Previously, the Brazilian military use Joomla as the standard platform and has over 300 websites for internal communication. It is above all the security that has made them chosen Joomla over other open source platforms.
While other parts of the public sector are using Joomla. The Ministry of Education has a lot of pages built in Joomla, and Plone. It has recently launched a project to migrate all pages in Plone to Joomla to thus be able to use a single platform for all agencies in education.
Even business using Joomla, where one of the country's largest banks (Banco de Brasil) have begun to use Joomla for their intranet and multiple pages within the organization. Banco de Brazil has over 112 000 employees in Brazil and South America.
Learn more about Joomla rampage in Brazil here