Sidik Suraputra is a senior lawyer, having been with the firm since its founding in 1971. He is a Professor of Law in the Faculty of Law of the University of Indonesia, specializing in public international law.

He has served on various boards, such as a member of the Expert Legal Advisors to the Minister of Justice and Human Rights for International Law Problems, a member of the Standing Committee of International Law, Indonesian Committee of the ASEAN Lawyers Association, a member of the Advisory Board of the International and Comparative Law Center, the Southwestern Legal Foundation, Dallas, Texas, USA, a member of the Honorary Board (“Ketua Dewan Kehormatan”) of the Association of the Indonesian Capital Market Legal Consultants and an Arbitrator of the Indonesian Capital Market Arbitration Board (Badan Arbitrase Pasar Modal Indonesia).

He obtained his law degree from the Faculty of Law and Social Sciences of University of Indonesia in 1961 and his doctoral degree in Law from the same university in 1988. He studied at the Faculty of Law of the University of Leiden, Netherlands, and obtained a diploma in International Relations from the Institute of Social Studies at the Hague, Netherlands, in 1967.