Japan · Procurement Portal award records · Supplier record
ReR Co., Ltd.
株式会社ＲｅＲ
Line: Building construction and support and maintenance and repair services (UNSPSC 72100000) Register loaded to September 2026 Compiled 12 October 2026
ReR Co., Ltd. — Japan · Procurement Portal award records · Supplier record: 355 award notices, all years (Jul 2020 – Sep 2026); 162 since January 2024 (17 buyers); 2nd rank in the line (of 3,215 suppliers · 1.1%); 21 buyers never served (319 notices in the line from them).
Assay record ASY-JP-0YOTZLJ05U · Cite as: Assay Systems, “ReR Co., Ltd. in the Procurement Portal register for Japan”, https://assay-systems.com/register/jp/rer-co-ltd/
Own record The line Buyers Suppliers 355
award notices, all years
Jul 2020 – Sep 2026
162
since January 2024
17 buyers
2nd
rank in the line
of 3,215 suppliers · 1.1%
21
buyers never served
319 notices in the line from them
Own record by year award notices, 2014 onward 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026
Who buys from ReR Co., Ltd. since January 2024 17 buyers
162 notices
36% top buyer
Ministry of Land, Infrastructure, Transport and Tourism36.4%
59 notices
Ministry of Health, Labour and Welfare13.6%
22 notices
Ministry of Finance13.0%
21 notices
National Tax Agency8.6%
14 notices
Supreme Court of Japan8.0%
13 notices
Ministry of Justice6.8%
11 notices
Ministry of Education, Culture, Sports, Science and Technology2.5%
4 notices
Ministry of Agriculture, Forestry and Fisheries2.5%
4 notices
Japan Coast Guard1.9%
3 notices
National Police Agency1.9%
3 notices
Cabinet Office1.2%
2 notices
Ministry of the Environment0.6%
1 notice
Forestry Agency0.6%
1 notice
Ministry of Internal Affairs and Communications0.6%
1 notice
Japan Meteorological Agency0.6%
1 notice
Ministry of Defense0.6%
1 notice
Public Prosecutors Office0.6%
1 notice
1 buyer named ReR Co., Ltd. before 2024 only.
The line since January 2024 13,083 award notices
39 buyers
3,215 suppliers
9.0% held by top ten
Building construction and support and maintenance and repair services (UNSPSC 72100000)
2nd of 3,215 suppliers
145 notices name ReR Co., Ltd.
1.1% share of the line
1.0% of 5,874 notices from Ministry of Land, Infrastructure, Transport and Tourism
1.7% of 1,127 notices from Ministry of Finance
0.6% of 1,111 notices from Ministry of Justice
2.9% of 763 notices from Ministry of Health, Labour and Welfare
693 new suppliers since 2024
Buyers that buy the line and never named ReR Co., Ltd. since April 2014 21 buyers
319 notices since 2024
18 buyers took a new supplier
91 suppliers came in that way
House of Councillors
79 notices
Ministry of Economy, Trade and Industry
41 notices
Imperial Household Agency
37 notices
National Personnel Authority
17 notices
Fire and Disaster Management Agency
16 notices
Children and Families Agency
13 notices
Japan Patent Office
13 notices
Ministry of Foreign Affairs
11 notices
Fisheries Agency
10 notices
Nuclear Regulation Authority
6 notices
Board of Audit of Japan
5 notices
Japan Transport Safety Board
5 notices
Central Labour Relations Commission
4 notices
Consumer Affairs Agency
4 notices
Cabinet Secretariat
3 notices
Financial Services Agency
2 notices
Cabinet Legislation Bureau
1 notice
Casino Regulatory Commission
1 notice
Japan Fair Trade Commission
1 notice
Reconstruction Agency
1 notice
Suppliers next to it in the line since January 2024 Mitsubishidenki Building Solutions Co., Ltd.12 buyers
114 notices
Nippon Ochisuerebeta Co., Ltd.10 buyers
114 notices
Hitachi Building System Co., Ltd.8 buyers
93 notices
All 3,215 suppliers in the line
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.