Japan · Procurement Portal award records · Supplier record

Keiyo Kogyo Co., Ltd.

株式会社京葉興業

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

Keiyo Kogyo Co., Ltd. — Japan · Procurement Portal award records · Supplier record: 40 award notices, all years (Mar 2018 – Mar 2026); 17 since January 2024 (5 buyers); 8th rank in the line (of 384 suppliers · 1.2%); 23 buyers never served (495 notices in the line from them).

Assay record ASY-JP-02IVF930V6 · Cite as: Assay Systems, “Keiyo Kogyo Co., Ltd. in the Procurement Portal register for Japan”, https://assay-systems.com/register/jp/keiyo-kogyo-co-ltd/

40
award notices, all years
Mar 2018 – Mar 2026
17
since January 2024
5 buyers
8th
rank in the line
of 384 suppliers · 1.2%
23
buyers never served
495 notices in the line from them

Own record by year

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

Who buys from Keiyo Kogyo Co., Ltd.

since January 2024
5buyers
17notices
29%top buyer
Ministry of Defense29.4%
5 notices
Ministry of Health, Labour and Welfare17.6%
3 notices
Japan Patent Office17.6%
3 notices
Ministry of Justice17.6%
3 notices
Ministry of the Environment17.6%
3 notices

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
8thof 384 suppliers
13notices name Keiyo Kogyo Co., Ltd.
1.2%share of the line
1.3%of 228 notices from Ministry of the Environment
1.0%of 205 notices from Ministry of Justice
3.0%of 100 notices from Ministry of Health, Labour and Welfare
6.3%of 79 notices from Ministry of Defense
81new suppliers since 2024

Buyers that buy the line and never named Keiyo Kogyo Co., Ltd.

since April 2014
23buyers
495notices since 2024
18buyers took a new supplier
64suppliers came in that way
National Tax Agency
131 notices
Ministry of Land, Infrastructure, Transport and Tourism
84 notices
Ministry of Finance
63 notices
Ministry of Agriculture, Forestry and Fisheries
40 notices
Forestry Agency
28 notices
Public Prosecutors Office
26 notices
Ministry of Economy, Trade and Industry
23 notices
Japan Coast Guard
22 notices
National Police Agency
22 notices
Supreme Court of Japan
10 notices
Cabinet Office
8 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
Ministry of Foreign Affairs
3 notices
Digital Agency
2 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
Haishi Stem Co., Ltd.4 buyers
13 notices
Kanpo Co., Ltd., Kyoto4 buyers
13 notices
Keiyo Kogyo Co., Ltd.
13 notices
Maruki Shokai Co., Ltd.1 buyer
12 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.