GROUPE OPEN : Success of Groupe OPEN's Public Tender Offer for Sylis

Regulatory News:

Groupe OPEN (Paris:OPN) (ISIN : FR 0004050300 ; listed on the NextEconomy segment – 972, IT services), IT services company, announces the success of its public tender offer (the ?Offer?) for Sylis shares closed on 3 October 2008, in accordance with the calendar published by Euronext.

The results of the Offer published on 10 October 2008 by the AMF under the reference 208C1848, indicate that Groupe OPEN's stake in Sylis's capital adds up to 9 371 239 Sylis shares, representing 96.74% of the share capital and at least 96.15% of the voting rights of the target.

In accordance with AMF regulations, the Offer will be reopened between 13 October 2008 until 24 October 2008, in the same conditions as the ones described in the prospectus in relation to the raised Offer (visa n°08-188 dated 12 September 2008).

Following the reopened Offer, Groupe OPEN will launch a squeeze-out procedure targeting Sylis shares not tendered during the Offer. This procedure will be carried out in cash at the Offer price: 4.60€ per share, in accordance with the articles 237-14 and AMF regulations.

The success of this transaction enables Groupe OPEN to pass a new milestone in its growth and become, with Sylis, a major leader in French IT services, with a combined turnover of approximately €325M (2007 basis) and more than 4,200 employees.

The prospectus in relation to the raised offer is available on the AMF's website (www.amf-france.org), on the company's website (www.groupe-open.com) and free of charge at the following addresses:

Groupe OPEN

97, boulevard Pereire

75017 Paris

ODDO Corporate Finance

12, boulevard de La Madeleine

75009 Paris

About Groupe OPEN

In 2007, Groupe OPEN (ISIN: FR 0004050300; listed on the NextEconomy segment; 972-IT services), IT services company, reported revenue of €187 million, up 30 % over 2006. The Company has a solid network in France and Spain, as well as offices in England, Canada and Ukraine. In March 2008, Groupe OPEN had 2500 employees. Groupe OPEN is included in the CAC IT and SBF 250 indices.

This press release shall not be distributed or transmitted to any country where such distribution or transmission shall constitute a violation of the applicable laws and regulations including the United States, Canada, Italy and Japan. The distribution of this press release may be subject to restrictions under applicable laws and regulations of some other countries. This press release does not constitute a public tender offer for securities or an offer to buy, sell or exchange (or a solicitation of an offer to sell, buy or exchange) securities in any country, including the United States, Canada, Italy and Japan. Other restrictions are applicable.

Groupe OPEN :
Nicolas Hazout ? Financial communication
Tel: [phone]
[e-mail]
or
Brunswick :
Marie-Laurence Bouchon
Alexandra van Weddingen
Tel: [phone]
[e-mail]