Holding(s) in Company

Ricardo PLC
25 August 2005


                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

     RICARDO PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     HERMES ADMINISTRATION SERVICES LIMITED

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

     AS IN 2 ABOVE

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

     BRITEL FUND NOMINEES LTD.  1,133,486
     CHASE NOMINEES LTD.          408,865

5)   Number of shares/amount of stock acquired.

     NOT DISCLOSED

6)   Percentage of issued Class
     (any treasury shares held by
     company should not be taken into
     account when calculating percentage

     N/A

7)   Number of shares/amount of stock disposed
     NOT DISCLOSED

8)   Percentage of issued Class
     (any treasury shares held by
     company should not be taken into
     account when calculating percentage

      N/A

9)   Class of security

     ORDINARY SHARES

10)  Date of transaction

     22 AUGUST 2005

11)  Date company informed

     24 AUGUST 2005

12)  Total holding following this notification

     1,542,351
               
13)  Total percentage holding of issued class following this notification
     (any treasury shares held by company should not be taken into
     account when calculating percentage

      3.08

14)  Any additional information



15)  Name of contact and telephone number for queries

     M WIGHTMAN
     01273 794416

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

     Date of Notification .......25 AUGUST 2005.......





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