Assiniboine Credit Union (ACU) is a credit union based in Winnipeg, Manitoba. ACU was formed in 1943 by 15 Winnipeg Electric Company employees who got together to form the credit union. They named the new credit union after the street their company headquarters was on—Assiniboine Avenue. ACU has 18 branches in Winnipeg and Northern Manitoba. The credit union merged with Astra and Vantis credit unions in 2007.