Working for big corporations has put more than one provider out of business.
Pick the name of any hosting service and you'll find both praise & condemnation.
More than one web host has gone belly up in short order. That's why I make sure I can change a host on short notice. More than one business has discovered that their web site was down and the hosting company's phone had been disconnected.
Sigh.
Anything you can't pick up from digikey, or the nearest street corner.
I have a question for you about your specialty. Are high power X-ray tubes a controlled item? Some idiot is trying to sell six, '60s vintage water cooled GE X-ray assemblies for $10,000 on Craiglist. I know where he got them, and that he's trying to make over 1900% profit.