Demand for the visas far exceeds the 85,000 cap, meaning that the government has to ration them to firms by lottery. Indian outsourcing firms like Tata Consultancy Services (TCS), which provides low-cost back-office services, are now the biggest employers of H-1B workers [economist.com]. Analysing data compiled by Théo Négri of jobsintech.io, The Economist found that between 2012 and 2015 the three biggest Indian outsourcing firms—TCS, Wipro and Infosys—submitted over 150,000 visa applications for positions that paid a median salary of $69,500. In contrast, America’s five biggest tech firms—Apple, Amazon, Facebook, Google and Microsoft—submitted just 31,000 applications, and proposed to pay their workers a median salary of $117,000.
The Economist reassures us that, "Given that the unemployment rate for college graduates sits at 2.5%, it is fair to say that most native workers displaced by H-1Bs land on their feet."