Virgin Media, which does not have a digital incumbent in place, called the pitch in November.
The company will also work with Saint, Rainey Kelly Campbell Roalfe\Y&R’s digital arm, on integrated campaigns, and the in-house design and branding agency Start. All three agencies will work on separate digital projects.
Spike, part of the Cossette Communication Group, will also provide consultation across Virgin Media’s marketing and communications.
Ashley Stockwell, the executive director of brand and marketing at Virgin Media, said: "Our agencies have a very strong understanding of the Virgin brand and will help us bring our products and services to life online, from ultrafast broadband to great TV content and innovative mobile services."
Richard Neville, the managing partner of Spike, added: "We’re looking forward to working with Virgin Media and implementing a clear digital strategy. By building a distinctive presence and driving direct response, we can help Virgin Media speak to people in a very relevant and brand-led way."