Holding(s) in Company

Synchronica PLC
04 April 2007


Synchronica plc

4 April 2007

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of company

Synchronica plc

2. Name of shareholder having a major interest

Barclays plc

3. Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non-beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18

Above

4. Name of the registered holder(s) and, if more than one holder, the number of
shares held by each of them

Barclays plc

5. Number of shares / amount of stock acquired

2,474,954

6. Percentage of issued class

Not disclosed

7. Number of shares / amount of stock disposed

Nil

8. Percentage of issued class

Nil

9. Class of security

Ordinary shares of 1 pence each

10. Date of transaction

30th March 2007

11. Date company informed

2nd April 2007

12. Total holding following this notification

2,613,812

13. Total percentage holding of issued class following this notification

7.18%

14. Any additional information

None

15. Name of contact and telephone number for queries

Michael Woolley - 01892 552 760

16. Name and signature of authorised company official responsible for making
this notification

Michael Woolley, Company Secretary

Date of notification

04.04.2007




                      This information is provided by RNS
            The company news service from the London Stock Exchange
         RGDSRDGGGRS