Madison Dearborn Partners

Co-CEOs Paul J. Finnegan and Samuel M. Mencoff manage daily operations and sit on the firm's investment committee. Chairman John A. Canning Jr., who co-founded the firm in 1992, remains actively involved in strategic decisions and key LP relationships. The firm's partnership structure concentrates authority among a small group of veteran managing directors, most of whom have been with MDP for over a decade.

MDP relies heavily on sector-dedicated teams that build multiyear relationships with founders, family-owned businesses, and corporate carve-out targets before formal sale processes begin. The firm's structured capital arm extends credit to middle-market companies, often serving as an early relationship-building tool that leads to control-equity opportunities. MDP's Chicago concentration and deep industrial expertise give it preferential access to Midwest-based manufacturing, distribution, and business-services companies that rarely appear in broad auction processes.

MDP's mandate is overwhelmingly North America-focused, with the vast majority of portfolio companies headquartered in the United States. The firm occasionally supports portfolio companies pursuing add-on acquisitions in Europe or Asia, but MDP does not maintain dedicated international investment teams or offices. LP materials and public filings consistently position it as a US-centric, generalist buyout manager.

MDP's structured capital platform provides senior debt, subordinated debt, and preferred equity to companies that fall below the equity fund's typical control-investment size threshold. Unlike the flagship buyout strategy, which targets majority ownership positions, structured capital deals are often minority or non-control investments with creditor protections. The strategy serves both as a standalone return driver and as a relationship-building tool that occasionally converts into full buyout opportunities.

John Canning remains chairman, but Paul Finnegan and Samuel Mencoff have held Co-CEO titles for over a decade, and the firm has promoted a generation of managing directors who sit on its investment committee. MDP has not publicly disclosed a formal succession plan, but the leadership structure — dual CEOs and a deep partnership bench — signals institutionalized governance beyond the founding generation. The stable fundraising trajectory through Fund IX also suggests LP comfort with the current leadership architecture.

Madison Dearborn Partners has no stated hard exclusions, but its portfolio history shows minimal exposure to pure-play biotechnology, early-stage drug development, upstream oil and gas exploration, and speculative real estate development. The firm has historically avoided hostile takeovers and prefers transactions structured around founder or family transitions, corporate divestitures, and management buyouts.

Yes, MDP operates the Madison Dearborn Partners Foundation, which directs charitable contributions primarily toward Chicago-area education, youth development, and community organizations. The foundation is legally separate from the investment funds, and contributions come from partner capital rather than LP fund assets. Specific grant amounts and recipients are not broadly publicized.