Japan · Procurement Portal award records · Supplier record

Seisosha Co., Ltd.

株式会社静掃舎

Line: Cleaning and janitorial services (UNSPSC 76110000)Register loaded to September 2026Compiled 12 October 2026

Seisosha Co., Ltd. — Japan · Procurement Portal award records · Supplier record: 78 award notices, all years (Mar 2015 – Apr 2026); 25 since January 2024 (8 buyers); 20th rank in the line (of 649 suppliers · 0.7%); 12 buyers never served (342 notices in the line from them).

Assay record ASY-JP-0NY5PI71B3 · Cite as: Assay Systems, “Seisosha Co., Ltd. in the Procurement Portal register for Japan”, https://assay-systems.com/register/jp/seisosha-co-ltd/

78
award notices, all years
Mar 2015 – Apr 2026
25
since January 2024
8 buyers
20th
rank in the line
of 649 suppliers · 0.7%
12
buyers never served
342 notices in the line from them

Own record by year

award notices, 2014 onward
1
3
4
6
6
7
7
9
10
9
8
8
2014201520162017201820192020202120222023202420252026

Who buys from Seisosha Co., Ltd.

since January 2024
8buyers
25notices
40%top buyer
Ministry of Land, Infrastructure, Transport and Tourism40.0%
10 notices
Ministry of Finance20.0%
5 notices
Japan Coast Guard12.0%
3 notices
Ministry of Justice8.0%
2 notices
Public Prosecutors Office8.0%
2 notices
Cabinet Office4.0%
1 notice
National Tax Agency4.0%
1 notice
Ministry of Internal Affairs and Communications4.0%
1 notice

4 buyers named Seisosha Co., Ltd. before 2024 only.

The line

since January 2024
3,113award notices
24buyers
649suppliers
26.8%held by top ten

Cleaning and janitorial services (UNSPSC 76110000)

1,076
1,053
984
202420252026Jan–Sep
20thof 649 suppliers
22notices name Seisosha Co., Ltd.
0.7%share of the line
1.2%of 866 notices from Ministry of Land, Infrastructure, Transport and Tourism
0.7%of 307 notices from Ministry of Justice
1.6%of 304 notices from Ministry of Finance
0.4%of 269 notices from National Tax Agency
120new suppliers since 2024

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

since April 2014
12buyers
342notices since 2024
8buyers took a new supplier
87suppliers came in that way
Supreme Court of Japan
124 notices
Ministry of Defense
57 notices
Ministry of the Environment
36 notices
Japan Meteorological Agency
35 notices
House of Representatives
23 notices
National Police Agency
22 notices
Imperial Household Agency
20 notices
Cabinet Secretariat
10 notices
Ministry of Education, Culture, Sports, Science and Technology
9 notices
Central Labour Relations Commission
3 notices
National Personnel Authority
2 notices
House of Councillors
1 notice

Suppliers next to it in the line

since January 2024
Forward Ltd., Osaka4 buyers
24 notices
Rendingu Help Service Co., Ltd.3 buyers
23 notices
Tobu Co., Ltd., Miyagi6 buyers
23 notices
Seisosha Co., Ltd.
22 notices

All 649 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.