Throughout its existence, the Telders Competition has enjoyed the support of several prominent members of the ICJ and the international legal world. The late Judge C-A. Fleischhauer, Judge Stephen M. Schwebel (ICJ) and Judge Gilbert Guillaume (former President, ICJ) have been Chairman of the Supervisory Board of the Competition. The present Chairman is Judge Giorgio Gaja (ICJ).

The Telders International Law Moot Court is incoporated as a foundation, and has various prominent academics and professionals who chair the Supervisory Board:

H.E. Judge Giorgio Gaja, Chairman, International Court of Justice
H.E. Judge Abdulqawi Ahmed Yusuf, International Court of Justice
H.E. Judge Joan Donoghue, International Court of Justice
Prof. dr. John Dugard, Leiden University
Prof. dr. Nico Schrijver, Leiden University
Prof. dr. Liesbeth Lijnzaad, Dutch Ministry of Foreign Affairs, Maastricht University
Prof. dr. Niels Blokker, Leiden University
Ms. Hanna Thuránszky, Former Director Telders Organizing Office
Ms. Mette Léons, Telders Organizing Office