The biggest factor here is location, you can have unlimited choice if you’re in or near a major market (New York, Chicago, LA, etc), which you didn’t mention. I

The biggest factor here is location, you can have unlimited choice if you’re in or near a major market (New York, Chicago, LA, etc), which you didn’t mention. If you’re in smaller markets, often times the larger providers still have some sort of presence but prices will be out of control. I would probably find a local managed service provider and see if they have any rack-level offerings, before going with the behemoths like Equinix or Digital Realty because they will bleed you dry if you’re not careful. I have used Deft, Cyxtera and a handful of smaller providers in the past (and of course Eqx and DLR), but those met a particular project’s needs well and may or may not fit yours. Where would you prefer to have this set up? What are your growth plans, if any? Will you be looking to grow into other PoPs as your product gains traction? Do you need access to a more diverse mix of transit providers? Are you bringing your own addresses? Are you looking for concierge-/fully-managed level service or are you going to manage all the aspects of the hardware yourself? Lots of questions to get to the bottom to before an ideal provider could be found.