Annual Information Update

Ricardo PLC
22 November 2006

                                  Ricardo plc
                           Annual Information Update

As required under Prospectus Rule 5.2, Ricardo plc sets out below a summary of
the information that has been published or made available to the public during
the period 14 October 2005 to 13 October 2006. The information referred to was
up to date at the time it was published but may now be out of date. This Annual
Information Update is being published via RNS, the Regulatory News Service of
the London Stock Exchange, also is also being made available on the Investor
Relations section of our website, www.ricardo.com.

1.            Regulatory Announcements

The following UK regulatory announcements have been issued through RNS. They can
be viewed or downloaded from the Market News section of the London Stock
Exchange website (www.londonstockexchange.com), using RCDO as the code for
Ricardo plc.

Date                          Headline
19 October 2005               Director/PDMR Shareholding
25 October 2005               Additional Listing
25 October 2005               Director/PDMR Shareholding
04 November 2005              AGM Statement
24 November 2005              Director/PDMR Shareholding
30 November 2005              Holding(s) in Company
01 December 2005              Director/PDMR Shareholding
02 December 2005              Director/PDMR Shareholding
05 December 2005              Holding(s) in Company
20 December 2005              Director/PDMR Shareholding
21 December 2005              Adoption of IFRS
04 January 2006               Trading Statement
19 January 2006               Holding(s) in Company
02 February 2006              Holding(s) in Company
03 February 2006              Holding(s) in Company
16 February 2006              Holding(s) in Company
22 February 2006              Board Appointment (David Hall)
23 February 2006              Holding(s) in Company
27 February 2006              Interim Results
14 March 2006                 Holding(s) in Company
17 March 2006                 Holding(s) in Company
17 March 2006                 Holding(s) in Company
24 March 2006                 Holding(s) in Company
24 March 2006                 Holding(s) in Company
28 March 2006                 Holding(s) in Company
28 March 2006                 Holding(s) in Company
31 March 2006                 Director/PDMR Shareholding
26 April 2006                 Holding(s) in Company
11 May 2006                   Holding(s) in Company
12 May 2006                   Holding(s) in Company
03 July 2006                  Holding(s) in Company
06 July 2006                  Holding(s) in Company
07 July 2006                  Holding(s) in Company
10 July 2006                  Board Appointment (Paula Bell)
11 July 2006                  Trading Statement
11 July 2006                  Analyst and Investor Seminar
13 July 2006                  Holding(s) in Company
31 July 2006                  Holding(s) in Company
18 September 2006             Final Results
20 September 2006             Director/PDMR Shareholding
22 September 2006             Holding(s) in Company
25 September 2006             Holding(s) in Company
26 September 2006             Holding(s) in Company

2.            Documents filed at Companies House

The following documents were filed with Companies House on or around the dates
indicated. Copies can be obtained from the Companies House Direct website
www.companieshouse.gov.uk.

18 October 2005           Allotment of Shares
17 November 2005          Director Resigned (Rodney Westhead)
29 November 2005          Memorandum and Articles of Association
12 December 2005          Annual Report & Accounts
15 December 2005          Annual Return
20 December 2005          AGM Resolutions
21 December 2005          Secretary Appointed (David Oglethorpe)
21 December 2005          Secretary Resigned (Munro Wightman)
07 February 2006          Allotment of Shares
07 February 2006          Allotment of Shares
07 February 2006          Allotment of Shares
16 March 2006             Director Appointed (David Hall)
29 June 2006              Allotment of Shares
29 June 2006              Allotment of Shares
29 June 2006              Allotment of Shares
29 June 2006              Allotment of Shares
29 June 2006              Allotment of Shares
29 June 2006              Allotment of Shares
29 June 2006              Allotment of Shares
29 June 2006              Allotment of Shares
29 June 2006              Allotment of Shares
08 November 2006          Director Appointed (Paula Bell)

3.            Further information

Further information about Ricardo plc can be found at our website
www.ricardo.com.



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