PARIS and SUNNYVALE, California, April 30 /PRNewswire/ --

ILOG(R) (Nasdaq: ILOG; Euronext: ILO, ISIN: FR0004042364) today announced its results for its fiscal third quarter ended March 31, 2008 with revenues of US$46.1 million compared with revenues of US$40.0 million in the same quarter last year. U.S. GAAP earnings per share (EPS) for the third quarter were US$0.01 (diluted) compared with a diluted EPS of US$0.04 for the third quarter last year.

"The strength of our business model, which relies on geographic and channel diversity, helped license revenue growth in Europe, but was not enough to offset the impact of the U.S. economic slowdown on the sales cycles in this region," said ILOG Chairman and CEO, Pierre Haren.

ILOG had anticipated a weak level of Business Rule Management System (BRMS) opportunities in the banking industry, especially in the U.S. However, a number of large deals in the healthcare, transportation and insurance industries also failed to materialize in a timely manner in the third quarter. "The difficulties in the banking industry now generate more general concerns over the economy, and our customers are taking more time to launch their new projects powered by ILOG technology," added Haren. "Increased delays in the signature of these deals have also impacted ILOG's professional services margin, which is severely affected by underutilization of our resources in the U.S."

Despite the strength of the euro, preemptive cost-saving measures and strict hiring restraints enabled ILOG to achieve break-even at the operating income level in the third quarter. The Company's cash position exceeded the US$70 million mark at the end of the quarter.

Positive indicators in ILOG's third quarter included overall revenue growth at 15% year over year, and license growth at 18%. Geographically, Europe was noteworthy, growing at 23%, with 10% growth at constant currency rate. The Americas grew below expectations at 7% due to the economic slowdown, which deferred some IT spending across industries.

License and maintenance revenues for the Company's optimization tools and engines grew 23%, reflecting royalties received from several OEM partners and good demand for ILOG CPLEX(R). Key customers included a leading U.S. cable broadcasting company, which is using ILOG CPLEX for advertising scheduling, and the distribution arm of the world's leading diamond provider.

The BRMS product line grew 10% driven mostly by demand in Europe and highlighted by large deals with IBM for a high-profile UK public sector program and Groupama, a leading French insurer, for several CRM applications. In the quarter, ILOG was named a resounding leader in the April 2008 report "The Forrester Wave(TM): Business Rules Platforms, Q2 2008" from Forrester Research, a leading IT research firm. ILOG also shipped its ILOG Rules for .NET 3.0 product, with unparalleled integration with Microsoft(R) platforms and products including Microsoft Office(R) 2007, Microsoft Visual Studio(R) and Microsoft .NET(R) 3.0, and was named the sole leader in Business Rule Platforms vendor for .NET developers by Forrester.

Highlights for the Company's vertical applications business was the closing of a deal with a major U.S. pharmaceutical company for ILOG Plant PowerOps(R) production planning and scheduling solution. The company also launched the Carbon Footprint Extension for LogicNet Plus XE, which is expected to capitalize on the growing demand for products that allow users to evaluate the impact of various supply chain network configurations and transportation strategies on their carbon footprint, allowing companies to quickly and easily implement green supply chain initiatives.

LogicTools co-founder and MIT professor David Simchi-Levi was named Chief Science Officer of ILOG. As Chief Science Officer, Simchi-Levi will be charged with monitoring scientific and emerging technology trends to ensure the maintenance of company leadership in the competitive landscape. He will also oversee the links between ILOG and the academic world, conduct periodic technical evaluations of ILOG technology and participate in product strategy decisions.

Business Outlook

Due to the shortfall in license revenues in the third quarter as well as expected continued pressure on licenses for the remainder of the year, ILOG is now unlikely to meet its full-year target of 20% revenue growth, but expects to achieve a double-digit increase in full-year revenues. Furthermore, with lower margin from professional services and the continued weakness of the dollar against the euro compounding the direct impact of the license revenue shortfall on profitability, ILOG now expects to break even at the operating income level, rather than achieve the US$6 million operating income previously expected.

Conference Call

ILOG management will be hosting a conference call today at 10 a.m. Eastern Time or 4 p.m. Central European Time to discuss the contents of this release. To listen, please visit http://www.ilog.com/corporate/investor and utilize the WebCast link. To participate, contact Gavin Anderson at +44-20-7554-1400. A replay of the call will be available later.

