WSA (Wonderful Sound for All), branded as WS Audiology, is a global hearing-technology company formed in 2019 through the merger of Sivantos and Widex. Headquartered in Lynge, Denmark, it develops and manufactures hearing aids and diagnostic solutions under brands including Widex, Signia, Rexton, Audio Service and Vibe, serving customers in more than 130 markets with roughly 12,500 employees worldwide.