It was formed in 2002 to fund the Bournemouth Passenger Transport Association's museum fleet, but collapsed in July 2011.

Shamrock Buses was established in 2002 to help create funds for the maintenance and restoration of the Bournemouth Passenger Transport Association (BPTA) museum fleet.

Its fleet initially consisted of four Daimler Fleetlines; these were replaced by newer Leyland Olympians a year later.

[3] From early 2009, Shamrock Buses invested in buying a few second hand single deck low floor buses for the bus services run on contract to Bournemouth and Poole Borough Councils.

These were used on route 8, which the company began operating when Poole-based independent Roadliner collapsed in August 2009.