Ted Lenhart worked as an LGBTQ activist in Las Vegas, Nevada during the 1990s, primarily focused on the HIV and AIDS epidemic. He worked with multiple organizations, including the Nevada chapters of Aid for AIDS, AIDS Coalition to Unleash Power (ACT-UP), and the Clark County Coalition of HIV/AIDS Service Providers. Additionally, Lenhart worked to develop social support groups for LGBTQ individuals, including the HIV-Negative Men’s Support Group and Nevada Outdoors, an LGBTQ hiking club.