Sixth Street Specialty Lending Business Summary

Sixth Street Specialty Lending, Inc. (TSLX) is a business development company (BDC) that generates revenue primarily through interest income and activity-based fees derived from its $3.35 billion investment portfolio. The company specializes in direct originations of senior secured loans, which comprise approximately 89% of its holdings, alongside selective investments in mezzanine debt, corporate bonds, and equity securities. TSLX operates through a single Investment Activity segment, targeting U.S.-domiciled middle-market companies with complex business models that require flexible capital solutions. As of early 2026, its portfolio is diversified across 19 industries, with its largest exposures in Internet Services (18.3%) and Business Services (13%). TSLX competes directly with major BDCs such as Ares Capital (ARCC), Golub Capital BDC (GBDC), Oaktree Specialty Lending (OCSL), and Capital Southwest (CSWC), distinguishing itself through a disciplined "investor-first" credit culture and a track record of delivering double-digit annual economic returns. The company is led by Chief Executive Officer Robert "Bo" Stanley, who assumed the sole CEO role on December 31, 2025, after serving as President and Co-CEO. Stanley, a Partner at Sixth Street with a background at Wells Fargo Capital Finance, is supported by Chief Financial Officer Ian Timothy Simmonds and Ross Bruck, Managing Director and Head of Investment Strategy. Joshua Easterly, a co-founder of the broader Sixth Street platform and former CEO, remains a pivotal figure as Chairman of the Board. The founding team includes industry veterans such as Alan Waxman and David Stiepleman, who established the firm in 2010 (originally as TPG Specialty Lending) to leverage the scale of the Sixth Street global investment platform, which manages over $115 billion in assets. The Board of Directors features a mix of internal leadership and independent members, including Judy Slotkin and Richard Higginbotham, ensuring rigorous oversight of the firm’s specialized lending strategies.