Aside from games, European companies founded by tech entrepreneurs are extremely rare, and are only really appearing in the last decade.

Most of Europe's engineers work in large corporations that were created ages ago, and subsisted on government procurement of infrastructure, defence, or as subcontractors/staffing agencies to industry. And government spending in Europe has also been much tighter than USA.

Most "new" media/tech companies are founded as "spin-offs" from older media companies/publishers/telcos/banks. The engineering in Europe's early web efforts was considered as important as copy-machine technicians. This is changing, but the attitude is still deeply ingrained: people are either decision makers or "technicians".

Much longer history, higher fragmentation and the constant need to avoid wars after the fall of the Roman empire made humanities/politics/commerce prevail dramatically upon science/tech/innovation. Edit: you can see a living example of this at work again with the increasing feud between the EU and the UK after the Brexit (even before that but, you know, it was aptly defused from within).