13 December 2007 – Director/PDMR shareholding and change of auditor

Company: Optimisa PLC
TIDM: OPS
Headline: Director/PDMR Shareholding
Released: 14:12 13-Dec-07
Number: 8643J

Optimisa plc

(“Optimisa” or the “Company”)

Director/PDMR shareholding: and change of auditor

The Company was notified today, that following the transfer of 102,440 Optimisa ordinary shares to his self invested personal pension plan at a price of 205 pence per share on 12 December 2007, David Rankin now holds the following interests in the voting rights of the Company:

Director – Direct Number – Direct %: – Indirect: Number – Indirect %:

David Rankin – 759,496 – 8.52% – 102,440 – 1.15%

The Company is pleased to announce that it has appointed PricewaterhouseCoopers LLP as auditors to the Company.: Grant Thornton LLP have resigned as auditors and have confirmed to the Company that there are no circumstances connected with their resignation which they consider should be brought to the attention of shareholders or creditors of the Company in accordance with the Companies Act. Accordingly, PricewaterhouseCoopers LLP will conduct the audit of the Company’s accounts for the financial year ending 31 December 2007.

Enquiries:

Optimisa plc: +44 (0) 20 7960 3300
Ron Littleboy, Non-Executive Chairman
Jonathan Waters, Director

Noble & Company Limited +44 (0) 20 7763 2200
Nick Naylor
Brian Stockbridge

END