The company recently repositioned Teadirect as a premium brand with a new pack design and slogan "extraordinary, ordinary tea". The Teadirect blend has also undergone a change as tea from a new producer in Kenya is added to tea from existing partners in Sri Lanka, Tanzania and Uganda.
Walker Media will also be responsible for media planning and buying across all Cafedirect brands.
Sylvia Barr, Cafedirect's head of marketing, said: "We found Walker Media demonstrated a sound grasp of the categories we compete in and understood our innovative way of working. We are confident that Walker Media will make an important contribution to our marketing efforts, particularly as we are increasing our focus on Teadirect."
Cafedirect split with Starcom Motive earlier this year and Walker Media has already started working on the account.
Phil Georgiadis, partner at Walker Media, said: "We love working with challenger brands and entrepreneurial organisations, so Cafedirect is a perfect fit for Walker Media. It is well placed to benefit from the 21st-century media landscape and we are confident that we can help drive the business to a new level."
The brand's creative account is held by Host Universal.
Established in 1991, Cafedirect is part of the Fairtrade movement and buys all its products direct from the growers and aims to set new standards for commercial trading in developing countries.
It recently developed a new pricing model that promises tea farmers a minimum price of £1.23 a kilo for tea, the first time tea farmers have received a guarantee on price.
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