Ok, now it's in Rumours&News. Grupo Constantino de Oliveira own Breda, Viacao Jaragua and many other bus lines both municipal and long distance.
However, the most curious thing I discovered during the search on Altavista was a treatise on Santos Dumont. What's the connection with a bus company, you ask? Well just look it up for yourselves! And see who signs it.
http://turma-aguia.com/fab/dumont.htm
Coincidence? Hmmm..