Thomas has been Vice-President of the ISA since 2015 and was elected President of the ISA in September 2018. He started slacklining in 2007 and has been highlining since 2008. As president of the national-level Swiss Slackline Federation since 2013 and founding member of Slack Attack, a local slackline association in Bern founded in 2009, he has nearly a decade of experience in slackline-related volunteer work and community organization. Standing out, Thomas has volunteered and helped organize numerous events such as Bern City Slack Festival, Transalp Waterline Tour, ISA Safety Event, The Highline Extreme, Swiss Slackline Championships Open. Consequently he is one of the driving forces behind logistics and organizational development of ISA. In addition to the above, Thomas consults and coordinates efforts regarding the development of safety standards. To this effect he has been involved in lots of original slackline-related research and is responsible for the publication of numerous safety recommendations, which were published by Swiss Slackline at first and now can be found on the ISA SlackED data platform.