Ravello has had a few different focus points since it was founded back in 2011. Originally it was all about cloud migrations, allowing applications, unicorn-like, to move from location to location, and thus enabling the fabled concept of cloudbursting. Since then, Ravello has changed focus a little, although, in fairness, its focus today bears much in common with the original vision.
Ravello is built upon HVX, a nested hypervisor that delivers self-contained capsules that run within existing virtual environments. If you think that sounds a little like what Docker is offering, you’d be correct in your assumption, but Ravello focuses on applications with traditional architectures as opposed to those based on microservices. Delivered as a service, Ravello runs on public clouds such as AWS and Google and is priced starting at $0.14 per hour.