Bengaluru: IT firm Tech Mahindra on Sunday that said it has entered into the Top-20 global tech services brands list (by brand value) in 2017,as per an independent assessment by a valuation and strategy consultancy, Brand Finance. It also said the company has potential to be in the top-5 technology services brands by 2020. Tech Mahindra has been ranked at No 14, with an impressive growth of 21 per cent over the previous fiscal, a joint release by Tech Mahindra and Brand Finance said.