Global tourism and business events industry consulting firm, GainingEdge, has announced that Thomas Reiser will join the company as partner, effective May 15, 2026.
Reiser brings more than 25 years of international leadership experience in association management and business events, with a track record of leading and transforming global organisations.
His career spans senior executive roles across both associations and leading association management companies and professional congress organisers.
Most recently, Reiser served as executive director of the International Society on Thrombosis and Haemostasis, where he led a period of significant expansion, growing the organisation’s global reach, membership, and financial performance while overseeing major international congresses and launching impactful global initiatives.
Prior to this, he held leadership roles with organisations such as Smith Bucklin, MCI Group, Interel Association Management, and several international medical societies.
