However, Amazon is a US company. So while it may be bigger, it's not in Europe "per se". OTOH, OVH is a European company since it was found inside EU borders.
So, OVH may be the biggest cloud provider in Europe, since it's a European company.
I have no experience working with them. I just wanted to clarify how OVH is considered European and AWS is not since I work in EU projects and I'm familiar with the perspective and thinking.
You would argue wrong. OVH (now renamed OVHcloud) is clearly and openly shifting from a webhosting company to a cloud company, and it has been for a few years now. Their name says it. Their landing page says it (the 4 maine categories have "cloud" in their name. All the official PR describe it as a cloud company.
I think SAP, Dassault and like give these services to test their capabilities and beta test their services in a somewhat lower risk environment. They also charge for it, so it's a win-win for them.
A slightly more advanced version of old MyRealBox, which was Novell's e-mail server public beta test. It was free and was working with 99.99% uptime from my experience.
So, OVH may be the biggest cloud provider in Europe, since it's a European company.