Evidium

Evidium is a San Francisco healthcare-AI company building what it calls 'Referenced AI' - a neurosymbolic platform that turns medical evidence into computable knowledge. Rather than a black box, it projects patients across a computable map of clinical states and the transitions between them, so every insight traces back to guidelines, charts, and research. Founded and led by Carl Bate, the company sells transparent clinician-quality insights and probabilistic risk forecasts to health systems, insurers, and payviders, and closed a $22M Series A co-led by Health2047 (the AMA's venture studio) and WGG Partners in November 2025.