CVB Financial Corp. operates as a bank holding company for Citizens Business Bank, a state-chartered bank that provides banking and financial services to small to mid-sized businesses and individuals. It offers checking, savings, money market, and time certificates of deposit products for business and personal accounts; and serves as a federal tax depository for business customers. The company also provides commercial lending products comprising lines of credit and other working capital financing, accounts receivable lending, and letters of credit; agriculture loans to finance the operating needs of wholesale dairy farm operations, cattle feeders, livestock raisers, and farmers; lease financing services for municipal governments; commercial real estate and construction loans; and consumer financing products, including automobile leasing and financing, lines of credit, credit cards, home mortgages, and home equity loans and lines of credit. In addition, it offers various specialized services, such as treasury management systems for monitoring cash flow, merchant card processing program, armored pick-up and delivery, payroll services, remote deposit capture, electronic funds transfers, wires and automated clearinghouse, and online account access. Further, the company provides trust services, such as fiduciary services, mutual funds, annuities, 401(k) plans, and individual investment accounts. CVB Financial Corp. was founded in 1974 and is headquartered in Ontario, California.

Banc of California, Inc. operates as the bank holding company for Banc of California that provides various banking products and services in California. The company offers deposit products, such as checking, savings, money market, demand, and time deposits; certificates of deposit; retirement accounts; and safe deposit boxes. It also provides real estate loans to professional developers and real estate investors for the acquisition, construction, refinancing, renovation, and on-going operation of commercial real estate properties; commercial real estate mortgage, residential real estate mortgage, and real estate construction and land loans; commercial loans and leases, such as equipment finance, other asset-based, venture capital, secured business, warehouse, and other lending services; small business administration loans; and consumer loans comprising personal, auto, and other loans, as well as home equity and revolving lines of credit. In addition, the company offers international banking, multi-state deposit, and asset and investment management services, as well as cash and treasury management services; and online, mobile, remote deposit, and telephone banking services. It serves small and middle-market businesses, venture capital firms, non-profit organizations, business owners, entrepreneurs, professionals, and high-net worth individuals. Banc of California, Inc. was founded in 1941 and is headquartered in Los Angeles, California.

California BanCorp. operates as the bank holding company for California Bank of Commerce, N.A. that provides various financial products to individuals, professionals, and small- to medium-sized businesses in California. The company offers checking, personal and business savings, and money market accounts, as well as certificates of deposit. It also provides home equity lines of credit, business loans and lines of credit, commercial real estate and construction loans, small business administration loans, letters of credit, and personal and business credit cards. In addition, the company provides cash vault, sweep accounts, and remote deposit capture services; online and mobile banking services; courier service; lockbox services; and merchant services. The company was formerly known as Southern California Bancorp and changed its name to California BanCorp. in August 2024. California BanCorp. was founded in 2001 and is headquartered in San Diego, California.

Sierra Bancorp operates as the bank holding company for Bank of the Sierra that provides retail and commercial banking services to individuals and businesses in California. It accepts various deposit products, such as checking accounts, savings accounts, money market demand accounts, time deposits, retirement accounts, and sweep accounts. The company's loan products include agricultural, commercial, consumer, real estate, construction, and mortgage loans. It also offers automated teller machines; electronic point-of-sale payment alternatives; online and automated telephone banking services; and remote deposit capture and automated payroll services for business customers. Sierra Bancorp was founded in 1977 and is headquartered in Porterville, California.

Community West Bancshares operates as the bank holding company for the Central Valley Community Bank that provides various commercial banking services to small and middle-market businesses and individuals in the central valley area of California. The company accepts demand, savings, and time deposits; certificates of deposit; and non-interest-bearing demand deposits, as well as provides NOW and money market accounts. It also provides products, such as commercial and industrial loans, as well as loans secured by crop production and livestock; owner occupied and investor commercial real estate, real estate construction and other land, agricultural real estate, and other real estate loans; and equity loans and lines of credit, and installment and other consumer loans. In addition, the company offers domestic and international wire transfer, inquiry, account status, bill paying, account transfers, and cash management and other customary banking services. Community West Bancshares was formerly known as Central Valley Community Bancorp and changed its name to Community West Bancshares in April 2024. Community West Bancshares was founded in 1979 and is based in Fresno, California.

Oak Valley Bancorp operates as the bank holding company for Oak Valley Community Bank that provides a range of commercial banking services to individuals and small to medium-sized businesses in the Central Valley and the Eastern Sierras. The company's deposits products include checking and savings, money market, health savings, and individual retirement accounts, as well as certificates of deposit. It also offers commercial real estate loans, commercial business lending and trade finance, and small business administration lending, as well as consumer loans, including automobile loans, home mortgages, credit lines, and other personal loans. In addition, the company provides online and mobile banking, remote deposit capture, merchant, night depository, extended hours, wire transfer of funds, note collection services, and automated teller machines. The company was incorporated in 1990 and is headquartered in Oakdale, California.

United Security Bancshares operates as the bank holding company for United Security Bank, a state-chartered bank that provides a range of commercial banking services to the business and professional community, and individuals in California. The company accepts various deposit products, including personal and business checking accounts, savings accounts, interest-bearing negotiable order of withdrawal accounts, money market accounts, and time certificates of deposit. It also provides real estate mortgage, commercial and industrial, real estate construction and development, and consumer loans, as well as agricultural, installment, and student loans. In addition, the company offers online and mobile banking, safe deposit boxes, wire transfers, payroll direct deposit, cashier's check, cash management, and foreign draft services, as well as interactive teller machines; and person-to-person and bank-to-bank transfers for consumer customers. United Security Bancshares was founded in 1987 and is headquartered in Fresno, California.

California BanCorp operates as the bank holding company for California Bank of Commerce that provides commercial banking services to businesses and professionals in California. It accepts various deposit products, including commercial checking, savings, and money market accounts, as well as certificates of deposit. The company also offers asset-based lending loans; commercial letters of credit; construction and development loans; real estate loans, such as commercial real estate loans and other loans; small business administration (SBA) loans, including SBA 7(a) and SBA 504 loans; consumer loans, such as secured and unsecured installment loans, and revolving lines of credit; and commercial and industrial loans, including term loans, working capital, accounts receivable and inventory financing, and other business loans to the dental and veterinary industries, contractors, and emerging companies. In addition, it provides foreign exchange, treasury and cash management, and online and mobile banking services. California BanCorp was founded in 2007 and is headquartered in Oakland, California.