The Carlyle Group, with some $150 billion under management, is one of the world's largest private investment firms. Activities include management-led buyouts, minority equity investments, real estate, venture capital, and leveraged finance opportunities in the energy and power, consumer and retail, and technology and business services industries. Other target sectors include financial services, health care, infrastructure, aerospace and defense, automotive, transportation, telecommunications, and media. Since its founding in 1987, Carlyle has made more than 950 investments. It has more than 30 offices around the world. Carlyle filed to go public in 2011.