Japan · Procurement Portal award records · Supplier record

Koyu Business Co., Ltd.

株式会社コーユービジネス

Line: Reproduction services (UNSPSC 82120000)Register loaded to September 2026Compiled 12 October 2026

Koyu Business Co., Ltd. — Japan · Procurement Portal award records · Supplier record: 50 award notices, all years (Jul 2014 – Feb 2026); 6 since January 2024 (2 buyers); 147th rank in the line (of 370 suppliers · 0.1%); 26 buyers never served (424 notices in the line from them).

Assay record ASY-JP-1IDKSMZ0UX · Cite as: Assay Systems, “Koyu Business Co., Ltd. in the Procurement Portal register for Japan”, https://assay-systems.com/register/jp/koyu-business-co-ltd/

50
award notices, all years
Jul 2014 – Feb 2026
6
since January 2024
2 buyers
147th
rank in the line
of 370 suppliers · 0.1%
26
buyers never served
424 notices in the line from them

Own record by year

award notices, 2014 onward
3
4
5
5
3
3
7
2
6
6
3
2
1
2014201520162017201820192020202120222023202420252026

Who buys from Koyu Business Co., Ltd.

since January 2024
2buyers
6notices
50%top buyer
Ministry of Finance50.0%
3 notices
National Tax Agency50.0%
3 notices

4 buyers named Koyu Business Co., Ltd. before 2024 only.

The line

since January 2024
1,385award notices
32buyers
370suppliers
19.9%held by top ten

Reproduction services (UNSPSC 82120000)

564
513
308
202420252026Jan–Sep
147thof 370 suppliers
2notices name Koyu Business Co., Ltd.
0.1%share of the line
0.6%of 363 notices from National Tax Agency
45new suppliers since 2024

Buyers that buy the line and never named Koyu Business Co., Ltd.

since April 2014
26buyers
424notices since 2024
19buyers took a new supplier
61suppliers came in that way
Ministry of Justice
94 notices
Ministry of Economy, Trade and Industry
50 notices
Ministry of Defense
38 notices
Ministry of Internal Affairs and Communications
37 notices
Ministry of Education, Culture, Sports, Science and Technology
30 notices
Supreme Court of Japan
26 notices
National Police Agency
19 notices
Forestry Agency
17 notices
Cabinet Office
16 notices
Financial Services Agency
15 notices
Ministry of Foreign Affairs
13 notices
House of Councillors
11 notices
National Personnel Authority
11 notices
House of Representatives
9 notices
Japan Coast Guard
8 notices
Public Prosecutors Office
6 notices
Consumer Affairs Agency
5 notices
Board of Audit of Japan
4 notices
Children and Families Agency
4 notices
Ministry of the Environment
4 notices
Digital Agency
2 notices
Cabinet Secretariat
1 notice
Casino Regulatory Commission
1 notice
Japan Patent Office
1 notice
Japan Transport Safety Board
1 notice
Reconstruction Agency
1 notice

Suppliers next to it in the line

since January 2024
Akita Kappaninsatsu Co., Ltd., Akita, Corporate Number 34100010002601 buyer
2 notices
Akiyama Shokai Co., Ltd.2 buyers
2 notices
Anto Shuppan Co., Ltd.1 buyer
2 notices
Koyu Business Co., Ltd.
2 notices

All 370 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.