Alexandre Vital Leão

Quadrado Mágico Desenvolvimento e Licenciamento de Software SA engages in the development of technology solutions for education institutions. It offers an application and platform to assist teaching and learning in schools. The company was founded by Thiago Freire Feijão Moreira and Gabriel Queiroz de Brito Melo in 2011 and is headquartered in Sao Jose dos Campos, Brazil.

Prepona Sistemas de Testagem e Avaliação SA develops and delivers computer-based tests. It offers platform for medium- and large-scale testing and assessment programs. The company was founded in 2000 and is headquartered in Rio de Janeiro, Brazil.

Quadrado Mágico Desenvolvimento e Licenciamento de Software SA engages in the development of technology solutions for education institutions. It offers an application and platform to assist teaching and learning in schools. The company was founded by Thiago Freire Feijão Moreira and Gabriel Queiroz de Brito Melo in 2011 and is headquartered in Sao Jose dos Campos, Brazil.

Prepona Sistemas de Testagem e Avaliação SA develops and delivers computer-based tests. It offers platform for medium- and large-scale testing and assessment programs. The company was founded in 2000 and is headquartered in Rio de Janeiro, Brazil.

Prepona Sistemas de Testagem e Avaliação SA develops and delivers computer-based tests. It offers platform for medium- and large-scale testing and assessment programs. The company was founded in 2000 and is headquartered in Rio de Janeiro, Brazil.