A few years back, I was working at that company which had a whole /8...
... and a few /24 on the side (when they got them, they were actually called Class A and C).
And they were using a good dozen IP addresses out of them! Okay, maybe a couple of dozens, let's be generous.
And it got funnier: internally, they were using a different range of public addresses, not allocated to them but to another continent. Their reason: they starting using that range before RFC1918 was published, and the effort needed to change was too big.
IPv6? They'd heard of it, but rather than not planning for it, they were more like actively resisting the newfangled protocol.
Aerospace company. Not a very well known name, anyhow, let's leave it at that.