The Deloitte Digital arm is launching 11 digital studios in the US, UK, India and Australia, with plans to expand rapidly in the next year.
The new arm will employ more than 800 staff internationally, with 100 based in the UK.
Deloitte says the new studios will "provide clients with a full suite of digital services covering strategy, user experience, content, creative, engineering and implementation across mobile, web, social and digital channels."
The move will help Deloitte consolidate its existing digital operations, which already serve major corporate clients including John Lewis and Transport for London.
Sam Roddick, head of EMEA at Deloitte Digital, said, “Winners and losers will be determined in the digital revolution. Every one of our clients is impacted regardless of industry and region.
"We have developed Deloitte Digital in response to increasing demand from our clients across the world for advanced digital advice, particularly in the mobile sector. They value our industry knowledge and insight and this expertise, combined with creative knowledge, will help them connect with their customers, employees and partners in the new digital world."