Torrey Pines Bank operates seven offices in San Diego Countyandbegan with $20 million in capital in May 2003. Today the bank has total capital of $112 million. Alliance Bank, headquartered in Phoenix,opened in February 2003 with initial capital of $20 million and now operates 11 branches statewide. Capital at Alliance Bank has increased to $106 million. Both banks focus on the business market with a modelthat provides comprehensive 'large bank'servicesthrough a single localrelationship manager with decision-making authority.

"Reaching $1 billionin assetsfor both of these banks in their first six years is a great milestone thatreflects on our strong local management and bankers. It alsounderscores thegrowing valuecustomersare placing in having a bank withboth financialstrength and local bankers who understand their market," said Robert Sarver, Chairman and CEO of Western Alliance Bancorporation. "Even intough local market conditions, all our banks are continuingtogrow innew relationships with record deposit growthof $740 million in the first six months,"Sarver added.

About Western Alliance Bancorporation

Western Alliance Bancorporation is the parent company of Bank of Nevada, First Independent Bank of Nevada, Alliance Bank of Arizona, Torrey Pines Bank, Alta Alliance Bank, Miller/Russell & Associates, Shine Investment Advisory Services, Premier Trust, and PartnersFirst. These dynamic organizations provide a broad array of banking, leasing, trust, investment, and mortgage services to clients in Nevada, Arizona and California, investment services in Colorado, and bank card services nationwide. Staffed with experienced financial professionals, these organizations deliver a broader product array and larger credit capacity than community banks, yet are empowered to be more responsive to customers' needs than larger institutions. Additional investor information can be accessed on the Investor Relations page of the company's website, westernalliancebancorp.com.

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