Bilitis Resource Center Foundation was founded in 2004 by 7 women, most of whom had previous experience in the LGBT movement. The founders of Bilitis are:

Elvira Henry Dimitrova

Monika Nedelcheva Pisankaneva

Pavlina Tsvetanova Naydenova

Patricia Vasileva Tocheva

Penka Velichkova Marinova

Tsvetelina Naydenova Nikolova

Yana Vasileva Kuncheva