Zack Siddeek, MSW (He/Him)

Disability Systems Navigation Coordinator
The Arc of King County


Zack Siddeek is an Autistic social worker and community organizer practicing in Seattle, Washington. He is passionate about increasing the representation of Autistic people in all matters and places that impact them and infusing disability justice principles wherever possible. He works as the Disability Systems Navigation Coordinator at the Arc of King County. He also organizes the Square Pegs, a series of 25 social and support groups for Autistic adults in Washington State. Additionally, Zack serves on the board of the Washington Initiative for Supportive Employment, a nationally renowned organization that promotes equitable employment for people with developmental disabilities through innovation, training, and technical assistance.