Alberta Treasury Branches, doing business as ATB Financial, is a financial institution and Crown corporation owned by the Province of Alberta. ATB operates in Alberta only, providing financial services to nearly 700,000 Albertans and Alberta-based businesses. ATB has 172 branches and 135 agencies, serving a total of 243 communities in Alberta. Wealth management services are offered under the name ATB Investor Services or ATBIS. ATB has more than 5,300 employees.Headquartered in Edmonton, Alberta, Canada, with total assets of C$43.1 billion (2015 Annual Report), ATB is the largest Alberta-based financial institution.