Saatchi & Saatchi Vision, which was ranked equal tenth in Campaign's Top 300 full-service new-media agencies, was one of the assortment of new-media agencies at the new Publicis-Bcom3 group including Spring, Leonardo and Blue Marble.
A rationalisation of its new- media brands to create additional buying clout has been expected since the Publicis merger was announced.
Phil Nunn, a partner at interactive@optimedia, said: "We've spent some time talking with Saatchi & Saatchi Vision about how best to structure ourselves in order to offer the best resource. Saatchi & Saatchi Vision shares our optimism for the future of interactive media."
Saatchi & Saatchi Vision was dropped by Telewest Communications as its lead new-media agency last year following a review that saw Carlson emerge triumphant. It also lost one of its founder partners - Alan McCulloch - in February 2000 to its rival agency Zentropy Partners.