Former Bebo global head of music Hal Stokes has launched a social media agency, with Phones4u and Simon Cowell’s Syco Entertainment among launch clients.

Stokes co-founded the agency, called Punktilio, with his brother Sam after leaving Bebo earlier this year and has so far also signed HarperCollins and Arsenal Football Club as clients.

For Syco Entertainment, it will be managing existing and new social media profiles for artists on the label, including The X Factor winner Joe McElderry.

While at Bebo, Stokes was responsible for securing Samsung as sponsor of Bebo UK Music, which included Samsung Bebo Nights and online video series Beat.

“Social media is becoming ever more relevant and it’s our intention to be at the heart of it,” he said. “Punktilio brings to the market a complete set of specialist skills that can provide maximum value for clients by taking their objectives, building on them and then executing the complete campaign in-house: strategy, creative, management, ad spend and production.”