Sixto Brillantes was the general counsel of the Nationalist People's Coalition (a conservative political party in the Philippines founded in 1992) from 2001 to 2006, then was a legal consultant of United Opposition from 2007 to 2009.
From 2001 to 2006, he was the general counsel of the Nationalist People's Coalition, a political party founded by Cojuangco. The Nationalist People's Coalition or NPC is a conservative political party in the Philippines, founded in 1992 by then-presidential candidate Eduardo Cojuangco Jr. He then was a legal consultant of United Opposition, a party founded by Jejomar Binay, from 2007 to 2009. 
