MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
DigitalOcean - Simplifying cloud hosting. Deploy an SSD cloud server in 55 seconds.
Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
Amazon EC2 - Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services. Free to join, pay only for what you use.
Minio - Minio is an open-source minimal cloud storage server.
MacStadium - MacStadium offer Mac colocation and dedicated server rentals plus VMware Mac Pro private cloud environments for large-scale iOS app