Japan · Procurement Portal award records · Supplier record

Ko Yo Service Co., Ltd.

広陽サービス株式会社

Line: Refuse disposal and treatment (UNSPSC 76120000)Register loaded to September 2026Compiled 12 October 2026

Ko Yo Service Co., Ltd. — Japan · Procurement Portal award records · Supplier record: 146 award notices, all years (Feb 2015 – Apr 2026); 48 since January 2024 (11 buyers); 1st rank in the line (of 384 suppliers · 3.3%); 16 buyers never served (384 notices in the line from them).

Assay record ASY-JP-10O1JQ90SI · Cite as: Assay Systems, “Ko Yo Service Co., Ltd. in the Procurement Portal register for Japan”, https://assay-systems.com/register/jp/ko-yo-service-co-ltd/

146
award notices, all years
Feb 2015 – Apr 2026
48
since January 2024
11 buyers
1st
rank in the line
of 384 suppliers · 3.3%
16
buyers never served
384 notices in the line from them

Own record by year

award notices, 2014 onward
3
8
13
11
11
11
11
13
17
14
13
21
2014201520162017201820192020202120222023202420252026

Who buys from Ko Yo Service Co., Ltd.

since January 2024
11buyers
48notices
33%top buyer
National Tax Agency33.3%
16 notices
Ministry of Defense12.5%
6 notices
Ministry of Finance12.5%
6 notices
Ministry of Health, Labour and Welfare12.5%
6 notices
Ministry of Justice10.4%
5 notices
Ministry of Foreign Affairs4.2%
2 notices
National Police Agency4.2%
2 notices
Ministry of Land, Infrastructure, Transport and Tourism4.2%
2 notices
Digital Agency2.1%
1 notice
Public Prosecutors Office2.1%
1 notice
Cabinet Office2.1%
1 notice

The line

since January 2024
1,107award notices
27buyers
384suppliers
18.3%held by top ten

Refuse disposal and treatment (UNSPSC 76120000)

391
400
316
202420252026Jan–Sep
1stof 384 suppliers
37notices name Ko Yo Service Co., Ltd.
3.3%share of the line
2.4%of 205 notices from Ministry of Justice
12.2%of 131 notices from National Tax Agency
2.0%of 100 notices from Ministry of Health, Labour and Welfare
7.6%of 79 notices from Ministry of Defense
81new suppliers since 2024

Buyers that buy the line and never named Ko Yo Service Co., Ltd.

since April 2014
16buyers
384notices since 2024
13buyers took a new supplier
43suppliers came in that way
Ministry of the Environment
228 notices
Ministry of Agriculture, Forestry and Fisheries
40 notices
Forestry Agency
28 notices
Ministry of Economy, Trade and Industry
23 notices
Japan Coast Guard
22 notices
Supreme Court of Japan
10 notices
Ministry of Education, Culture, Sports, Science and Technology
8 notices
Nuclear Regulation Authority
6 notices
National Personnel Authority
4 notices
House of Councillors
3 notices
House of Representatives
3 notices
Imperial Household Agency
3 notices
Japan Fair Trade Commission
3 notices
Consumer Affairs Agency
1 notice
Japan Transport Safety Board
1 notice
Ministry of Internal Affairs and Communications
1 notice

Suppliers next to it in the line

since January 2024
Ko Yo Service Co., Ltd.
37 notices
Yamaki Co., Ltd., Saitama6 buyers
27 notices
Tatewaki Shoten Ltd.2 buyers
26 notices
OYO Corporation1 buyer
19 notices

All 384 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.