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.

Bank of Marin Bancorp operates as the holding company for Bank of Marin that provides a range of financial services primarily to small to medium-sized businesses, not-for-profit organizations, and commercial real estate investors in the United States. The company offers personal and business checking and savings accounts; and individual retirement, health savings, and demand deposit marketplace accounts, as well as time certificates of deposit, certificate of deposit account registry, and insured cash sweep services. It also provides commercial real estate, commercial and industrial, and consumer loans, as well as construction financing and home equity lines of credit. In addition, the company offers merchant and payroll services; commercial equipment leasing program; payment solutions; treasury management services; credit cards; and mobile deposit, remote deposit capture, automated clearing house, wire transfer, and image lockbox services. Further, it provides wealth management and trust services comprising customized investment portfolio management, financial planning, trust administration, estate settlement, and custody services, as well as 401(k) plan services; and automated teller machines, and telephone and digital banking services. The company was incorporated in 1989 and is headquartered in Novato, California.

Plumas Bancorp operates as the bank holding company for the Plumas Bank that provides various banking products and services for small and middle market businesses, and individuals in Northeastern California and Northwestern Nevada. The company accepts various deposits, such as checking, money market checking, business sweep, public funds sweep, savings, time deposit, and retirement accounts. Its loan portfolio comprises of term real estate, commercial, and industrial term loans; government-guaranteed and agricultural loans, as well as credit lines; consumer, automobile, and home equity loans; land development and construction loans; and small business administration loans. In addition, the company provides remote deposit, telephone and mobile banking, internet banking with bill-pay options, cashier's check, bank-by-mail, automated teller machine, night depository, safe deposit box, direct deposit, electronic funds transfer, and other customary banking services. Plumas Bancorp was founded in 1980 and is headquartered in Reno, Nevada.

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.

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.

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.