Airdrieonians
Peterhead
Montrose
Alloa
East Fife
Stenhousemuir
Stranraer
Forfar
Cove Rangers
Falkirk
Dumbarton
Queen of South
Kelty Hearts
Brechin
Clyde
Ayr
Dunfermline
Arbroath
Queen's Park
Albion
Raith
Hamilton
Stirling
Annan Athletic
FC Edinburgh
Inverness CT
Livingston
Cowdenbeath
Morton
Partick
The Scottish League One, known as William Hill League One for sponsorship reasons, is the third tier of the Scottish Professional Football League, the league competition for men's professional football clubs in Scotland. The Scottish League One was established in July 2013, after the Scottish Professional Football League was formed by a merger of the Scottish Premier League and Scottish Football League.