Basingstoke Bluefins was formed on 1st January 2005 and is the result of a merger between Britannia Swimming Club and Basingstoke & District Amateur Swimming Club. The new club is now the largest club in Hampshire. With more than 800 members Basingstoke Bluefins has the resources to adopt the best practices in swimming, including SWIM 21 and Long Term Athlete Development (LTAD). The new club will have increased influence in the Borough and the ability to offer better opportunities for to all.

Basingstoke Bluefins is based at The Aquadrome, at Basingstoke Leisure Park but also uses other pools around the town.