Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
XtraBuild Designer - XtraBuild offers software development tools for database and reporting applications. No coding!
Heroku - Agile deployment platform for Ruby, Node.js, Clojure, Java, Python, and Scala. Setup takes only minutes and deploys are instant through git. Leave tedious server maintenance to Heroku and focus on your code.
Sheep - Membership and events for SMEs and nonprofits
Salesforce Platform - Salesforce Platform is a comprehensive PaaS solution that paves the way for the developers to test, build, and mitigate the issues in the cloud application before the final deployment.
DbFace - DbFace is an online database application & report building tool.