Microsoft ends support for Internet Explorer on June 16, 2022.
We recommend using one of the browsers listed below.

  • Microsoft Edge(Latest version) 
  • Mozilla Firefox(Latest version) 
  • Google Chrome(Latest version) 
  • Apple Safari(Latest version) 

Please contact your browser provider for download and installation instructions.

NTT Group's website

Open search panel Close search panel Open menu Close menu

CEO Message

By applying the NTT Group's technology and know-how, we will cooperate with our partners to solve social issues and deliver new experiences and excitement to our customers.

Medium-Term Management Strategy

Your Value Partner 2025

To resolve social issues through its business operations, NTT Group works together with its partners as "Your Value Partner."

About NTT

NTT Group is a leading company in the telecommunications business. We operate in a wide range of domestic and overseas markets by utilizing the customer base and expertise in communication networks and ICT that we have cultivated over our history

At a glance

  • Consolidated subsidiaries


  • Number of Employees


  • Consolidated Operating Revenues

    ¥12,156.4 billion


NTT conducts research and development on new technologies and tackles challenges related to safety, disaster prevention, and sustainable development along with NTT Group companies and many people from different industries, thereby aiming to solve social issues.

NTT R&D Website

NTT R&D for creating a Smart World where technology becomes so pervasive part of society that people are unaware of its presence.

Here can find diverse research results and various articles including interviews with researchers.

NTT conducts a broad range of research and development, from cutting edge basic research to new value creation in collaboration with our operating companies and partners.

Disaster Countermeasures

Information on NTT Group initiatives to build disaster-resistant communications networks, facilities and equipment


An introduction to NTT Group's Sustainability.

NTT Group Environmental Protection Activities

An introduction to NTT Group's Environmental Protection Activities.


The corporate profile of NTT (Nippon Telegraph and Telephone Corporation), the holding company of NTT Group.

Careers Information

Recruiting information of NTT Group and NTT R&D.

Evaluation by Society

    • EP100 EV100

      NTT is the first telecommunications operator to become a member of global initiatives to make smarter use of energy, “EP100” and “EV100” (Oct. 2018)

    • CSDE

      Established a council to promote secure digital economy together with multi-national companies

    • FTSE4Good
    • FTSE Blossom Japan