TIBCO Software Reports Third Quarter Financial Results

PALO ALTO, Calif., September 23, 2005 - TIBCO Software Inc. (Nasdaq:TIBX), a
leading business integration and process management software company that
enables real-time business, today announced results for its third fiscal
quarter ended August 28, 2005. Total revenues for the third quarter were
$105.9 million. License revenues for the third quarter were $44.4 million.
Net income for the quarter calculated in accordance with generally accepted
accounting principles was $13.8 million or $0.06 per share on a fully
diluted basis.

TIBCO had non-GAAP net income for the third fiscal quarter of $10.2 million.
TIBCO’s non-GAAP net income per share on a fully diluted basis was $0.05 for
the quarter. Non-GAAP results exclude stock-based compensation charges,
amortization of acquired intangibles and restructuring charges and assume a
non-GAAP effective tax rate of 38%.

"This quarter was a solid improvement over the past few quarters in many
areas of our business,” said Vivek Ranadivé, Chairman and CEO of TIBCO
Software. "We continue to deliver on our vision of building out a platform
for application and process integration that is an essential element of any
company’s information technology infrastructure. I’m confident about our
market position, the potential of our technology and the strength of our
business as we begin our fourth quarter and prepare ourselves for 2006."

Highlights for TIBCO’s Third Fiscal Quarter of 2005
During Q3, TIBCO added 65 new customers and made significant sales to both
new and existing customers, including Bank of New York Europe, A.G. Edwards,
Forzani Group, CBI Distribution and Bank of America.

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