BENGALURU: Tata Consultancy ServicesBSE 0.54 % and US-based Cognizant have further cemented their positions at the top of the nation’s outsourcing industry in 2015, despite the worst slump in global technology spending since the 2008-09 financial meltdown and top technology consumers increasingly opting to in-source software projects. The two companies have even snatched market share away from global rivals such as IBM and Accenture in the past year.

Over the past three years, a clear separation has emerged between the leaders and the laggards of India’s $146 billion information technology industry, with the likes of TCSBSE 0.54 % and Cognizant each adding about $5 billion of incremental revenue during the period — nearly thrice as much as InfosysBSE -0.20 % and Wipro. Incremental revenue, or additional revenue generated in a given period, has become one of the most important benchmarks to track in India’s IT industry as it reflects the competitive strength of a company and its ability to win new contracts. “TCS has scale from past growth in spite of a slowdown this year. Cognizant is probably the big success story with consistent revenue growth in most quarters and has perhaps established itself as being the most localised — although Cognizant also has the best marketing of the firms and is positioning itself as the most innovative, at least from a thought leadership perspective,” said Jamie Snowdon, executive vice president.