The electrical & electronics industry is one of Thailand's largest manufacturing sectors. As the world leader in HDD production and a leading manufacturer in the integrated circuits and semiconductors industries, Thailand provides one of the largest assembly bases in Southeast Asia. Thailand has successfully developed world-scale production capacities within a dynamic and concentrated cluster that continues to increase over the years. It is now home to the world's top E&E companies, including Sony, Hitachi, Samsung, Fujitsu, Seagate, Phillips Electronics, Electrolux, Honeywell Electronic Materials, Emerson Electric, and LG Electronics.

Examples of successful foreign companies in Thailand: