Tesco's online business Tesco.com will use Epsilon's proprietary email communications and campaign management platform. It will also consult Epsilon on cross-selling, acquisition and retention strategy.
Kendra Banks, marketing director at Tesco.com, said: "Tesco.com has partnered with Epsilon International to continue our tradition of bringing constant improvements to our email campaigns."
Ted Wham, senior vice-president and general manager of European operations for Epsilon, said: "As Tesco.com develops even more advanced email campaigns, their customers will benefit from receiving more relevant communications at the right time and in the right place."
Tesco has in the past used e-Dialog as its email marketing provider.