With 195,000 employees, you’re looking at one of Japan’s biggest companies.
Basically NTT is a parent company of five: NTT East, NTT West, NTT Communications, NTT Data and NTT DOCOMO:
- NTT East and West are to cover Japan from a regional/geographical perspective.
- NTT Communications covers long-distance and international businesses.
- NTT Data’s core businesses are system integration and IT consulting.
- NTT Docomo has 55 million mobile subscribers in Japan.
The first three are NTT’s 100% subsidiaries.
NTT has a big number of other companies in its group, for example NTT America (they host Twitter), NTT Europe, NTT Finance etc.