WASHINGTON: Twenty-nine India-based companies have been listed among the best 100 IT service providers in a new survey carried out with a view to assist business heads of major outsourcers identify reliable, innovative and tech savvy partners.

The toppers from each of the 10 categories that were identified included four companies each from India and the US and one company each from China and Mexico, said the survey by CyberMedia and Global Services Magazine.

They included India's Tata Consultancy Services, HCL Technologies, Genpact, WNS Global Services, America's EDS, Sitel, EPAM Systems and Computer Sciences Corporation, Mexico's Softtek and China's Neusoft, a release by Global Services Magazine said.