Ultimate Currency Exchange is a Canadian company providing foreign exchange services in Ottawa and online across Canada. It buys and sells many currencies with no commission fees and offers rates better than banks. Reviews note friendly and professional staff, with efficient online orders and seamless pick-up. Customers report decent rates and the availability of smaller denominations. However, some experiences include disappointment over not receiving requested small bills after a transaction was processed, an instance of a staff member improperly keeping change, and a warning to be careful of surroundings due to safety concerns.