Research Manager for Quantitative Services of The 451 Group, Greg Zwakman, has published a report on the Cloud Computing Platform as a Service (PaaS) market that projects a 84% growth rate from 2009 to 2013. The PaaS market is expected to produce revenues of $988m in 2013.

Reports such as this one are available to subscribers of The 451 Market Monitor: Cloud Computing service and are also for sale to non-subscribers.

The PaaS market is much touted but current revenue levels are modest with a handful of players dominating the current landscape. However, the market is still in an embryonic state and as the sector evolves and customers gain exposure to different models, the PaaS marketplace, and the vendor leader board will certainly shift.

The most commercially successful PaaS offerings to date have been based on a central application providing a critical mass of users; to which other smaller applications attach themselves. However, stand-alone vendors looking to differentiate themselves through superior service levels have emerged to challenge their larger rivals.

Vendors in this analysis include Salesforce.com, Intuit, Google, Engine Yard and Long Jump.