Western Alliance Bancorporation is a regional bank holding company based in Phoenix, Arizona, founded in 1994. It ranks among the largest banks in the United States, with over $85 billion in assets as of 2024. The company operates through several banking subsidiaries, each catering to different markets and customer segments, including commercial and retail banking.

The primary subsidiary, Western Alliance Bank, provides a wide range of banking solutions, including commercial banking, retail banking, and mortgage lending. It serves clients nationwide with a focus on personalized service and community engagement. The bank is recognized for its outstanding customer service and has received accolades for its leadership and governance.

Western Alliance Bancorporation is dedicated to meeting the needs of local businesses, homeowner associations, and individual customers. It emphasizes inclusive hiring practices and community involvement, making it a trusted partner in the financial landscape of the western United States.