RidgeLake, a strategic partnership between OA Private Capital and Apogem Capital, completed a minority investment in Gridiron Capital, a middle market private equity firm. Financial terms were not disclosed. "We've been working with RidgeLake's advisers for years, and they uniquely understand our team culture and differentiation in the middle market. We are well-aligned and share the same long-term vision for Gridiron. We look forward to leveraging their strategic resources and expanding our relationship even further through this partnership," Kevin Jackson, Gridiron Managing Partner.