Auditors PricewaterhouseCoopers LLP Abacus House Castle Park Cambridge CB3 0AN Principal Bankers Venture Finance Plc Sussex House Perrymount Road Haywards Heath West Sussex RH16 1DN HSBC Bank Plc City Office Cambridge CB2 3HZ Silicon Valley Bank 4410 Arapahoe Avenue Suite 200 Boulder, CO 80303 United States of America Solicitors SJ Berwin & Co 222 Grays Inn Road LONDON WC1X 8HB Financial Advisors Investec Henderson Crosthwaite Corporate Finance 2 Gresham Street London EC2V 7QP

Stockbrokers Investec Securities 2 Gresham Street London EC2V 7QP Registrars Capita Registrars Northern House Woodsome Park Fenay Bridge Huddersfield West Yorkshire HD8 OLA Tel U.K.: 0870 162 3131 Tel Overseas: +44 208639 3131 Fax: 01484 600 911 Email: shareholder.services@capitaregistrars.com Website: www.capitaregistrars.com Directors Timothy Arthur David Best Christopher McFadden Secretary Timothy Arthur Registered Office Whiting Way Melbourn Nr Royston Hertfordshire SG8 6EN Registered No 2100291