About ILOG

ILOG delivers software and services that empower customers to make better decisions faster and manage change and complexity. Over 3,000 corporations and more than 465 leading software vendors rely on ILOG's market-leading business rule management systems, supply chain 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 850 people worldwide. For more information, please visit http://www.ilog.com.

Forward-looking Information

All of the statements included in this release that are not statements of historical fact, constitute "forward-looking statements" within the meaning of the United States securities laws, and involve risks and uncertainties. For example, the statements in the "Business Outlook" section of this release, and in quotations from our management, are forward-looking statements. Among the risk factors that could cause our actual results to differ materially from what we expect are: fluctuations in demand for our products and services; difficulties in matching our consultant resources with unpredictable demand for our consulting services; uncertain success of our investments in vertical products; intense competition and consolidation in our industry; the length and unpredictability of our sales cycle; the concentration of transactions in the final weeks of the quarter; the increasing number of higher risk fixed price consulting engagements; our dependence on certain major independent software vendors, changing market and technological requirements; our ability to provide professional services activities that satisfy customer expectations; the impact of currency fluctuations on our profitability; changes in tax laws or an adverse tax audit, errors in our software products; the loss of key personnel, logistical difficulties; cultural differences, product localization costs, import and tariff restrictions; adverse foreign tax consequences and fluctuations in currencies resulting from our global operations; the impact of intellectual property infringement disputes; our heavy dependence on our proprietary technology; risks related to acquisitions and minority investments; the limitations imposed by French law or our by-laws that may prevent or delay an acquisition by ILOG using its shares; changes in accounting principles that could affect our operating profits and reported results; and other matters not yet known to us or not currently considered material by us. All written and oral forward-looking statements attributable to us, are qualified in their entirety by these cautionary statements and others contained in our filings with the U.S. Securities and Exchange Commission. Readers are cautioned not to place undue reliance on these forward-looking statements. Unless required by law, the Company undertakes no obligation to revise these forward-looking statements to reflect new information or events, circumstances, changes in expectations or otherwise that arise after the date hereof.

ILOG S.A. Consolidated Income Statements (unaudited) In U.S. GAAP in thousands of U.S. dollars and thousands of shares, except per share data Three Months Ended March 31 March 31 March 31 March 31 2008 2007 2008 2007 (in euros) (in euros) Revenues: License fees $21,193 $17,922 13,938 13,605 Maintenance 12,986 10,916 8,650 8,326 Professional services 11,884 11,200 7,840 8,519 Total revenues 46,063 40,038 30,428 30,450 Cost of revenues: License fees 336 427 223 326 Maintenance 1,440 1,283 960 978 Professional services 10,597 8,793 7,028 6,691 Total cost of revenues 12,373 10,503 8,211 7,995 Gross profit 33,690 29,535 22,217 22,455 Operating expenses: Marketing and selling 18,692 16,240 12,407 12,350 Research and development 9,236 9,269 6,205 6,933 General and administrative 5,713 3,207 3,794 2,338 Total operating expenses 33,641 28,716 22,406 21,621 Income (loss) from operations 49 819 (189) 834 Net interest income and other 517 590 326 434 Income (loss) before taxation 566 1,409 137 1,268 Income taxes expense 166 300 103 224 Net income of fully consolidated subsidiaries 400 1,109 34 1,044 Equity (loss) in earnings of affiliates (235) (316) (152) (239) Net income $165 $793 (118) 805 Earnings per share - Basic $0.01 $0.04 (0.01) 0.04 - Diluted $0.01 $0.04 (0.01) 0.04 Share and share equivalents used in per share calculations - Basic 18,475 18,173 18,475 18,173 - Diluted 18,054 18,774 18,055 18,840 Nine Months Ended March 31 March 31 March 31 March 31 2008 2007 2008 2007 (in euros) (in euros) Revenues: License fees $59,672 $52,985 40,963 40,760 Maintenance 39,166 32,130 27,197 24,868 Professional services 36,012 30,045 24,923 23,185 Total revenues 134,850 115,160 93,083 88,813 Cost of revenues: License fees 955 908 663 698 Maintenance 3,995 3,896 2,758 3,006 Professional services 30,872 23,285 21,378 17,971 Total cost of revenues 35,822 28,089 24,799 21,675 Gross profit 99,028 87,071 68,284 67,138 Operating expenses: Marketing and selling 54,220 46,140 37,327 35,550 Research and development 27,864 24,439 19,279 18,795 General and administrative 17,445 13,555 12,053 10,272 Total operating expenses 99,529 84,134 68,659 64,617 Income (loss) from operations (501) 2,937 (375) 2,521 Net interest income and other 1,614 1,726 1,066 1,286 Income (loss) before taxation 1,113 4,663 691 3,807 Income taxes expense 546 1,335 369 1,017 Net income of fully consolidated subsidiaries 567 3,328 322 2,790 Equity (loss) in earnings of affiliates (124) (396) (74) (299) Net income $443 $2,932 248 2,491 Earnings per share - Basic $0.02 $0.16 0.01 0.14 - Diluted $0.02 $0.16 0.01 0.13 Share and share equivalents used in per share calculations - Basic 18,524 18,117 18,524 18,117 - Diluted 18,309 18,689 18,336 18,776

