Indian Space Research Organisation, Liebherr Aerospace have there units in Bangalore. Bangalore has also emerged as an electronics & hardware manufacturing hub of India. It houses Dell, Nokia, Philips, Wistron manufacturing and R&D units. Public sector undertakings (PSUs) such as Bharat Electronics Limited (BEL), Hindustan Aeronautics Limited (HAL), National Aerospace Laboratories (NAL), Bharat Earth Movers Limited (BEML), Central Manufacturing Technology Institute (CMTI), HMT (formerly Hindustan Machine Tools) and Rail Wheel Factory (RWF). SKF also has a plant in the city. Information Technology Bangalore is firstly known for its IT industry. It houses many IT Companies. Here are many IT companies like Infosys, Mphasis, Wipro, Tata Consultancy Services, Nasdaq, Facebook, Google and Microsoft etc. India's two largest IT companies - Infosys and Wipro to name a few have their headquarters here in Bangalore. Electronic City is a place in Bangalore, which houses IT companies in Bangalore along with Infosys headquarters. Whitefield is another major suburb housing many IT companies. It is called as "The Silicon Valley of India' and "IT Capital of India" Aerospace and aviation Bangalore is also called the aviation monopoly capital of India. It accounts for more than 65% of India's aerospace business. World Aerospace giants such as Boeing, Airbus, Goodrich, Dynamatics, Honeywell, GE Aviation, UTL, others have their Research & Development and Engineering centres in Bangalore. Before Bangalore was called the Silicon Valley of India, the city made its name as headquarters to some of the largest public sector heavy industries of India. The Hindustan Aeronautics Limited (HAL) headquarters is in Bangalore, and is dedicated to research and development activities for indigenous fighter aircraft for the Indian Air Force. With over 9,500 employees, it is one of the largest public sector employers in Bangalore. Today, HAL manufactures, under license, various fighter aircraft for the Indian Air Force (IAF) including Sukhoi 30 Flankers and Jaguars. HAL also develops indigenous products for the IAF such as HAL Tejas, Aeronautical Development Agency, HAL Dhruv and HAL HF-24 Marut. The National Aerospace Laboratories (NAL) is also headquartered in Bangalore and is dedicated to the development of civil aviation technologies. Incorporated in 1960, NAL often works in conjunction with the HAL and has a staff strength of over 1,300 employees. NAL also investigates aircraft malfeasance. A special economic zone for the aerospace industry is being set up near the Kempegowda International Airport. Bangalore was also home to large domestic airlines - now