Nuttall worked as head of internal comms at Marks & Spencer until earlier this year. He joined the high street retailer three years ago from his role as corporate comms consultant at pharma colossus GlaxoSmithKline (PRWeek, 1 April 2005).
Nuttall has also previously worked at Cable & Wireless, the BBC and Citigroup.
'Robert's appointment will bring a wealth of experience to our London office,' said Clownfish CEO Diana Verde Nieto. 'Our expanding team in the UK will be the benchmark for our recently opened New York office and our plans to open an office in Shanghai.'