Carlyle Group is an investment firm that specializes in direct and fund of fund investments in various sectors such as healthcare, aerospace, consumer, real estate, and more. They invest in businesses with over-leveraged balance sheets, holding their investments for three to six years, with an enterprise value of $31.57 million to $1000 million, and sales value of $10 million to $500 million. They are established in Washington, DC, and have additional offices in 21 countries.