Commissioner Macario R. de Claro, Jr is a CPA lawyer and has worked in companies in the fields of manufacturing, mining, telecommunications, real estate and banking and finance prior to his appointment to the Philippine Competition Commission.

He started his career as a senior accountant in a mining company and later as a budget systems analyst at San Miguel Corporation. After passing the bar exams, he worked as a litigation and corporate lawyer in various companies before he was tapped by the Philippine National Bank as technical assistant to the President and CEO in 1995.

After his retirement from PNB in 2003, he resumed his legal and accounting profession as a consultant to real estate companies and various startup companies; and at one time served as a legal consultant to the Department of Environment and Natural Resources (“DENR”).

Commissioner De Claro, Jr. earned a Bachelor of Laws degree (magna cum laude) from the Ateneo De Davao Law School. Prior to that, he graduated magna cum laude from the De La Salle College with a Bachelor of Science in Commerce, Major in Accounting.