Rakuten Marketing, the advertising business of the Japanese eCommerce giant, has announced a new wave of brands joining its client list, including Stella McCartney, Billabong, Ugg and British Gas.

The digital marketing firm has seen double digit growth year-on-year in Q2 2015 in each of its business units, and has seen mobile orders on its affiliate channel become an increasingly central part of the business, accounting for 36 per cent of orders, up 19 per cent year-on-year.

“By the end of 2015, mobile is predicted to account for 30 per cent of all online purchases in the UK, and the continual rise in mobile orders we are seeing across our affiliate network is reflective of this trend,” said Mark Haviland, managing director of Rakuten Marketing Europe. “Advertisers must invest in mobile, not only because more people are shopping on these devices, but because mobile plays a key role in bridging the gaps within an omnichannel purchase journey.”

Rakutens display ad business has also grown considerably, up 91 per cent year-on-year, and with new UK clients including Papa Johns, Billabong and Kickers, which is already making use of the firms affiliate network.

“Were seeing more and more happy customers like Kickers begin to optimise our omni channel service offering after a long and successful programme through the Rakuten Affiliate Network,” said Tony Zito, CEO of Rakuten Marketing. “By working with multiple channels under the same company, brands are able to streamline their efforts and increase the value of their marketing spend.”