OMX Nordic Exchange Copenhagen Announcement no. 20/2010 Maconomy A/S calls an extraordinary general meeting Copenhagen, 13 July 2010. Deltek Inc. has requested Maconomy A/S to call an extraordinary general meeting in Maconomy A/S to consider the following proposals: - Elect three new members to the Board of Directors. - Authorisation from the shareholders to the Board of Directors of Maconomy A/S to apply to NASDAQ OMX Copenhagen for a delisting of the shares. Deltek Inc. owns more than 90% of the share capital in Maconomy A/S, cf. the §29 announcement of 6 July 2010. The request has been considered at a Board meeting of Maconomy, and the date for the extraordinary general meeting has been set to Wednesday 4 August 2010. The current shareholder elected members to the Board of Directors are expected to resign at the extraordinary general meeting. Supplement: A request by Deltek Inc. is enclosed with this announcement. Copenhagen, 13 July 2010. On behalf of the Board of Directors: Thomas D. Hartwig (Chairman) John Andersen (Deputy Chairman) Henrik Schimming Jens Christian Lorenzen Carsten Elvers Kell Møller For additional information on this announcement, please contact: Hugo Dorph, CEO, tel. +45 35 27 79 00, e-mail: hdo@maconomy.com Jan Muurmand, FD, tel. +45 35 27 24 55, e-mail: jm@maconomy.com This announcement has been prepared in Danish and English. The Danish version is to be considered the original version for official purposes and in case of any discrepancies between the two versions the Danish version shall prevail.