Yellow Frog are completely technology agnostic - which means that we don't believe that there is any one system which has all the answers. It is not until we have a full understanding of the client requirements, the roadmap for future development, the needs of the content entry team and the needs of all of the audience groups of the site that we are in a position to make a recommendation on which system is the best fit.
We are experienced in the delivery of projects using open source and commercial systems and have implemented a large number of client projects using the new wave of mature and refined open source systems and commercial systems. We are not closed minded when it comes to working with new content management systems, and have extensive experience of working with systems such as Alterian Immediacy, Tridion, Percussion, RedDot, SiteCore, EPI Server, Squiz CMS, Magento eCommerce along with a range of others. In the area of open source systems, we are presently favouring Wordpress, Concrete5 and Expression Engine as our core armoury of content management weapons.