On Tuesday, ActiveState announced a partnership with Microsoft Azure that renders the Stackato Platform as a Service available on Azure. Built on Cloud Foundry, Stackato PaaS supports Docker and integrates with a multitude of third party products such as New Relic, Splunk and various database platforms. Stackato’s enterprise-grade PaaS platform enhances the operational agility of developers by delivering a pre-configured, polyglot application development stack based on the open source Cloud Foundry platform. Stackato’s enterprise-grade security and professional services offerings allows customers to leverage the benefits of an open source platform derived from the contributions of developers all over the world, in conjunction with enterprise-grade user management and security functionality. Moreover, Stackato’s support for Docker renders it ideal for the development of distributed applications marked by enhanced portability both at the level of individual and multiple containers. ActiveState’s partnership with Microsoft Azure marks a coup for Stackato given that it is now available on one of the industry’s most popular IaaS platforms. Conversely, Stackato’s availability on Microsoft Azure represents yet another feather in Azure’s cap and a differentiator from Amazon Web Services, which offers only one PaaS on its IaaS platform in the form of Elastic Beanstalk. Azure already features Apprenda as another enterprise-grade PaaS on its platform in a clear sign that it intends to continue to differentiate itself from AWS by supporting a wider range of vendors and third party partnerships. With Apprenda and ActiveState Stackato available on its platform, Azure stands poised to brand itself as the IaaS with the richest set of partnership offerings, particularly in the PaaS space where IaaS and PaaS partnerships continue to proliferate as evinced by the forthcoming availability of both ActiveState Stackato and Apprenda on the Cisco Intercloud Marketplace. Meanwhile, Stackato’s Cloud Foundry-based polyglot PaaS functionality and support for Docker renders it a leader in enterprise PaaS that promises to broaden its reach further by means of its collaboration with Azure.