TNB ILSAS, established in 1978 and a subsidiary of Tenaga Nasional Berhad (TNB), stands as Malaysia's premier corporate academy specializing in human capital development within the energy sector. With over 40 years of experience, ILSAS is dedicated to elevating skills through comprehensive technical and soft skills training, consultancy services, and innovative educational solutions. The academy offers a diverse range of programs, including Engineering, Renewable Energy, Business Operation Training, and Leadership Management, ensuring alignment with national regulations and industry standards.

Accredited by respected bodies such as City & Guilds UK and the Institute Leadership & Management, ILSAS provides certification programs in Electrical Competency, Energy Management, and specialized courses like Drone Pilot Certification.

In addition to its training offerings, ILSAS provides expert consultancy focusing on organizational development, change management, and business intelligence. With branches in Malim Nawar and Kulai, ILSAS also hosts facilities for accommodation and event hosting, making it a key player in fostering sustainable learning and development within Malaysia's energy landscape.