TYPO3 is #17 in Top 10 Enterprise Portals
TYPO3 is a free Open Source content management system for enterprise purposes on the web and in intranets. It offers full flexibility and extendability while featuring an accomplished set of ready-made interfaces, functions and modules.
Positions in ratings
#17 in Top 10 Enterprise Portals
#10 in Top 12 Website CMS systems
The best alternatives to TYPO3 are: Drupal, Sitecore