Tata Consultancy Services (TCS) is a leading global provider of IT, consulting, and outsourcing services, with operations in about 45 countries. Its offerings include business process outsourcing, data center management, IT strategic consulting, cloud computing services, new product development and engineering, and systems integration. One of its specialties is developing and maintaining customized software for businesses. Its clients, in industries ranging from energy to financial services to retail to telecom, are located in North America (which generates more than half of the company's revenue), the UK, and Europe. TCS is controlled by textiles and manufacturing conglomerate Tata Group.