ILOG Advances on Software 500 Company Listing

Company’s Recognition as a Top Mortgage Technology Provider Follows Several Awards for Outstanding Leadership, Performance and Innovation

PARIS and SUNNYVALE, Calif. – Oct. 16, 2007 – ILOG® (NASDAQ: ILOG; Euronext: ILO, ISIN: FR0004042364) today announced it continues to be recognized for company and product innovation, leadership, and performance by industry watchers. Software Magazine has ranked ILOG 166 on the Software 500 list – the highest rank ILOG has achieved in the four years it’s been listed. In addition, Mortgage Technology magazine has recognized ILOG as one of the Top 50 Mortgage Technology Providers in July of 2007 for the fifth consecutive year. These awards follow several other awards and honors over the last few months.

Increased Ranking on Software 500
The Software 500 ranking is a revenue-based ranking of the world’s largest software and services suppliers targeting enterprise IT organizations. The list includes both private and public software companies. The publication takes into account revenue from software licenses, maintenance and support, training, software-related services and consulting. ILOG first won a position in the Software 500 ranking in 2004 when the company was ranked at the188th position.

Mortgage Technology Honors ILOG for Fifth Consecutive Year
Vendors are included in the Top 50 Providers list of Mortgage Technology on the basis of customer satisfaction, functionality, market share and a viable revenue model. ILOG has been honored by the publication for five consecutive years because of the essential nature of business rule management systems (BRMS) for loan and credit decisioning in the mortgage lending space. ILOG was first listed in 2003 in the Top 100 Technology Providers listing. In 2006 it was narrowed to only 50 vendors, and ILOG has continued to win a place on the list.

“The goal of this list is to spotlight the true leaders in the mortgage technology space,” said Mortgage Technology’s Editor Anthony Garritano. “ILOG has consistently demonstrated functional value to lenders, the most important criteria in the selection process.”

“Our software helps companies drive efficiency and competitive advantage, as well as improve profitability,” said ILOG CEO Pierre Haren. “Though it’s not just about delivering a good product. It’s about being a good partner.”

ILOG CEO Finalist in the Stevies Award
ILOG CEO Pierre Haren was a finalist in The Stevies for best executive of a computer software company. The Stevies honors executives based on their ability to drive innovation, integrity, and growth within a company.

ILOG Listed in the Top 100 Great Supply Chain Partners
ILOG was also listed in the Top 100 Great Supply Chain Partners by Global Logistics & Supply Chain Strategies this year. The list is the result of a six-month poll of readers comprising of logistics and supply-chain professionals-they nominate vendors and service providers whose technology, logistics, transportation or consulting solutions have made a significant impact on their company’s efficiency, customer service and overall supply-chain performance.

“In 2007, we received more than 1,800 nominations from small and large companies covering scores of different industries on five continents,“ said Brad Berger, Publisher of Global Logistics & Supply Chain Strategies. “More than 400 vendors of every conceivable type of supply chain activity were nominated -- from very specialized technologies, to third-party logistics providers to highly specialized transportation services. The 100 companies that received the most qualified nominations were selected to this year’s list. Congratulations go to ILOG for being selected a 2007 Great Supply Chain Partner.”

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 system (BRMS), supply chain planning and scheduling applications, and 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 850 people worldwide. For more information, please visit www.ilog.com.

ILOG is a registered trademark of ILOG S.A. and ILOG, Inc. All other trademarks are the properties of their respective owners.