| Year | Detail |
| 1988 |
NTT DATA Communications Systems Corporation became a separate company from NTT and became one of Japan's most significant information and communication service companies. |
| 1990 |
The company established its first foreign branch in the U.S. to support the company's global activities from overseas. |
| 1991 |
The company established a branch office in the U.K. to support systems developed for Japanese financial institutions. |
| 1998 |
The company changed its name from NTT DATA Communications Systems Corporation to NTT DATA Corporation. |
| 1998 |
The company established NTT DATA (China) Co., Ltd. to provide customer system integration services, mainly in Beijing. |
| 2001 |
NTT DATA Group started a joint operation web ordering system for home appliances with SHARP, SONY Marketing, TOSHIBA, JVC, and HITACHI. The system was easy to install and allowed orders from several manufacturers. |
| 2001 |
The company collaborated with Mitsubishi Electric and developed an authentication system combining a Smart card and fingerprint authentication technology. |
| 2003 |
The company established the "3D Consortium" in collaboration with Itochu Corporation, SANYO Electric, SHARP, and SONY to expand the development of 3D by popularizing 3D devices and content. |
| 2005 |
NTT DATA Group acquired The Revere Group, Ltd, which provided total system integration solutions to customers in the U.S. and helped obtain new clients. |
| 2005 |
The company joint ventured with Yonyou Network Technology to provide IT support for Japanese companies expanding into China. |
| 2007 |
The company partnered with DATATRAK Corp. in the U.S. to perform a clinical trial for the Electronic Data Capture service "eClinical." This service aimed to speed up the development of new drugs by simplifying data entry, form creation tools, and data extraction, all through a user-friendly interface. |
| 2008 |
The company acquired Intelligence AG, which focused on creating tailor-made SAP software to fulfill customer needs. |
| 2008 |
NTT DATA Corp collaborated with BMW AG to acquire the management rights of the IT system Company Cirquent GmbH, bringing the vast experience of the IT service provider. |
| 2010 |
The company developed the National Spatial Data Infrastructure for the Indonesian government. This system combined fragmented data to enable a more efficient formulation of regional development plans. |
| 2011 |
The company established a business center in Ishinomaki-city to create stable employment in areas affected by the Great East Japan Earthquake and to provide reconstruction support. |
| 2011 |
The company acquired Value Team S.p.A., Italy, to expand know-how in IT consulting and system development in the Telecom, manufacturing, and financial fields, further expanding into Brazil and Turkey. |
| 2011 |
Keane International, Inc., an American IT service company, was acquired by NTT DATA Corp., bringing in their expertise in IT service and important clients such as government and financial institutions. |
| 2014 |
Everis Group, a Spanish company, was acquired by NTT DATA Group to strengthen NTT DATA's IT services in the Spanish-speaking world. |
| 2015 |
NTT DATA acquired Carlisle & Gallagher Consulting Group to expand consulting services to the global financial services industry. |
| 2016 |
The company acquired Dell Inc.'s information technology consulting division for over $3 billion to further expand its presence in North America. |
| 2017 |
The company established the BeSTA FinTech Lab to develop new financial services by transmitting information, developing new business ideas, and promoting projects. |
| 2017 |
The company partnered with Mitsubishi Heavy Industries to form NTT DATA MHI Systems, focusing on information systems to improve the efficiency of IT infrastructure construction, operation, and maintenance. |
| 2019 |
NTT DATA established its Artificial Intelligence Center of Excellence (AI CoE) on May 21, 2019, to develop further expertise in artificial intelligence (AI) and train engineers worldwide in the field. |
| 2021 |
The company launched NTT DATA EMEAL, a new operational company for Europe, the Middle East, Africa, and Latin America. |
| 2022 |
NTT DATA and SAP collaborated to track fragile and sensitive cargo shipments and facilitate insurance procedures. |
| 2023 |
The company changed its name to NTT DATA Group Corp., a holding company, and NTT DATA Japan Corp., an operating company in Japan. |
| 2023 |
Aurora Labs, an automotive artificial intelligence (AI) company, collaborated with NTT DATA Group Corp. to provide software over-the-air updates supported by AI and 5G connectivity. |
| 2023 |
NTT DATA collaborated with the Vatican Library to expand online communities based on Web3/NFT tech. |
| 2023 |
NTT DATA collaborated with NVIDIA and FANUC Germany to create a digital twin of robotic arms for industrial digitalization use cases. |
| 2023 |
NTT Global Data Centers Japan, a subsidiary of NTT DATA Group Corporation, and TEPCO Power Grid, Inc. agreed to establish a new company to develop and operate data centers in the Inzai-Shiroi area of Greater Tokyo, Japan. |
| 2024 |
The company collaborated with CYFIRMA, a provider of an external threat landscape management platform, to enhance the threat management capabilities of its global cybersecurity services portfolio. |
| 2024 |
The company partnered with Promethium, an AI-native data fabric technology company, to accelerate data fabric adoption in North America. |
| 2024 |
NTT DATA partnered with the Green Software Foundation to develop a new international standard called Software Carbon Intensity. |
| 2024 |
MUFG Bank, Ltd. and NTT DATA Group Corp. collaborated with Innovative Optical and Wireless Network (IOWN) on a paper on services infrastructure for a financial industry use case. |