ILOG S.A. Condensed Consolidated Balance Sheets (unaudited) In thousands of U.S. dollars March 31 June 30 March 31 June 30 2008 2007 2008 2007 (in euros) (in euros) Assets Current assets: Cash and cash equivalents $70,225 $46,040 44,703 40,781 Short-term investments 18 8,616 - - Accounts receivable 41,817 42,161 26,446 31,219 Other receivables and prepaid expenses 15,407 12,736 8,961 8,656 Total current assets 127,467 109,553 80,110 80,656 Long-term assets: Tangible and intangible assets - net 15,937 16,480 10,078 12,204 Other long-term assets 24,175 19,095 17,273 16,346 Total long-term assets 40,112 35,575 27,351 28,550 Total assets $167,579 $145,128 107,461 109,206 Liabilities and Shareholders' Equity Current liabilities: Accounts payable and other current liabilities $31,144 $28,465 19,697 21,266 Current portion of capital lease obligations 50 206 32 153 Deferred revenue 38,399 32,884 24,290 24,353 Total current liabilities 69,593 61,555 44,019 45,772 Long-term liabilities: Long-term portion of capital lease obligations - 17 - 12 Other long-term liabilities 4,401 2,536 2,766 1,690 Total long-term liabilities 4,401 2,553 2,766 1,702 Total liabilities 73,994 64,108 46,785 47,474 Shareholders' equity: Paid-in capital 102,578 98,962 52,816 50,635 Treasury stock (10,727) (8,511) (8,455) (6,912) Accumulated deficit and other 1,734 (9,431) 16,315 18,009 Total Shareholders' equity 93,585 81,020 60,676 61,732 Total liabilities and shareholders' equity $167,579 $145,128 107,461 109,206

ILOG S.A. Condensed Consolidated Statements of Cash Flow (unaudited) In thousands of U.S. dollars Nine Months Ended March 31 March 31 March 31 March 31 2008 2007 2008 2007 (in euros) (in euros) Cash flows from operating activities: Net Income $443 $2,932 248 2,491 Depreciation and amortization 3,863 2,070 2,630 1,597 Share-based compensation 2,467 1,979 1,347 1,056 Deferred income taxes 145 1,084 100 818 Unrealized (gain) loss on derivative instruments (206) (10) (126) (3) (Gain) loss of equity in affiliates 124 396 74 299 Change in working capital 4,123 (1,277) 3,642 (742) Net cash provided (used) by operating activities 10,959 7,174 7,915 5,516 Cash flows from investing activities: Acquisition of fixed assets and business (1,902) (9,583) (1,339) (7,439) Loans (1,029) - (700) - Sale (Purchase) of short term investments, net 8,735 (270) - - Net cash (used in) provided by investing activities 5,804 (9,853) (2,039) (7,439) Cash flows from financing activities: Repayment of capital lease obligations (194) (289) (133) (221) Cash proceeds from issuance of shares 1,149 3,149 834 2,432 Purchase of treasury stock (2,216) (1,596) (1,543) (1,224) Net cash provided by financing activities $(1,261) $1,264 (842) 987 Impact of exchange rate changes on cash and cash equivalents 8,683 2,222 (1,112) (445) Net increase (decrease) in cash, cash equivalents 24,185 807 3,922 (1,381) Cash and cash equivalents, beginning of period 46,040 61,442 40,781 54,469 Cash and cash equivalents, end of period $70,225 $62,249 44,703 53,088 Discussion of Income Statement for the Quarter Ended March 31, 2008

