Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
Evercontact - Your contacts always up to date and automatically with Evercontact.
Dokku - Docker powered mini-Heroku in around 100 lines of Bash
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
Google Cloud Functions - A serverless platform for building event-based microservices.
Bigin by Zoho CRM - Pipeline-centric CRM built and priced for small businesses