<p style="text-align:start;" size="0" _root="undefined" __ownerid="undefined" __hash="undefined" __altered="false">Checkout.com's Guillaume Pousaz is now one of Europe’s wealthiest tech entrepreneurs, with company documents and VC sources revealing that Pousaz’s stake in the payments startup puts him on <em>Forbes</em> 2021 list of the world’s billionaires with a $9 billion estimated net worth.</p>