In an interview with Red Ice TV, an internet outlet that promotes white identity politics, Emily Youcis, 26, said she was terminated by Aramark after being told her social media activities supporting white nationalist ideas do not reflect her employer's values.
She later posted on Twitter she had been let go a week ago.
"A core Aramark value is treating everyone with integrity and respect always. That includes respecting our associates' right to privacy and dealing with personnel matters confidentially. We can only confirm that the individual asked about is no longer employed after publicly connecting our company to views that contradict our values."
Last month, Youcis gained attention when she became involved in a fracas outside a conference of the National Policy Institute, where she had been interviewing protesters who accused the group of supporting anti-Semitism, white supremacy and fascism.
"We want to stand up for white America — we're the backbone of this country, the white working-class people," she said at the time.
Asked by PhillyClout if it was an act, she said: "People have asked me this repeatedly, and I keep telling them I'm being serious. I don't understand why they can't get it through their skull."