Revenues and Gross Margin

Revenues in the quarter increased to US$46.1 million from US$40.0 million, or by 15%, compared to the same quarter in the previous year. Because of the stronger euro, at an average exchange rate of euro 1 = US$1.50 compared to euro 1 = US$1.31 in the same quarter last year, revenues expressed at prior-year constant currency rates increased by 8%.

Revenues by region were as follows (in thousands US dollars): Three Months Ended March 31 March 31 Change 2008 2007 As Reported Constant $ North America $18,944 $17,714 7% 7% Europe 22,394 18,238 23% 10% Asia Pacific 4,725 4,086 16% 3% Total revenues $46,063 $40,038 15% 8%

License fee revenues increased by 18% compared to the same quarter last year as a result of strong activity in Europe, where large BRMS deals were signed in the quarter. Maintenance revenues grew 19% in the quarter compared to the same quarter last year. This increase is the ongoing result of ILOG's growing installed base and a solid renewal rate of maintenance contracts.

Professional services revenues grew by 6% in the quarter compared to the same quarter last year. The overall growth in professional services revenues was lower than in the previous quarters as growth in Europe was offset by stable revenues in North America and a decrease in Asia as a consequence of a lower number of engagements especially in financial services for our BRMS product line. The resulting underutilization of ILOG's consulting resources affected the related gross margin for the quarter, which stood at 11% compared to 21% for the same period in the preceding year.

Operating Expenses

The 17% increase in operating expenses over the same quarter last year is primarily due to the addition of LogicTools, additional hiring at the Shanghai Development Center (SDC) in China and in North America, as well as salary increases in January. In addition, the stronger euro affected ILOG's French-based research and development activities, in particular. ILOG has put in place strict restraints on additional hiring and is implementing cost-saving measures across the organization in order to contain the increase in operating expenses in an environment of slower-than-expected top-line growth.

On March 31, 2008, ILOG had 856 employees, down nine people compared to December 31, 2007, and higher than the 782 employees at the same time last year. This increase is mainly due to the integration of LogicTools' 43 employees and the hiring in China of 25 people for the SDC, specializing in consulting and pre-sales activities.

Research and development costs include a French research tax credit in the quarter for US$1.4 million whereas no research tax credit was recorded in the same quarter last year. This US$1.4 million tax credit is recorded as a reduction of the research and development costs and represents an additional tax credit identified for calendar 2007 for US$0.3 million and a portion of the 2008 calendar year French research tax credit for US$1.1 million as a result of a new tax law in France applicable in calendar 2008. The portion of the tax credit calculated as a percentage of the costs related to eligible research projects increases significantly and is more predictable. ILOG therefore now accrues for this portion of the French research tax credit on a quarterly basis.

Non-Operating Expenses

Net interest income and other amounted to US$0.5 million and included foreign currency exchange gains as a result of the efficiency of the hedging strategy to protect ILOG against the weakening dollar.

The income tax expense amounted to US$0.2 million compared to US$0.3 million in the same quarter last year as a result of the overall pre-tax profit decrease.

Discussion of Income Statement for the Nine Months Ended March 31, 2008

Revenues and Gross Margin

Revenues in the nine-month period increased to US$134.9 million from US$115.2 million, or by 17%, compared to the same period in the previous year. Expressed at prior year constant currency rates, revenues increased by 11%.

Nine Months Ended March 31 March 31 Change 2008 2007 As Reported Constant US$ North America US$60,288 US$53,301 13% 13% Europe 61,711 49,892 24% 12% Asia Pacific 12,851 11,967 7% -1% Total revenues US$134,850 US$115,160 17% 11%

License revenues increased by 13%, from US$53.0 million in the same nine-month period last year, to US$59.7 million this year. The growth is primarily due to the Optimization product line with CPLEX and the addition of the LogicTools business. Overall maintenance revenues increased by 22% compared to last year, reflecting ILOG's growing installed base and excellent renewal rates for maintenance contracts, especially in the Optimization and BRMS product lines.

