Houston, Texas – June 16, 2008 — PROS Holdings, Inc. (NYSE: PRO), a leader in pricing and revenue optimization software, announces the successful completion of the 2008 PROS China Pricing and Revenue Management Workshop. The workshop was conducted in Mandarin Chinese and was attended by delegates representing the major airlines in the area. Topics of presentation at the 2008 China Workshop included:

• Revenue Management & Pricing
• Cargo Revenue Management
• Group Revenue Management
• Performance Measurement
• Real Time Dynamic Pricing (RTDP)
• Revenue Management & Sales Channel Control
• Using PROS RMS forecasts for the CIRF (Close-in re-fleeting) System
• Centralized Inventory Control versus Decentralization
• Long-Tail Theory & its Application in Revenue Management and E-commerce
• Olympic Games Market Demand Analysis
• Over Booking & Denied Boarding Handling
• Revenue Management Data Analysis Methodology

"PROS is pleased to offer this annual workshop in Mandarin Chinese. This year PROS brought together the Pricing and Revenue Management community to discuss implementable business strategies to address current business challenges in the Chinese market. The key to the continuous success of this workshop is the ever increasing delegate enthusiasm about PROS and their active participation in the workshop," said Dr. Siliang Yang, PROS. This workshop is designed for Mandarin-speaking Pricing and Revenue Management practitioners.

The Fourth Annual PROS China Workshop was co-hosted by Hainan Airlines and held May 29-30, 2008, in Kangle Garden HNA Resort near Xinglong County in China's Hainan Province . Planning is underway for the Fifth Annual PROS China Workshop to be co-hosted by Air China.

About PROS
PROS Holdings, Inc. (NYSE: PRO) is a leading provider of pricing and revenue optimization software products, specializing in price analytics, price execution and price optimization. By using our software products, our customers gain insight into their pricing strategies, identify detrimental pricing practices, optimize their pricing decision-making and improve their business processes and financial performance. PROS' software products incorporate advanced pricing science, which includes operations research, forecasting and statistics. PROS’ high performance software architecture supports real-time high volume transaction processing and allows PROS to handle the processing and database requirements of the most sophisticated and largest customers, including customers with hundreds of simultaneous users and sub-second electronic transactions. PROS provides professional services to configure our software products to meet the specific pricing needs of each customer. PROS has implemented over 200 solutions across a range of industries in more than 40 countries. Founded in 1985, PROS is headquartered in Houston, Texas. Today, PROS has over 300 employees, more than 100 with advanced degrees and 20 with Ph.D.s.

Forward-looking Statements
This press release contains forward-looking statements, including statements about the functionality of the PROS products and their ability to manage and forecast across an enterprise. The forward-looking statement contained in this press release are based upon PROS historical performance and its current plans, estimates and expectations and are not a representation that such plans, estimates or expectations will be achieved. Factors that could cause actual results to differ materially from those described herein include PROS ability to develop new products and product enhancements with the required functionality desired and PROS ability to implement and support successfully its products to the expectations of its customers.  Additional information relating to the uncertainty affecting the PROS business are contained in PROS filings with the Securities and Exchange Commission. These forward-looking statements represent PROS expectations as of the date of this press release. Subsequent events may cause these expectations to change, and PROS disclaims any obligations to update or alter these forward-looking statements in the future, whether as a result of new information, future events or otherwise.

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Media Contacts:
PROS
Corporate Communications
(713) 335-5197
CorpComm@prospricing.com