NTT carries out basic research and development activities at three laboratory groups in a wide range of fields, including some of the most advanced ICT research in the world.

The title of "NTT Fellow" is reserved for those individuals whose research results and performance have brought them distinction and are extremely highly regarded both within and outside NTT.

"Distinguished Researcher" is a title given to innovative researchers who have been recognized as outstanding both within and outside NTT. "Senior Distinguished Researcher" is a title given to highly outstanding "distinguished researchers." They are responsible for leading innovative research or cutting-edge technical development in research areas considered to be important for the NTT Group in the long term.