The seeds of Key Proteo were planted in 2019 when Dr. Sihoun Hahn co-founded the company, bringing over 30 years of experience from his passion and focus on identifying debilitating diseases in early childhood to help minimize the burden and impact these disorders can have on an individual throughout their life.

With an accomplished track record as a physician, laboratorian, academic researcher, professor and advisor through various leadership and advisory positions held at world-renowned institutions including the University of Washington, Seattle Children’s Hospital, Washington State Department of Health’s Newborn Screening program, and the Wilson Disease Association, Dr. Hahn’s mission-driven approach and commitment to rigorous science has drawn together a high-caliber group of clinicians, researchers, public health officials, investors, colleagues, scientific advisors and Board members, and the Key Proteo team remains dedicated in its commitment to advancing newborn screening.