Weston Presidio Capital

Michael Cronin, Michael Lazarus and Mark Bono have served as managing partners since the firm's founding in 1991. All three were principals in the buyout of Bank of Boston's venture portfolio that created the firm, and they operated as a collective investment committee rather than the traditional single-CIO model common among middle-market buyout shops. Investment decisions required consensus across the partnership.

The firm was formed in 1991 when Cronin, Lazarus and Bono led a spinout of Bank of Boston's existing venture capital portfolio. Rather than building a firm from a blank sheet, the founders started with an active book of portfolio companies and limited partner relationships. This structure gave Weston Presidio an immediate track record and deployment base that most first-time fund managers lack, and it insulated the firm from the fundraising challenges that typically define a private equity firm's earliest years.

The firm focused on middle-market growth equity and buyout transactions, with equity commitments typically ranging from $25 million to $75 million per deal. Target companies generally had $10 million to $50 million in annual EBITDA. Weston Presidio executed both control buyouts and significant minority recapitalizations, maintaining flexibility to structure around founder and management-team preferences rather than imposing a single deal template.

The firm has not publicly announced a new fund since closing Fund V in 2005. By the mid-2010s, Weston Presidio transitioned away from active fundraising and new platform investments, moving to a portfolio-management posture typical of a mature fund family nearing the end of its natural investment lifecycle. No successor vehicle or rebranded platform has been launched by the managing partners.

The firm avoided early-stage venture capital, real estate and financial services, concentrating instead on business services, specialty manufacturing, consumer products and healthcare services. This generalist-but-disciplined approach reflected a belief that middle-market operational improvement opportunities were more predictable in industries with tangible assets, recurring revenue and fragmented competitive landscapes than in technology or regulated sectors.

Weston Presidio typically led or co-led transactions rather than participating as a passive co-investor alongside larger sponsors. The firm's middle-market focus meant it often served as the sole institutional equity partner for founder transitions and family-business recapitalizations. Limited partners were occasionally invited to co-invest on larger transactions, but the firm did not maintain a standing co-investment program or club-deal syndicate.