The usual suspects. I’ll bet there’s more than this.
Here is an interesting list. 8 of the top 10 are body shops, given that IBM - in this context - almost certainly is an outsourcer, and I don't know what "IGate Technologies" is.
Avg Salaries run from 70K to 120K. Hardly "cheap labor". I think it wouldn't be hard to find more than a few FReepers, right here, who would be glad to work for that kind of cash.