This is the full list of second tier champions since the four-division structure was introduced:
1994/95 - Raith Rovers
1995/96 - Dunfermline Athletic
1996/97 - St Johnstone
1997/98 - Dundee
1998/99 - Hibernian
1999/00 - St Mirren
2000/01 - Livingston
2001/02 - Partick Thistle
2002/03 - Falkirk
2003/04 - Inverness Caledonian Thistle
2004/05 - Falkirk
2005/06 - St Mirren
2006/07 - Gretna
2007/08 - Hamilton Accies
2008/09 - St Johnstone
2009/10 - Inverness Caledonian Thistle
2010/11 - Dunfermline Athletic
2011/12 - Ross County
2012/13 - Partick Thistle
2013/14 - Dundee
2014/15 - Heart of Midlothian
2015/16 - Rangers
2016/17 - Hibernian
2017/18 - St Mirren