ILOG Chairman and Chief Executive Officer to Ring the NASDAQ Stock Market Opening Bell

Company to Celebrate 10 Years On NASDAQ


ADVISORY, April 27, 2007 (PRIME NEWSWIRE) --



 What:
 Pierre Haren, Chairman and CEO of ILOG (ILOG), will preside over the
 opening bell to celebrate the Company's 10th anniversary of listing
 on NASDAQ. ILOG was listed on NASDAQ in 1997.

 Celebrating its 20th year business anniversary, ILOG was founded on
 the idea that object-oriented programming and artificial intelligence
 could be combined and commercialized as software components to help
 organizations create the next generation of smarter software
 applications.

 Where:
 NASDAQ MarketSite - 4 Times Square - 43rd & Broadway - Broadcast Studio

 When:
 Monday, April 30, 2007, at 9:30 a.m. ET

 Contacts:
 Monika Raj
 ILOG, Inc. - PR Manager-US
 650-567-8128; mraj@ilog.com

 NASDAQ MarketSite:
 Jolene Libretto; 646.441.5220; mobile - 347.219.9539
 Jolene.Libretto@NASDAQ.com

Feed Information:

The opening bell is available from 9:20 a.m. to 9:35 a.m. on uplink IA6 C band / transponder 24, downlink frequency 4180 horizontal. The feed can also be found on Waterfront fiber 1623. If you have any questions, please contact Jolene Libretto at (646) 441-5220.

Radio Feed:

An audio transmission of the opening bell is also available from 9:20 a.m. to 9:35 a.m. on uplink IA6 C band / transponder 24, downlink frequency 4180 horizontal. The feed can be found on Waterfront fiber 1623 as well.

Webcast:

A live webcast of the NASDAQ Opening Bell will be available at: http://www.nasdaq.com/reference/marketsite_about.stm.

Photos:

To obtain a hi-resolution photograph of the Market Open, please go to http://www.nasdaq.com/reference/marketsite_events.stm and click on the market open of your choice.

About ILOG:

ILOG delivers software and services that empower customers to make better decisions faster and manage change and complexity. Over 2,500 corporations and more than 465 leading software vendors rely on ILOG's market-leading business rule management systems (BRMS), supply chain planning and scheduling applications as well as its optimization and visualization software components, to achieve dramatic returns on investment, create market-defining products and services, and sharpen their competitive edge. ILOG was founded in 1987 and employs more than 800 people worldwide. For more information, please visit http://www.ilog.com.