The Edelman umbrella would give the firm a Europe-wide reach before it established its own European offices, Ryan explained.
Based at the central London HQ of fellow Edelman agency Jackie Cooper PR, Zeno Europe's team of six will grow to nine by the end of the year, with Ryan planning to take on a further 11 staff by the middle of 2006.
Although it will leverage a US client base that includes the Cartoon Network, Whirlpool, Oracle and Cablevision, Ryan said she wanted to grow an independent client base 'organically'. She added: 'We are already doing public affairs work with Pfizer, marcoms work for pharma firm Schering, and have a contract with Alien Technology.'
Ryan reports to New York-based Zeno CEO Jerry Epstein, who said she gave the agency a 'proven track record in business-building'.
Ryan resigned from GCI this March after ten years (PRWeek, 29 April), saying that she was taking the summer off to be with her family and would return to a full-time role before the end of the year.