Sixth Street Specialty Lending, Inc. is a business development company. The fund provides senior secured loans (first-lien, second-lien, and unitranche), mezzanine debt, non-control structured equity, and common equity with a focus on co-investments for organic growth, acquisitions, market or product expansion, restructuring initiatives, recapitalizations, and refinancing. The fund invests in business services, software & technology, healthcare, energy, consumer & retail, manufacturing, industrials, royalty related businesses, education, and specialty finance. It seeks to finance middle market companies principally located in the United States. The fund invests in companies with enterprise value between $50 million and $1 billion or more and EBITDA between $10 million and $250 million. The transaction size is between $15 million and $350 million. The fund invests across the spectrum of the capital structure and can arrange syndicated transactions of up to $500 million and hold sizeable positions within its credits.