The Stormers are based in Cape Town and centred around the Western Province union, but also draw players from the Boland Cavaliers (Wellington).
Through 2005, they also drew players from the Eagles (George), which meant that they drew players from all three unions in the Western Cape Province.
However, the general realignment of franchise areas resulting from the expansion of the competition resulted in the Eagles being moved to the Spears who are managed by the Southern and Eastern Cape franchise and was supposed to enter the Super 14 in 2007.
In 1996, the Stormers competed in the Super 12 as Western Province. In 1997, they did not compete, the 4th South African team being the Orange Free State. The Orange Free State is now the Central Cheetahs.
They have only ever reached the final of the Super 12/14 competition once in 2010, having been eliminated in the semi-finals in their other best years, 1999, 2004, 2011 and 2012.
Super 15 postions
2012 .. 3rd/4th (beaten in the Semi-finals by the Sharks after
finishing 1st and winning SA Conference)
2011 .. 3rd/4th (beaten in the Semi-finals by the Crusaders after winning SA Conference)
Super 14 positions
2010 .. 2nd
2009 .. 10th
2008 .. 5th
2007 .. 10th
2006 .. 11th
Super 12 positions
2005 .. 9th
2004 .. 3rd .. (lost semi-final to Crusaders)
2003 .. 9th
2002 .. 7th
2001 .. 7th
2000 .. 5th
1999 .. 4th .. (lost semi-final to Otago Highlanders)
1998 .. 9th
1996 .. 11th