Private EquityRIA · CRD 156679SEC-RegisteredPrivate Fund Adviser

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Thompson Street Capital Partners

Thompson Street Capital Partners is a private equity based in St.

Thompson Street Capital Partners logo

Thompson Street Capital Partners

St. Louis-based private equity firm focused on founder-led middle-market businesses. See our portfolio companies.

General information

Firm type

Private Equity

Year founded

2000

Location

Region

North America

Country

United States

City

St. Louis

Corporate office

St. Louis, MO, United States

Principals

Jim Cooper

Managing Partner

Brian Kornmann

Managing Partner

Sector focus

Healthcare ServicesEnterprise SoftwareIndustrial TechBusiness Services

Frequently asked questions

How does Thompson Street Capital Partners source proprietary deal flow?

TSCP sources a meaningful share of its transactions through a proprietary network of regional intermediaries, operating advisors, and long-standing relationships with family- and founder-owned businesses in the Midwest and lower Midwest. The firm's St. Louis headquarters places it in close proximity to companies that rarely appear in broad auction processes run by coastal investment banks. Managing partners Jim Cooper and Brian Kornmann have cultivated this regional pipeline over two decades, giving the firm a first-look advantage on many middle-market opportunities.

What investment stages and structures does TSCP typically target?

The firm targets control equity positions in cash-flowing middle-market companies, with a heavy emphasis on management buyouts, corporate carve-outs, and recapitalizations of founder-led businesses. TSCP writes equity checks between $50 million and $250 million, targeting companies with EBITDA of $5 million to $25 million. The partnership generally avoids venture-stage, distressed, and minority-growth investments.

Which sectors does Thompson Street Capital Partners explicitly avoid?

TSCP does not invest in energy, real estate, or venture-stage companies. The firm concentrates on four verticals — healthcare services, enterprise software, industrial technology, and specialized business services — and has historically declined opportunities in sectors where it lacks operational expertise or where cash-flow visibility is weak.

How is TSCP different from a single-family office?

Thompson Street Capital Partners is a pure institutional asset manager — it raises capital from third-party limited partners including pensions, endowments, and family offices. It does not manage a single-family fortune and does not operate as a family office. The firm's principals, Jim Cooper and Brian Kornmann, built the platform as a traditional private equity partnership rather than as a vehicle for a single source of wealth.

Does TSCP participate in fund commitments or direct deals only?

TSCP is overwhelmingly a direct investor — it leads control buyouts and does not operate a fund-of-funds or LP commitment program. The firm's emphasis is on acquiring and operating platform companies directly, often executing add-on acquisitions through those platforms.

Who runs investment decisions at Thompson Street Capital Partners?

Investment decisions rest with managing partners Jim Cooper and Brian Kornmann, who have led the firm since its 2000 founding. The partnership operates with a centralized investment committee structure, though detailed governance disclosures are limited in public filings.

What is TSCP's known posture on co-investments alongside external GPs?

TSCP does not actively market a co-investment program to external limited partners, but is known to accommodate LP co-investment requests on a deal-by-deal basis — typical for a middle-market buyout firm of its size. The primary investment approach remains control buyouts led directly by the TSCP partnership.

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