17 public quantum companies and 35 major private companies across 14 countries. Public rows link to live market data or listing profiles; private rows link to full profiles with funding history and IPO status.
These 17 tracked public quantum companies trade on U.S. and international exchanges. For live valuation order, see the quantum stocks ranked by market cap.
Country = headquarters location; several companies list on exchanges outside their home country (e.g. Arqit is UK-based but NASDAQ-listed). Private-company data is static and refreshed manually — see each profile's "last updated" date. Not investment advice.