Irvine Systems is a technology-oriented company that provides information technology services with a focus on IT consulting, web application development and operations.

We emphasize forming a small, elite, agile, and flexible team to make critical decisions quickly and to establish good communication. We also believe that our clients benefit from the accumulation of technology, which is why most of our projects are carried out by teams composed entirely of in-house members.

We have been involved in many projects in the entertainment and enterprise fields. Many of our clients are satisfied with and place a great deal of trust in our technical capabilities, our practical project promotion methods, and our multilingual communication skills for international projects.

In recent years, our software development and system operation and maintenance businesses, which we have been focusing on since our establishment, have been rotating in a well-balanced manner as the two wheels of a cart and continue to create a good cycle for each other.
In particular, as an AWS Select Consulting Partner and AWS Public Sector Partner, we have received many inquiries and have been entrusted with many projects in the design, construction, migration, operation, and maintenance of cloud environments, which require extensive and deep technical knowledge and experience.

We also focus on human resource development. We have established our own curriculum that enables our employees to acquire practical skills and knowledge in a short period of time in a broad and systematic manner, and all of our engineers are working hard to become full-stack engineers.

All of our employees are eager to support the development of your services and business in the field of IT for many years to come.



Irvine Systems, Inc.
President and CEO Masahiro Nakajima

Brief Personal History
Masahiro Nakajima oversees internal systems and development environment management at SQUARE ENIX HOLDINGS CO., LTD. As the head of the US subsidiary, he will be responsible for PC software development, localization into European languages, and the launch of the European office.
After leaving the company, he provided technical support for online entertainment ticketing and online edutainment service business in collaboration with Disney, based in Japan and the US.
He started his own company, Irvine Systems, Inc, and continues to work with the company to this day.



Irvine Systems


〒141-0022
1-10-10 Higashi Gotanda, Shinagawa-ku, Tokyo
Office T&U B1F


TEL 03-5475-5001