The digital agency, which won the business following a three-way pitch, has been briefed to update Evian's Wimbledon website, in addition to online strategy.
Evian first sponsored Wimbledon last year. The five-year deal, which was brokered by MEC Sponsorship, is part of Danone's aim to take the brand upmarket.
Last year Evian launched a £3m tennis-themed campaign featuring outdoor and digital activity. It also launched a limited edition bottle featuring a pink tennis ball.