Japan · Procurement Portal award records · Supplier record

Koken Co., Ltd., Ibaraki, Corporate Number 9050001021560

株式会社光建

Line: Horticulture (UNSPSC 70110000)Register loaded to September 2026Compiled 16 October 2026

Koken Co., Ltd., Ibaraki, Corporate Number 9050001021560 — Japan · Procurement Portal award records · Supplier record: 2 award notices, all years (Mar 2025 – Feb 2026); 2 since January 2024 (1 buyer); 77th rank in the line (of 305 suppliers · 0.3%); 22 buyers never served (671 notices in the line from them).

Assay record ASY-JP-0GNAJKI1HY · Cite as: Assay Systems, “Koken Co., Ltd., Ibaraki, Corporate Number 9050001021560: 2 award notices in Japan since 2024”, https://assay-systems.com/register/jp/koken-co-ltd-ibaraki-corporate-number-9050001021560/

2
award notices, all years
Mar 2025 – Feb 2026
2
since January 2024
1 buyer
77th
rank in the line
of 305 suppliers · 0.3%
22
buyers never served
671 notices in the line from them

Own record by year

award notices, 2014 onward
1
1
2014201520162017201820192020202120222023202420252026

Who buys from Koken Co., Ltd., Ibaraki, Corporate Number 9050001021560

since January 2024
1buyers
2notices
100%top buyer
Cabinet Secretariat100.0%
2 notices

The line

since January 2024
681award notices
23buyers
305suppliers
18.6%held by top ten

Horticulture (UNSPSC 70110000)

259
222
200
202420252026Jan–Sep
77thof 305 suppliers
2notices name Koken Co., Ltd., Ibaraki, Corporate Number 9050001021560
0.3%share of the line
20.0%of 10 notices from Cabinet Secretariat
114new suppliers since 2024

Buyers that buy the line and never named Koken Co., Ltd., Ibaraki, Corporate Number 9050001021560

since April 2014
22buyers
671notices since 2024
20buyers took a new supplier
171suppliers came in that way
Ministry of Land, Infrastructure, Transport and Tourism
180 notices
Ministry of Finance
96 notices
Supreme Court of Japan
65 notices
Ministry of Justice
60 notices
Ministry of Health, Labour and Welfare
42 notices
Ministry of Agriculture, Forestry and Fisheries
41 notices
Public Prosecutors Office
38 notices
National Tax Agency
36 notices
Ministry of Defense
25 notices
Ministry of the Environment
16 notices
Cabinet Office
10 notices
Japan Meteorological Agency
10 notices
National Police Agency
10 notices
Ministry of Education, Culture, Sports, Science and Technology
9 notices
Japan Coast Guard
8 notices
House of Representatives
7 notices
Imperial Household Agency
5 notices
Ministry of Internal Affairs and Communications
4 notices
Board of Audit of Japan
3 notices
House of Councillors
3 notices
Forestry Agency
2 notices
Reconstruction Agency
1 notice

Suppliers next to it in the line

since January 2024
Abo Plus Co., Ltd.2 buyers
2 notices
Akiba Zoen Co., Ltd.2 buyers
2 notices
Aki Kenki Co., Ltd.1 buyer
2 notices
Koken Co., Ltd., Ibaraki, Corporate Number 9050001021560
2 notices

All 305 suppliers in the line

The extract

Every buyer, every supplier, award date, notice number and value where one is disclosed, behind the figures above.

Request extract

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.