Opsy Holding AB (publ), a tech company, develops solutions at the intersection of medicine and insurance. It offers OpsyOne platform that develops and automates claims settlement processes. The company's platform provides case management, medical opinions, quality assurance, regulatory compliance, administration and follow-up services. It serves insurance companies and medical advisors. The company was formerly known as WntResearch AB and changed its name to Opsy Holding AB in April 2025. Opsy Holding AB was incorporated in 2007 and is based in Stockholm, Sweden.