The Team

We are a small and growing team at Cellexus.

Between us we have many years of business and technical expertise, particularly within the medical devices sector.

Bob Cumming is a founding shareholder in Cellexus and joined the company as General Manager in 2012.

Bob studied microbiology at Glasgow University before joining Avon Medicals as production manager, manufacturing blood transfusion sets and renal diaysis equipment. This was followed as General Manager of Cimid manufacturing heart lung by-pass equipment and he was then recruited to run Intercobra, which he subsequently bought out of administration and in turn was bought out. 

Bob has since formed a number of companies including Ecosse Medical (Thermodilution catheters) sold to 3M Ltd; Ashfield Medical (disposable surgical drapes) sold to Medex Corporation; and DNA Research, a life science company sold to Invitrogen for £37m. 


A Chartered Management Accountant, Malcolm Bateman spent about 30 years working with UK, US and German automotive and pharmaceutical multinationals. Malcolm has held a variety of financial posts and was latterly Managing Director of a major automotive component manufacturer. 

Formerly Director of Finance for The Roslin Institute, Malcolm was also a Director of Roslin Developments, which developed the new Institute at the University of Edinburgh's Easter Bush Campus.

In recent years Malcolm has worked with and maintains directorships in a number of innovative emerging companies including spin outs from Roslin Foundation (where he is CEO)  - Roslin Cells, Well Cow, Roslin Cellab and Roslin Eggs. Malcolm was also CEO of Roslin BioCentre, and remains active in role as Chair of the science park and the Midlothian Science Zone. 


Leo Sibanda started work with Cellexus in January 2015.

Leo is from Zimbabwe and came to the UK to study Electrical & Electronic Engineering at University of Greenwich. He followed this with an MSc at Leeds in 2012 and completed his education with an MBA at the University of Aberdeen. 


David Roe is our sales representative based in Düsseldorf. He is founder of add2biz, a management consultancy specialising in international business development. 

David is British and has lived and worked in Germany since 1993 when he established and ran the German office of Scottish Trade (later Development) International. Until 2012, he was Head, Investment Promotion for Invest Hong Kong in Germany.

David is an expert in both international trade and inward investment, to and from German-speaking markets. He instigates and opens dialogue at senior level, recruits and advises companies wishing to found subsidiaries abroad and/or engage in partnerships with foreign firms and research organisations. 

e: david.roe@cellexus.com | t: +49 211 989 4095  |  m: +49 178 680 7541


Wally French is a major shareholder and founder shareholder.

He is Managing Director of a successful commercial property company based in Peterborough.