They have competed in lower divisions until 2006, when they have won the third-tier championship and gained promotion to the Nemzeti Bajnokság I/B.

In May 2009, SKC received a surprise request from the Hungarian Handball Federation to replace the financially struggling Tajtavill-Nyíradony and join the top level championship.

Siófok met all demands and unexpectedly started the 2009–10 season in the NB I.

Despite being newcomers, the team performed well and finished in the respectable seventh position.

[2][3] The following table shows in detail Siófok KC kit manufacturers and shirt sponsors by year: