Jeffrey Simpson Joins Guidewire Software as Chief Executive Officer

Leading insurance software company names experienced software executive to lead continued growth

SAN MATEO, Calif., February 1, 2006:

Guidewire Software®, a leading provider of solutions to property and casualty and workers' compensation insurers, today announced that Jeffrey Simpson has joined the company as chief executive officer and chairman of the Board of Directors.

A veteran of over thirty years in information technology and over twenty years in software, Mr. Simpson brings significant experience in growing and leading companies of all sizes, from startups to industry leaders. He has been CEO of multiple companies, most recently at Viewlocity, a leading provider of supply chain management solutions. He previously led major software divisions as an executive vice president at i2 Technologies and a senior vice president at Oracle.

"We were looking for a dynamic leader with the proven ability to build companies by listening to customers and developing solutions to meet their most important needs," said John Raguin, president and former chief executive officer, Guidewire. "Jeff Simpson provides the experience and leadership that Guidewire needs in order to expand on our leadership in insurance solutions today."

"Guidewire presents a unique opportunity in the insurance industry today," said Simpson. "I am excited to be joining a company with such an outstanding record for delivering world-class software solutions and ensuring customer satisfaction, and look forward to contributing to the company's success."

About Guidewire Software

Guidewire Software is a provider of core system software to the global Property/Casualty (general) insurance industry. Designed to be flexible and scalable, Guidewire solutions give insurers the capability to deliver excellent service, increase market share and lower operating costs. Guidewire InsuranceSuite™, consisting of Guidewire PolicyCenter®, Guidewire ClaimCenter® and Guidewire BillingCenter® spans the key functional areas in insurance – underwriting and policy administration, claims management, and billing. Guidewire is headquartered in San Mateo, California, with offices in Beijing, Dublin, Hong Kong, London, Munich, Paris, Sydney, Tokyo, and Toronto. For more information, please visit www.guidewire.com.