Ariba,(R) Inc. (Nasdaq:ARBA), the leading spend management solutions provider, today announced that Robert Calderoni, the company's Chairman and Chief Executive Officer, has been named among the "100 Most Influential People in Finance" by Treasury & Risk Management magazine. Designed to recognize individuals who have had and will have meaningful impact on the finance industry, the annual list includes executives, bankers, economists, consultants and technology vendors from around the world.

"Singling out the 100 most influential people in finance each year is probably Treasury & Risk Management's hardest task," said Pat Wechsler, T&RM's editorial director. "The search is not just for the smartest or most successful, but those who have been making waves in the last 12 months."

Mr. Calderoni was selected as a "Business Intelligent" based on his contributions to "teaching finance to do more than Excel." With more than 20 years of experience as a Fortune 500 financial and operations executive, Mr. Calderoni has intimate knowledge of change management and a deep understanding of how technology can optimize a company's spend practices. He has used his knowledge and experience to build Ariba into a key business partner that helps organizations move beyond simply automating the purchasing process to bringing procurement science to every dollar of spend. Ariba's spend management solutions enable the people, processes and technology needed to drive rapid, sustainable savings and achieve operational excellence.

"The combination of macroeconomic trends like globalization, regulatory compliance, and unanticipated economic, social and political events make it harder than ever for companies to be profitable and competitive," said Calderoni. "At Ariba, we are exclusively focused on delivering solutions to help companies manage these challenges and deliver bottom-line results."

About Treasury & Risk Management

Treasury & Risk Management is an award-winning business-to-business publication with a subscription base of 47,000 CFOs, treasurers, controllers and other senior finance executives at the nation's largest companies. Besides the magazine, the T&RM franchise publishes e-newsletters and organizes a series of senior-level conferences on various subjects in finance and treasury universe. www.treasuryandrisk.com.

About Ariba, Inc.

Ariba, Inc. is the leading provider of Spend Management solutions to help companies realize rapid and sustainable bottom line results. Successful companies around the world in every industry use Ariba Spend Management(TM) software and services. Ariba can be contacted in the U.S. at 650-390-1000 or at www.ariba.com.

Copyright (C) 1996 - 2006 Ariba, Inc.

Ariba, the Ariba logo, AribaLIVE and SupplyWatch are registered trademarks of Ariba, Inc. Ariba Spend Management, Ariba Spend Management. Find it. Get it. Keep it., Ariba. This is Spend Management, Ariba Solutions Delivery, Ariba Analysis, Ariba Buyer, Ariba Category Management, Ariba Category Procurement, Ariba Contract Compliance, Ariba Contracts, Ariba Contract Management, Ariba Contract Workbench, Ariba Data Enrichment, Ariba eForms, Ariba Electronic Invoice Presentment and Payment, Ariba Invoice, Ariba Sourcing, Ariba Spend Visibility, Ariba Travel and Expense, Ariba Procure-to-Pay, Ariba Workforce, Ariba Supplier Network, Ariba Supplier Connectivity, Ariba Supplier Performance Management, Ariba PunchOut, Ariba QuickSource, PO-Flip, Ariba Settlement, Ariba Spend Management Knowledge Base, Ariba Ready, Ariba Supply Lines, Ariba Supply Manager, Ariba LIVE and It's Time for Spend Management are trademarks or service marks of Ariba, Inc. Ariba Proprietary and Confidential. All rights reserved. Patents pending. All other trademarks are property of their respective owners.

Ariba Safe Harbor

Safe Harbor Statement under the Private Securities Litigation Reform Act 1995: Information and announcements in this release involve Ariba's expectations, beliefs, hopes, plans, intentions or strategies regarding the future and are forward-looking statements that involve risks and uncertainties. All forward-looking statements included in this release are based upon information available to Ariba as of the date of the release, and we assume no obligation to update any such forward-looking statements. These statements are not guarantees of future performance and actual results could differ materially from our current expectations. Factors that could cause or contribute to Ariba's operating and financial results to differ materially from its current expectations include, but are not limited to: delays in development or shipment of new versions of Ariba's products and services; lack of market acceptance of Ariba's existing or future products or services; inability to continue to develop competitive new products and services on a timely basis; introduction of new products or services by major competitors; the ability to attract and retain qualified employees; difficulties in assimilating acquired companies; long and unpredictable sales cycles and the deferrals of anticipated orders; declining economic conditions; inability to control costs; changes in the company's pricing or compensation policies; significant fluctuations in our stock price; the outcome of and costs associated with pending or potential future regulatory or legal proceedings; the impact of our acquisitions, including the disruption or loss of customer, business partner, supplier or employee relationships; and the level of costs and expenses incurred by Ariba as a result of such transactions. Factors and risks associated with its business, including a number of the factors and risks described above, are discussed in Ariba's Form 10-K filed December 7, 2005 and in its Form 10-Q filed May 15, 2006.