NTT Comware Corporation (エヌ・ティ・ティ・コムウェア株式会社 in Japanese) is a system integration company which serves mainly the NTT Group. It started as the old NTT's IT Services department and was incorporated as a wholly owned subsidiary of NTT in 1997.

NTT Comware Corporation is a system integration company which serves mainly the NTT Group. It started as the software center of the old NTT's IT Services department in 1985 and was incorporated as a wholly owned subsidiary of NTT in 1997.

Among the NTT Group companies, NTT Comware focuses on the IT services to the Group companies, while NTT Data mainly serves non-NTT Group companies, although NTT Comware has recently started to solicit work outside of the Group.

• NTT Comware Hokkaido
• NTT Comware Eastern Japan
• NTT Comware Tokai
• NTT Comware Western Japan
• NTT Comware Kyushu
• NTT Comware Billing Solution
• NTT Internet

NTT and its Group companies:

• NTT Communications (NTT America, NTT Europe, etc.)
• NTT Comware
• NTT Data
• NTT DoCoMo

• The Japanese Wikipedia page

• NTT Comware home page