthcare, enterprise software, and fintech companies with established revenue models. Its real estate activity is weighted toward value-add and core-plus properties in coastal US cities.

The office strongly favors direct investments and selective co-investments alongside trusted sponsors over broad fund commitments. When it does partner with external managers, it typically does so on a deal-by-deal basis rather than through blind-pool funds, maintaining high conviction and low fee drag across the portfolio.

Fisher's background as an owner-operator distinguishes the firm from family offices run by career wealth advisors. The firm evaluates private equity opportunities through the lens of a former healthcare CEO, emphasizing operational value creation and strategic partnership rather than financial engineering alone. Its permanent capital structure also removes the deployment pressure that defines most institutional fund managers.