Dr. Rainer Kornfeld em.
- Attorney at Law in Vienna 1983 – 2021
- Co-Chair IBA Committee R (Technology) 2003 – 2004
- President of the Austrian Sailing Federation 2009 – 2012
Multiple lectures at the annual conference of the International Bar Association in the field of IT-Law; Lectures in the area of Transport Law.
- Vienna Bar Association (emeritus as of 30 August 2021)
- Vienna Law Society (WJG)
- ADV Austrian Digital Value
- German Association for Transportation Law (DGTR)