FathomDB impressed me with its database as a service offering. Great for startups. You can stage your investments and limit the need for database staff.
Expect larger, established companies to become interested in this kind of product. You see, there's a trend developing.
With each passing year the real outsourcing will be to companies like FathomDB, companies that are reducing the complexity of software and making it easier to focus on development and modeling.
It's true. Take a look at another of the six: Cloudscale.