Professional services increased by 20% for the period, year over year, attributable to the excellent growth of this activity in Europe thus mitigated by a lower growth in the U.S. For the nine-month period, gross margin for professional services decreased to 14%, as compared to 22% in the same period last year. As explained above, the lower utilization of ILOG consultants in North America and the lower number of engagements both in North America and Asia in the third quarter negatively impacted the margin.

Operating Expenses

The 18% increase in operating expenses over the prior year is primarily due to recruitments for the SDC in China, the addition of LogicTools, salary increases that were applied in the second quarter of last year, higher use of third parties in Europe, full-year impact of the office relocation in North America and additional accrual of professional services fees mainly for the Sarbanes-Oxley audit. In addition, the stronger euro affects approximately half of ILOG's expenses, which are denominated in euros. ILOG also recorded an accrual for tax exposure identified during the quarter ending December 31, 2007 in Canada in the amount of US$0.4 million.

Non-Operating Expenses

The income tax expense amounted to US$0.5 million compared to US$1.3 million in the same nine-month period last year due to the lower profit on the nine-month period.

Balance Sheet and Cash Flow Discussion

Including short-term investments, ILOG's cash position totaled US$70.2 million at March 31, 2008, up from US$54.7 million on June 30, 2007. Collection of accounts receivable improved to reach 72 days sales outstanding at the end of the third quarter compared to 77 days at the end of fiscal year 2007. In addition, the increase in deferred revenue also resulted in a US$3.0 million improvement in cash position. Excluding short-term investments, net cash used for investing activities during the nine-month period amounted to US$2.9 million, for the purchase of IT equipment and a cash advance to one of ILOG's equity investments, Prima Solutions. Cash used for financing activities netted US$1.3 million as a result of purchase of treasury stocks in the amount of US$2.2 million offset by proceeds from issuance of shares under exercise of stock options in the amount of US$1.1 million, flat since the prior quarter as few stock options were exercised during the quarter.

As of March 31, 2008, shareholders' equity was US$93.6 million, an increase of US$12.6 million from US$81.0 million at June 30, 2007, mainly as a result of the impact of the stronger euro on currency translation adjustments, the grant of additional stock-based incentives and the exercise of stock options and warrants. On March 31, 2008, ILOG had 19,208,848 shares issued and outstanding, compared to 19,062,464 at June 30, 2007, due to the exercise of 146,384 stock options and warrants.

Accounting Principles

ILOG's financial statements in U.S. dollars are prepared in accordance with generally accepted accounting principles in the United States (U.S. GAAP). Figures presented in euros have been prepared in accordance with International Financial Reporting Standards (IFRS). Following European regulation 1606/2002 dated July 19, 2002, all EU-listed companies are required to apply IFRS in preparing their financial statements for financial years commencing January 1, 2005 and thereafter.

Following the rule issued by the SEC on December 21, 2007, ILOG will no longer prepare audited U.S. GAAP financial statements in U.S. dollars, but will rather prepare audited IFRS financial statements in euros for the year ended June 30, 2008 without audited reconciliation to U.S. GAAP. As a consequence, ILOG will gradually transition its financial reporting from U.S. GAAP and U.S. dollar to IFRS and euros.

Constant Exchange Rates

Where constant exchange rates are referred to in the above discussion, current period results for entities reporting in currencies other than U.S. dollars are converted into U.S. dollars at the prior year's exchange rates, rather than the exchange rates for the current period. This information is provided in order to assess how the underlying business performed before taking into account currency exchange fluctuations.

Press Release for French Shareholders

A translation of this press release in the French language is also available.

ILOG, CPLEX, ILOG JRules, ILOG JViews and LogicNet Plus are registered trademarks of ILOG. All other trademarks are the property of their respective owners

Web site: http://www.ilog.com

Press, Susan Peters, +1-408-991-7109, speters@ilog.com, or Investors, Jerome Arnaud, +33-6-07-35-80-87, +1-408-991-7103, jarnaud@ilog.com, both of ILOG; or London, Andrew Jones of Gavin Anderson & Company, +44-20-7554-1400, for ILOG