Cathay General Bancorp operates as the holding company for Cathay Bank that offers various commercial banking products and services to individuals, professionals, and small to medium-sized businesses in the United States. The company offers various deposit products, including passbook accounts, checking accounts, money market deposit accounts, certificates of deposit, individual retirement accounts, and public funds deposits. It also provides loan products, such as commercial mortgage loans, commercial loans, small business administration loans, residential mortgage loans, real estate construction loans, and home equity lines of credit, as well as installment loans to individuals for household, and other consumer expenditures. In addition, the company offers trade financing, letter of credit, wire transfer, forward currency spot and forward contract, safe deposit, collection, automatic teller machine, Internet banking, investment, and other customary bank services, as well as securities and insurance products. Cathay General Bancorp was founded in 1962 and is headquartered in Los Angeles, California.

Pacific Premier Bancorp, Inc. operates as the bank holding company for Pacific Premier Bank that provides various banking products and services in the United States. The company accepts deposit products, which includes checking, money market, savings accounts, and certificates of deposit. Its loan portfolio includes commercial real estate owner and non-owner-occupied, multifamily, construction and land, franchise real estate secured, and small business administration (SBA); revolving lines of credit, term loans, seasonal loans, and loans secured by liquid collateral; one-to-four family and home equity lines of credit loans; and small balance personal unsecured loans and savings account secured loans. It also offers cash management, online and mobile banking, and treasury management services, as well as payment processing, remote capture, and automated clearing house payment capabilities. In addition, it operates as a custodian for alternative assets held in qualified self-directed IRA accounts, including investments in private equity, real estate, notes, cash, and other non-exchange traded assets; and provides real-property and non-real property escrow services. The company serves small and middle-market businesses, corporations, professionals, real estate investors, non-profit organizations, and consumers. The company was founded in 1983 and is headquartered in Irvine, California.

Hope Bancorp, Inc. operates as the bank holding company for Bank of Hope that provides retail and commercial banking services for businesses and individuals in the United States. It accepts personal and business checking, money market, savings, time deposit, and individual retirement accounts. The company also offers loans comprising commercial and industrial loans to businesses for various purposes, such as working capital, purchasing inventory, debt refinancing, business acquisitions, international trade finance, other business-related financing, and loans syndication services; commercial real estate loans; residential mortgage loans; small business administration loans; and consumer loans, such as single-family mortgage, home equity, automobile, credit card, and personal loans. In addition, it provides internet banking and bill-pay, remote deposit capture, lock box, and ACH origination services; treasury management services; foreign currency exchange transactions; interest rate contracts and wealth management services; automated teller machine services; and engages in investment activities. Hope Bancorp, Inc. was founded in 1986 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.

OP Bancorp operates as the bank holding company for Open Bank that provides banking products and services in California. It offers demand, checking, savings, money market, and time deposit accounts, as well as certificates of deposit. The company also provides commercial real estate, small business administration, commercial and industrial business, single-family residential, term, consumer, and home mortgage loans; trade financing products; and letters of credit, and SWIFT and export advice. In addition, it offers debit and credit card, online transfer and bill payment, electronic delivery of customer statements, and mobile banking solutions for iPhone and Android phones, including remote check deposit with mobile bill pay; direct deposits, cashier's checks, person to person payments, wire transfers, and automated clearing house (ACH) services; and cash management services, including balance reporting, transfers between accounts, wire transfer initiation, ACH origination, and stop payment services, as well as remote deposit capture, positive pay, zero balance accounts, and sweep accounts. The company operates full branch offices in Downtown Los Angeles, Los Angeles Fashion District, Los Angeles Koreatown, Gardena, Buena Park, and Santa Clara in California; and Carrollton, Texas; and operates loan production offices in Pleasanton, California; Atlanta, Georgia; Aurora, Colorado; and Lynnwood in Washington. The company was founded in 2005 and is headquartered in Los Angeles, 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.