The account is currently split between Zed Media for Otto UK's Kaleidoscope brand and Mediavest Manchester for Grattan.
Alex Hardy, the Kaleidoscope brand director said: "Otto UK is committed to developing its multi-brand strategy, and we wanted an agency that could understand each of our brands and could deliver tailor-made solutions and drive an innovative approach to media planning."
Jason Spencer, the managing director of PHD North, said: "We are really proud to be appointed by Otto. This is a really prestigious account to win and a great fit with what PHD North stands for.
"Otto have always looked to push the boundaries and make waves in this sector. We believe that PHD North are perfectly placed to pioneer new and innovative solutions in a market that needs fresh thinking."
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