 As of 2012, the city has about 34,260 identified companies in its 15 zones.Of these, 5,196 companies has a paid-up capital of over 5 million, about 16,459 companies are in the paid up capital range of 100,000 to 200,000, and 2,304 companies have a paid-up capital of less than 100,000.Since the late 1990s, software development and business process outsourcing and more recently electronics manufacturing have emerged as major drivers of the city's economic growth.