PacWest Bancorp is a bank holding company. Through its subsidiary, Pacific Western Bank, the company is focused on relationship-based business banking to small, middle-market, and venture-backed businesses nationwide. The company's Community Banking group provides real estate loans, commercial loans, and deposit and treasury management services to small and medium-sized businesses. The company's National Lending group provides asset-based, equipment, and real estate loans and treasury management services to middle-market businesses. The company's Venture Banking group provides loans and financial services focused on entrepreneurial and venture-backed businesses and their venture capital and private equity investors.

Western Alliance is a bank holding company. Through its subsidiaries, the company provides a variety of financial services to customers, including commercial real estate loans, construction and land development loans, commercial loans, and consumer loans. The company provides deposit products, including checking accounts, savings accounts, money market accounts, and other types of deposit accounts, including fixed-rate, fixed maturity certificates of deposit. In addition to commercial banking activities, the company provides other financial services to its customers, including: internet banking, wire transfers, electronic bill payment and presentment, lock box services, courier, and cash management services.