In season 2000/01 and 2001/02 FC Thun played in national league B (second highest tier). The club was promoted to the top tier in 2002 (for the first time since 1954/55), and played on the highest level of Swiss football for six consecutive years. In 2008 Thun was relegated and played two season in the Swiss Challenge League (2008-10). Back in the top tier since 2010, FC Thun was able to qualify twice for the Europa League.

Suppliers of FC Thun 2000-2009: 

2008-2013 Erima

2005-2008 Hummel

1999-2005 Adidas