In the “Construction Planning, Construction Equipment, and Cost Estimation” category, T-NET keeps the No. 1 place (*) in sales for 19 consecutive years.

From assessment to construction, and maintenance and management of public works, we support its clients as a technical partner. We also provide construction companies with technical support, such as by dispatching engineers and creating electronic deliveries.

We also actively undertake maintenance and management of infrastructures, which is becoming increasingly important.

In partnership with government agencies, local governments, major construction companies, and construction consulting firms, we have been involved as the contractee in numerous large-scale projects, such as major national projects by the Ministry of Land, Infrastructure, Transport and Tourism and the Ministry of Agriculture, Forestry and Fisheries, railway and transport systems, and public projects by local governments.

*: According to the “Construction Consultant Performance Rankings 2021” published in the April 26, 2021 edition of Nikkei Construction


Since establishment, T-NET JAPAN has provided both public and private entities with technical services at each step of civil engineering construction, from assessment, planning, surveying, and construction to maintenance and management, as a construction consultant specializing in civil engineering service and technical assistance for private enterprises. Through this, we have extended our fullest support to our customers involved in civil engineering works.

Thanks to the support of our customers, T-NET JAPAN continues to hold first place in sales in Japan for the 19th consecutive year in the “Construction Planning, Construction Equipment, and Cost Estimation” category of construction consultant registration. T-NET JAPAN has gratefully earned the trust of those in various areas, from government offices and local governments to major construction companies and construction consultants.

In particular, T-NET JAPAN has been granted a top ranked share on a national scale in civil engineering service operations for the Ministry of Land, Infrastructure, Transport and Tourism, and is playing a major role in the promotion of public works. T-NET JAPAN will strive to provide even more advanced technical assistance, and will continue to contribute to the maintenance of safe and comfortable social infrastructure.

Major Activities

[Civil engineering service operations]

·Construction supervision assistance operations

·Surveying technique operations

·Technical data preparation operations

·Public domain management support operations

[Engineer dispatching]

·Project planning document preparation

·Work site project management assistance

·Preparation of construction progress management data

Main Customers

Ministry of Land, Infrastructure, Transport and Tourism, Ministry of Agriculture, Forestry and Fisheries

Japan Railway Construction, Transport and Technology Agency, Nagoya Expressway Public Corporation, Tokyo Metropolis, Hyogo Prefecture and other local governments

Major construction companies and construction consulting firms