FOR IMMEDIATE RELEASE

PROS Revenue Management Announces Record Third Quarter and YTD 2001

November 20, 2001-Houston- PROS Revenue Management, the world's leader in revenue management science and the pioneer and dominant provider of revenue management to the airline and energy industries, today announced that third quarter, although impacted by the tragic events of September 11, 2001, was a record revenue quarter for the company, and the company achieved low double digit operating income levels.  PROS posted revenue in the first nine months of the year of $27.7 million, which is a 36% increase over the previous year.  Record profits, along with positive cash flow, enhanced PROS' strong balance sheet.  PROS also posted record annual revenues and profits for 2000.

"Our goal is to be the clear leader in the new Revenue Pricing Optimization category," says Bert Winemiller, president and CEO of PROS.  "Our financial performance of record revenues, profits, and cash flow will enable PROS to maintain its commitment to achieving this goal and provide high value solutions to our clients."

PROS Pricing Revenue Optimization Solutions' major milestones in the first nine months of 2001 include:

o In the airline industry, PROS completed signed contracts with airline companies, including Aeropostal, Air Jamaica, All Nippon Airways, Cathay    Pacific, Delta Air Lines, Korean Air, Singapore Airlines, South African Airways, and TWA/American Airlines.
o Contracts were signed in the energy industry with major US gas pipeline companies.
o PROS concluded its second contract for Network Optimization (O&D) in the airline industry.  This product will become the standard for the       industry.
o Energy Pricing & Revenue Optimization Seminars were held with participation from industry leaders and Accenture.
o PROS hosted its first Pricing Optimization Web Seminar which covered pricing optimization principles common among virtually all industries.       Participants included executives of some of the strongest Fortune 500 companies.
o PROS completed the move of its headquarters to the ComTech Center in midtown Houston.  This state-of-the-art facility will assist in the       support of PROS' expansion both internally and into other industries.
o PROS announced its 9th Annual Pricing and Revenue Optimization Conference, the largest revenue management conference in the world, with     industry leaders, analysts and representatives from industries such as airline, energy, healthcare, hospitality, broadcast, rental car, and rail.  The    Conference will take place March 3-7, 2002.


About PROS
PROS Revenue Management is the world's leader in pricing and revenue optimization solutions and the pioneer and dominant provider of revenue management to the airline and energy industries. PROS provides system solutions to the airline, cargo, rail, energy, healthcare, and broadcast industries, and has delivered over 230 systems to more than 90 clients in 39 countries. PROS' clients include 15 of the top 25 carriers in the airline industry.

The PROS mission is to maximize the revenue of each client using PROS' world-leading revenue management science, systems solutions, and best practices business consulting. PROS' clients report annual incremental revenue increases of 6-8% as a result of revenue management. PROS' solutions forecast demand, optimize inventory, and provide dynamic pricing to maximize revenue.

Founded in 1985 in Houston, PROS Revenue Management has a six-year compounded revenue growth of 40%, in large part due to the intellectual capital of its staff. Nearly half of PROS' professional staff has advanced degrees and the staff speaks a cumulative total of 26 languages. The company is profitable with Year 2000 revenue of $29 million. For more information on PROS Revenue Management, please visit www.prosRM.com or call 713-335-5253.

PROS' 9th Annual Pricing and Revenue Optimization Conference will be March 3-7, 2002.  This premiere event will feature industry leaders participating in presentations, panel discussions, and product workshops.  Join industry colleagues, academics, and representatives from the international business community at large to discuss relevant topics specific to the airline industry and to the practice of revenue management.  We have broadened our scope this year to include separate sessions related to other industries benefiting from revenue management, such as Energy, Healthcare, Hospitality, Broadcast, Rental Car, and Rail.

More information and formal invitations are coming soon. In the meantime, be sure to save the following dates on your calendar:

March 3-7, 2002
Houstonian Hotel, Club & Spa
Houston, Texas

If you have further questions or if you are interested in speaking at this event, joining discussions as a panelist, or becoming a sponsor, please contact Andrea Balfour at abalfour@prosRM.com.

Contact:
Candy Haase - VP Marketing
713-335-5253 / 713-335-8144 - fax
chaase@prosRM.com