Antigua Commercial Bank (ACB) is the largest indigenous commercial bank in Antigua & Barbuda, with an asset base of over one billion Eastern Caribbean Dollars.

ACB was incorporated on October 20, 1955, as The Antigua Co-operative Bank Limited, when it registered a share capital of EC$100,000 and became the country's first indigenous bank and public company. The Bank’s operations started on January 3, 1956, at the former Chelsea Building on Newgate Street in St. John’s, its first location.

In its early years, ACB became well known for assisting entrepreneurs and small business owners, who started their operations as national pioneers. The Bank also allowed customers to open savings accounts with a minimum amount as low as a penny (2 cents), thus earning the name “Penny Bank” in its formative years.

ACB has since experienced tremendous growth over the years, emerging from a Savings and Loans Association, to a full-service commercial bank, offering General Banking, Personal Banking, Corporate Banking and Mortgage and Trust Services. The Bank’s mission is "to be the leading financial services provider by exceeding our stakeholders’ expectations through exemplary service, innovative products and adapting to an ever-changing environment."

On October 25, 1969, ACB moved from its original location, to Thames & St. Mary’s Streets in St. John’s, where its Head Office is now located. The Bank’s three branches are supported by 10 Automated Teller Machines (ATMs), including a multicurrency ATM, which is located at the lower floor of the terminal of the VC Bird International Airport and one on Barbuda.

The Bank also operates a fully owned subsidiary, ACB Mortgage & Trust Company Limited, which was founded on October 1, 1987, and has since become the largest provider of mortgage financing in Antigua. The Bank serves customers from the ACB Financial Centre (mortgage and retail lending), the Village Walk Branch and the ACB Head Office.

Antigua Commercial Bank has had many accomplishments as the nation’s leading indigenous financial institution. Apart from offering attractive credit products to empower customers to own land, home and business, and to attain a high level of education, the Bank also takes its corporate social responsibility seriously, as it helps to improve the quality of lives of the people of Antigua & Barbuda through culture, education, sport and the community development.