Bitcoin exchanges in Europe's early crypto years were characterised by technical fragility, regulatory opacity, and the constant possibility that the platform you were using would simply disappear. Paymium was founded in Paris in 2011 as one of Europe's first Bitcoin exchanges and has the unusual distinction of still operating today — a survival record that sets it apart from the majority of its early-era peers. Its longevity reflects a deliberate choice to operate as a regulated financial institution from the beginning, obtaining French regulatory authorisation and maintaining compliance standards that many early crypto platforms treated as optional. Paymium serves both retail and institutional users in the French market, offering Bitcoin trading with the regulatory framework and consumer protection standards of a licensed payment institution. In the contemporary European crypto landscape — dominated by Coinbase, Binance, and Kraken — Paymium is a niche player by volume but a significant one by longevity and regulatory credibility. For French institutional investors and the segment of retail users who prioritise regulatory protection over trading fees, Paymium's fifteen-year track record of compliant operation is a genuine differentiator in an industry where that record is extraordinarily rare.