In 2013, Atty. Mamangun was the recipient of the Certificate of Selection in the area of Family Law from Legal’s Finest -- a premier guide to the world’s leading attorneys based in the United Kingdom.
In 2020, Atty. Mamangun was the awarded the Certificate of Excellence from Advisory Excellence, a London-based organization which profiles the best legal advisers around the globe, for his outstanding performance in the area of Family Law.
THE LAWYER NETWORK
In 2018, Atty. Mamangun became a member of The Lawyer Network and was positioned as the exclusive lawyer for Family Law in the Philippines,
ASSOCIATION OF EUROPEAN LAWYERS
In 2021, Atty. Mamangun became one of the select few to be invited to the prestigious Asociacion Europea de Abogados, the largest network of lawyers in the world based in Alicante, Spain.