We produce vertically aligned on-prem private cloud appliance. We design the hardware (motherboard, BMC, etc) and write the software (obviously integrating open source components where it makes sense eg. KVM, but also writing our own). Everything comes from a single vendor - us. The result is a cloud-like experience with no finger pointing and no shoe-horning as it was all built to work together.

Thanks for the feedback! I'll make a note to have a better less marketing-y blurb for next time.