About MASTEL Institute
About MASTEL Institute
MASTEL Institute is an independent and non-profit organization in Jakarta and a subsidiary of MASTEL Indonesia, focusing on strategic policy-knowledge oriented studies on telematics (telecommunications, broadcasting, information technology) ecosystem and industry in Indonesia.

Mission and Philosophy


Crème de la crème Research & Studies

Publications & Public Literacy

Research & Funding
Who We Are

Mr. Sarwoto Atmosutarno
Chairperson of Steering Board
Sarwoto Atmosutarno is the Chairperson of MASTEL (The Indonesia ICT Society) for 2021-2024. He was elected in April 2021.
Sarwoto is the former CEO of PT Telekomunikasi Seluler (Telkomsel). He became the CEO of Indonesia’s largest mobile network operator from January 29th, 2009, to May 16th, 2012. Before being CEO of Telkomsel, he was the Executive General Manager (EGM) of Telkom’s Infrastructure division.
Sarwoto started his career in Telecommunications in 1977, after he graduated from high school. At that time, PT Telkom was still named the Perumtel. He attended Telecommunications Engineering Education which Perumtel held. He studied until 1979, and in 1980 he received an assignment decree as a Junior Technical Manager and was posted in Surabaya.
Sarwoto then continued his undergraduate education at the Faculty of Economics UNAIR Surabaya, and he graduated in 1985. In 1995, he completed his Masters in Business Engineering in Telecommunication at Ecole Nationale Superieure des Télécom Brittany (ENSTB) in France.

Mr. Mustapa Wangsaatmadja
Mustapa Wangsaatmadja is a seasoned professional in the telecommunications industry with a strong academic foundation. He earned his Bachelor’s degree in Telecommunication Engineering from the prestigious Institut Teknologi Bandung (ITB) in Indonesia in 1986, demonstrating an early focus on the technical aspects of communication systems. Building upon this technical expertise, he furthered his education by obtaining a Master of Network Engineering & Science degree from Atri Curtin University in Perth, Australia, in 1997. This international exposure and advanced degree equipped him with a comprehensive understanding of network technologies and engineering principles, setting the stage for a successful career in the telecommunications sector.
His extensive professional journey showcases a diverse range of leadership and strategic roles within prominent telecommunications companies. Currently, since 2023, Mustapa Wangsaatmadja serves as the Chief Executive Officer (CEO) of PT Mitra Insan Telematika (MITIKA), indicating his proven ability to lead and manage a telecommunications-focused organization. Prior to this, he held the position of Consultant/Advisor at PT Compnet from 2016 to 2019, leveraging his deep industry knowledge to provide strategic guidance. His leadership experience is further highlighted by his tenure as CEO of PT PINS from 2014 to 2016, where he was responsible for the overall direction and performance of the company.
Earlier in his career, Mustapa held significant positions within TELKOM, Indonesia’s largest telecommunications provider. From 2012 to 2014, he served as the Vice President of Innovation Strategy & Synergy, demonstrating his capacity to drive innovation and foster collaboration within a large organization. Before that, from 2007 to 2012, he held the crucial role of Senior General Manager (GM) of Research and Development (R&D) at TELKOM, underscoring his deep involvement in the technological advancements and future direction of the company. His career trajectory reflects a consistent progression into leadership roles with increasing responsibility, marked by a strong foundation in engineering and a strategic vision for the telecommunications landscape.

Mr. Udiyatno
Deputy Chief Executive
Udiyatno possesses a strong academic background in telecommunications, culminating in a Master’s Degree in Mobile Communication from the Institute National de Telecommunications in Paris, France (1993-1995). His pursuit of higher education built upon his foundational knowledge gained at Universitas Indonesia, where he completed his S1 in Electrical Engineering with a Telecommunications specialization (1989-1991) through a collaborative program with TELKOM. His initial technical training began with a D3 in Transmission from PUSDIKLAT TELKOM in Bandung, establishing a solid base in the practical aspects of telecommunications infrastructure. This comprehensive educational journey, spanning vocational training, undergraduate studies, and a specialized international Master’s degree, has equipped him with a deep and multifaceted understanding of the telecommunications field.
Udiyatno has dedicated his professional career to PT. Telekomunikasi Indonesia, Tbk (TELKOM), holding a diverse array of roles that showcase his technical expertise, leadership capabilities, and strategic thinking. His early experiences involved serving as an Operations and Planning Engineer for Transmission and Switching Networks across various TELKOM work locations, providing him with hands-on knowledge of network infrastructure and operations. His commitment to knowledge sharing is evident through his role as an Instructor for numerous Fixed & Mobile Network training programs within TELKOM. He further contributed to technological advancement as the Coordinator of the Transport Laboratory within the Research and Information Technology Division (RisTI TELKOM), playing a key role in research and development initiatives.
Beyond his technical and operational roles, Udiyatno has also demonstrated his aptitude for education, strategy, and business development. He served as a Lecturer at STT TELKOM, teaching Mobile Communications (in the Electrical Engineering Department) and Telecom New Technologies (in the Industrial Management Department), and also as a Lecturer for the TELKOM-ITB Professional Engineering Education Program (PAT). His project management skills were honed through his leadership of various TELKOM Projects and Research teams. Progressing into strategic roles, he held the position of Assistant Vice President for Interconnection Planning and Strategy within TELKOM’s Operations & Marketing Directorate and led the Technical Sub-Team for the TELKOM – World Bank Interconnection Management Consultancy Services Project. His business acumen is further highlighted by his roles as Project Director for the TV Cable Business Project at TELKOM, Business Development Director at TELKOM VISION, and ultimately as the President Director of TELKOM VISION, demonstrating his ability to lead and grow a significant business unit within the TELKOM group.

Mr. Tedi Tardiana
Deputy Chief Executive