Pollution tracking and monitoring and rehabilitation: Japan public contracts since 2024

Updated 12 October 2026 · all lines

Pollution tracking and monitoring and rehabilitation: Japan public contracts since 2024. Since January 2024 the line carries 926 award notices from 24 buyers. 293 suppliers share it. 338 in 2024. 312 in 2025. 276 in the first 9 months of 2026. 23 of them had no award notice in the register from April 2014 to 2023.

Assay record ASY-JP-0DSKLEI1HB · Cite as: Assay Systems, “Pollution tracking and monitoring and rehabilitation: Japan public contracts since 2024”, https://assay-systems.com/register/jp/line/pollution-tracking-and-monitoring-and-rehabilitation/

The line

Since January 2024 the line carries 926 award notices from 24 buyers. 293 suppliers share it.

338 in 2024. 312 in 2025. 276 in the first 9 months of 2026.

23 of them had no award notice in the register from April 2014 to 2023.

Suppliers in the line, by award notices since 2024

The extract for this line

Names every buyer behind the figures and, for each award notice, the supplier, the award date, the notice number and the value where one is disclosed, and the notices behind every figure.

Largest suppliers in the line

Share of the line held by each of its largest suppliers, by number of award notices, in the Procurement Portal register for Japan.

Idea Co., Ltd., Tokyo, Corporate Number…4.4%Rion Co., Ltd., Tokyo3.9%Nippon Enuyuesu Co., Ltd.3.2%Tohoku Ryokka Kankyohozen Co., Ltd.2.3%Kankyo Keisoku Co., Ltd.1.6%Chiyoda Tekunoru Co., Ltd.1.5%Toko Keisoku Co., Ltd.1.5%Iwasaki Co., Ltd.1.3%Boei Gijutsu Kyokai1.2%Hoshasen Keisoku Kyokai1.2%

All suppliers in Japan, A to Z

Source: successful bid records (open data) for Japan in the Procurement Portal of the Government of Japan, Digital Agency, p-portal.go.jp, which permits reuse including commercial use under its terms of use; awards from April 2014 to 30 September 2026, accessed 12 October 2026.Assay Systems has changed the data.