Oaktree Specialty Lending Corporation is a business development company specializing in investments in middle market, bridge financing, first and second lien debt financing, unsecured and mezzanine loan, mezzanine debt, senior and junior secured debt, expansions, sponsor-led acquisitions, preferred equity and management buyouts in small and mid-sized companies. It seeks to invest in education services, business services, retail and consumer, healthcare, manufacturing, food and restaurants, construction and engineering, and media and advertising sectors. It invests between $5 million to $75 million principally in the form of one-stop, first lien, and second lien debt investments, which may include an equity co-investment component in companies with enterprise value between $20 million and $150 million and EBITDA between $3 million and $50 million. The fund has a hold size of up to $75 million and may underwrite transactions up to $100 million. It primarily invests in North America. The fund seeks to be a lead investor in its portfolio companies.