HCL is building five development centers in the U.S. and E.U. in Seattle; Cary, N.C.; Helsinki, Finland; Krakow, Poland; and in Dublin, Ireland.
Cognizant is one of the fastest-growing outsourcing firms.
Cognizant finished its third quarter, which ended in September 2011, with 130,400 workers, an increase of approximately 34,800 from the same quarter in 2010, according to SEC filings. The company, which is due to report its fourth quarter earnings on Feb. 8, is expecting last year's revenue growth to be at least 33%.
The second largest firm is India-based Infosys, which employed 145,000 workers at the end of 2011, an increase of more than 17,000 from the year-ago quarter. This company is facing litigation over its use of the B-1 visa, which is a visitor's visa.
Another Indian giant, Wipro, was at nearly 137,000 employees, up more than 17,000 from the year-ago quarter.
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