Oaktree Specialty Lending Corporation is a business development company. The fund 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. The firm also seeks investment in media, advertising sectors, software, IT services, pharmaceuticals, biotechnology, real estate management and development, chemicals, machinery, and internet and direct marketing retail 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. The firm invest in companies having 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.