Ismail Royer is Research and Program associate at the Religious Freedom Institute (RFI), a non-profit organization based in Washington, DC. He converted to Islam in 1992 and studied political science at American University. He has studied religious sciences with scholars such as Dr. Jaafar Sheikh Idris and Sheikh Muhammad Nur Abdullah,as well as with a student of Sheikh Abdul Qadr al-Arnaout.
From 1993 to 2003, Royer worked in several non-profit Islamic organizations.
In June 2003, Royer was indicted on terrorism-related offenses for assisting the Pakistan-based Lashkar-e-Taiba (LET) and ultimately pleaded guilty to weapons charges related to the violation of United States neutrality laws. Since his release from prison in December 2016, he has worked with nonprofits to promote peace between faiths and undermine religious extremism. His writing has appeared in publications such as the Washington Post, Journal of Religion and Society, Public Discourse, Detroit Free Press, Al Jumuah, and Muslim Matters.