Lars-Göran Andersson and later Tomita sensei. But according to Lasses own website the club was founded 72 (being a section of a judo club before that)
http://www.torsbyaikido.se/index.php?edit=lasse
I think that the main reason that Tomita is excluded from saitosensei.com is the fact that it seems that he hasn´t contributed to the site.