The hosting industry is huge. There's a ton options, many of them better, larger and older than AWS. There are so many sites that don't use AWS. For example, I believe that, pre-Google, youtube used ServerBeach.
Some examples would be more interesting than a general "you're wrong".
It's hard to get actual numbers, but Equinix might be the largest. I believe their Singapore data center is actually what AWS, Digital Ocean and Azure use. (there's a lot more of these, such as Internap and Level 3 (which provided (and might still) services for Netflix and iTunes.))
AT&T is quite large. World of Warcraft used to be hosted on AT&T's infrastructure (might still be).
The above tend to be for large setups. Going smaller, you have the Rackspaces and Softlayers (now IBM). And, to a lesser extent, providers like OVH and Hetzner.
And, you can't forget the likes of Digital Ocean and Linode.
It's hard to come up with examples because more things are examples than aren't. AWS' market share is growing, but that's to be expected, in a lot of ways, despite EC2 being ~10 years old , it's still a new player.
AFAIC, what's more interesting about AWS is:
1 - How dominating it is over Microsoft and Google
2 - How popular the less invasive offerings are. A lot of people are sticking to their colocated, dedicated or VPSs, while using some part of AWS for DNS, backups or email. I hope they keep this up.
WhatsApp (Pre-Facebook) - Softlayer
Youtube (Pre-Google) - ServerBeach
Vevo - Rackspace
Zendesk - Rackspace
GoCardless - Softlayer
Snapchat - Softlayer