NumbersUSA is the grassroots arm of the network of anti-immigration groups founded by John Tanton, an activist with white nationalist leanings and a fondness for extreme "population control" measures.
Roy Beck, the executive director of NumbersUSA, founded the grassroots activism group in 1996 under the umbrella of Tanton's foundation, U.S. Inc. At the foundation, he also served as an editor of Tanton's "The Social Contract" magazine, which later became infamous for publishing the work of white nationalist writers, and helped edit a book by Tanton and Wayne Lutton, a white supremacist who would later become the editor of "The Social Contract." In 2002, Beck split his group from Tanton's and began the process of attempting to separate himself from his former employer's controversial views. Although Beck has attempted to distance himself from some of these more unsavory associations, NumbersUSA's restrictionist goals remain in line with the goals promoted by Tanton.