Our Executive Team

The executive management team at 51Degrees have over 32 years combined experience in mobile telecommunications. Huw and James led many mobile initiatives for Vodafone, including the development of the 1st mobile web application for the Nokia 7110 in 1999. 

James Rosewell - Founder & CEO

James Rosewell

Prior to starting 51Degrees in 2009 James spent 10 years running major mobile programmes for Vodafone, plus founded and sold a mobile marketing business. He’s passionate about delivering great user experiences cost effectively to all mobile devices.

Ruth Rosewell - CFO

Ruth Rosewell

Ruth held a number of management positions with Marks & Spencer before becoming head of the Business Studies and Economics department of a large UK college. She holds an MBA from Warwick University.

Huw Medcraft - Non-Executive Director

Huw Medcraft

Huw led the global expansion of Mobile Broadband for Vodafone, having previously launched Vodafone’s first multimedia proposition. He has held directorship positions for Vodafone in the UK and US as well as Board roles at ATX Group and Dial Contracts Ltd.

Our Advisory Board

Jo Rabin

Jo Rabin

Mr Rabin is CTO at WiForia and and is Director of Mobile Monday London and The Mobile Academy. His substantial background as a CTO, his extensive track record building cross-device Web experiences and authoring mobile Internet standards enhances 51Degrees strategic decision making.

Thomas Chambers

Thomas Chambers

Thomas holds a number of non-executive roles and chairmanships assisting growing businesses fulfil their potential. He chairs the Finance Committee at the University of Surrey with a particular interest in the development of 5G. Previously he held a number of positions with Symbian the developers of early Smartphone Operating Systems.