Jonathan Simon is a co-founder of the Election Defense Alliance, a national coordinating body for citizen electoral integrity groups and individuals.

He is also a member of Alliance for Democracy and We Do Not Concede, and has worked closely with several key election integrity organizations, including the National Ballot Integrity Project and the National Election Data Archive. He has authored or coauthored several papers addressing statistical anomalies and other evidence of computerized election fraud, and has collaborated with Bruce O’Dell in the development of an effective handcount sampling protocol to be deployed as a check mechanism where computerized vote tabulation is used.