Heroku is a based in San Francisco, and launched in 2007. The company received Y Combinator seed funding in 2008 as well as $13 million in venture and angel funding between 2008 and 2010. In December 2010 Salesforce.com acquired Heroku for $212 million, but it continues to operate independently. Salesforce.com has over 8000 employees and reported revenue of $2.266 billion in 2012. Yukihiro "Matz" Matsumoto, creator of the Ruby Programming language, joined Heroku as Chief Architect in 2011. Initially Heroku was a platform-as-a-service (PaaS) for the popular web application framework Ruby-on-Rails. This was in the early years of the framework when deployment and management of Rails applications was complex and cumbersome. Heruku greatly simplified this by leveraging popular versioning control software Git to facilitate single command deployment and handling all of the associated management complexities. In this way, Heroku set the standard for the many platform services that would follow it. Over time, Heroku came to support other software stacks and add-ons like database and email. Herokuâ€™s underlying infrastructure is AWS EC2, specifically in the us-east-1 region only. Key differentiators include an established track record and significant market share in the PaaS sector; strong support for the Ruby-on-Rails framework; a large selection of software add-ons; and support for many programming languages, frameworks and databases including Ruby, Rails, Node.js. Scala, Clojure, Python, PHP, PostgreSQL, MySQL, MongoDB and Redis.