We have one word for Typo3- extremely powerful CMS! The CMS has a community of 40,000 users that have, till now, produced around 1500 extensions to custom build enterprise solutions.

Technology it’s based on: PHP

Pros: Out of the box, Typo3 can build large dynamic websites, Large online community, very strong administration structure, lots and lots of extensions, ability to create multilingual websites, due to its flexibility in customization Typo3 is great for SEO purposes

Cons: It has its own template language, documentation not well managed, it’s complex and hard to understand (your first projects on Typo3 will not be easy), some documentation/forums might not be in English.

Cost-wise: Free

Top extensions for enterprises: templaVoila, spamsecurity, rg_smoothgallery, pagemanager, wec_knowledgebase, seo basics