JJ Sendelbach serves as the Managing Director of Doublejay Consulting LLC, a firm providing evidence-based consulting to the consulting and technology industries since June 2003. Sendelbach holds a position on the US Advisory Council and serves as a member of the Supervisory Board at Kayrros, a global platform focusing on asset observation analytics and transparency in methane emissions. Additional board roles include a long-standing membership on the Board of Directors for DB (Deutsche Bank) Alumni Inc. and the Mill River Park Collaborative, as well as advisory positions with several technology and analytics companies, enhancing their market strategies and transparency. Academic credentials include a degree in Economics from The Julius Maximilians University of Würzburg.