Business

Carrier-Related Business

In the Carrier-Related Business, the Group is engaged in the construction and maintenance of telecommunications equipment nationwide for NTT Group and New Common Carriers (NCCs), which are telecom carriers that entered the market after the liberalization of the telecommunications industry in the 1980s.

IT Solutions Business

COMSYS provides total solutions services in the IT field, handling everything from networks, servers, and storage to maintenance and operation, and software development. In addition, we provide customers with IT solutions owned by the COMSYS Group companies under the IT-COMPASS brand, thereby contributing to solving issues faced by society and our corporate clients.

Social System-Related Business

Based on our engineering capabilities cultivated through the development of telecommunications infrastructure, we are working on the “three pillars” of infrastructure, electricity and telecommunications, and renewable energy to prevent and mitigate natural disasters, improve the DX, safety, and convenience of society, and achieve carbon neutrality.

The COMSYS Group, is engaged in business activities leveraging the brand power and advantages of each region, and working to expand its business. Specifically, the Group is working to enhance the structure of its Carrier-Related Business, and strengthening its collaborations in the IT Solutions and Social System-Related businesses.
The COMSYS Group will continue contributing to the resolution of various social issues by creating social infrastructure that supports affluent lifestyles.

Main business areas and business of major subsidiary groups

  • Nippon COMSYS Corporation
  • SANWA COMSYS Engineering Corporation
  • TOSYS Corporation
  • TSUKEN Corporation
  • NDS Co., Ltd.
  • SYSKEN Corporation
  • Hokuriku Denwa Kouji Co., Ltd.
  • COMSYS JOHO SYSTEM Corporation
COMSYS-Grp
Major subsidiary groups Main business area(s) Business
Carrier-Related Business IT Solutions Business Social System-Related Business
NTT Engineering Business NCC Engineering Business
Nationwide Large Small Large Large
Nationwide Medium
Shinetsu Medium Small Small Small
Hokkaido Medium Small Small Small
Tokai Medium Small Small Medium
Kyushu Medium Small Small Small
Hokuriku Small Small Small Small
Nationwide Small
*NCC = New Common Carrier
*The sizes of the business scale indicated by ● are approximately as follows. Large: ¥50 billion or more / Medium: ¥20.0 billion to less than ¥50.0 billion / Small: Less than ¥20.0 billion