Holding(s) in Company

Synairgen plc
08 November 2006

Holding in Company

Synairgen plc ('Synairgen' or the 'Company')

The Company received notification on 7 November 2006 that, following the
transfer of 216,923 ordinary shares of 1p each in the Company ('Ordinary Shares
') on 7 November 2006 (further details of which are set out in the Director
Dealing announcement released earlier today), IP Group plc is beneficially
interested in 6,423,077 Ordinary Shares, which represents approximately 29.61
per cent. of the Company's issued share capital.

These Ordinary Shares are registered as follows:

IP2IPO Limited: 1,000,000 Ordinary Shares
IP2IPO Management Limited: 5,423,077 Ordinary Shares




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