Quad-C

Quad-C runs a classic middle-market buyout strategy, acquiring majority stakes in companies with enterprise values from $100 million to $500 million. Equity checks range between $50 million and $150 million per transaction. The firm invests in established businesses with demonstrated competitive advantages and growth potential rather than early-stage or venture capital rounds.

The partnership's nine partners have served together for an average of 23 years, with managing partners working side by side since 1994. This concentration means a compact, consensus-driven investment committee shepherds new deals. The firm accepts new opportunities through a dedicated deal-sourcing email (NewDeals@qc-inc.com), which suggests an internal evaluation team rather than publishing names of individual deal leads.

Quad-C is deploying its tenth fund, which closed with roughly $1.7 billion in capital commitments, per the firm's own website. This marks the latest vehicle in a sequence that has supported over 90 platform investments since 1989, with cumulative lifetime deployment surpassing $4.9 billion.

Quad-C operates exclusively within two verticals: services and industrials. Within those, the portfolio shows exposure to healthcare services (Compassion-First Pet Hospitals), specialty distribution (Thibaut), insurance services (Dane Street), engineering (4CE/ELEMENT Engineering), and security services (Marksman Titan). The firm does not publicly invest in consumer brands, financial services, or technology outside of tech-enabled service models. No explicit exclusion list is published.

Quad-C focuses on majority-control positions and builds platforms through add-on acquisitions — for example, Marksman Titan's tuck-in of Priebe Security Services — but the firm's public materials do not detail co-investment partnerships with external GPs. The operating model suggests deal-by-deal capital assembly rather than a standing co-investor club.