Japan · Procurement Portal award records · Supplier record
Oba Co., Ltd., Tokyo
株式会社オオバ
Line: Management advisory services (UNSPSC 80100000) Register loaded to September 2026 Compiled 12 October 2026
Oba Co., Ltd., Tokyo — Japan · Procurement Portal award records · Supplier record: 85 award notices, all years (Mar 2015 – Aug 2026); 39 since January 2024 (5 buyers); 74th rank in the line (of 2,380 suppliers · 0.2%); 33 buyers never served (5,455 notices in the line from them).
Assay record ASY-JP-0UXUIPZ1IW · Cite as: Assay Systems, “Oba Co., Ltd., Tokyo in the Procurement Portal register for Japan”, https://assay-systems.com/register/jp/oba-co-ltd-tokyo/
Own record The line Buyers Suppliers 85
award notices, all years
Mar 2015 – Aug 2026
39
since January 2024
5 buyers
74th
rank in the line
of 2,380 suppliers · 0.2%
33
buyers never served
5,455 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 Oba Co., Ltd., Tokyo since January 2024 5 buyers
39 notices
54% top buyer
Ministry of Health, Labour and Welfare53.8%
21 notices
Ministry of Finance25.6%
10 notices
Ministry of Defense12.8%
5 notices
Ministry of Land, Infrastructure, Transport and Tourism5.1%
2 notices
Public Prosecutors Office2.6%
1 notice
3 buyers named Oba Co., Ltd., Tokyo before 2024 only.
The line since January 2024 10,799 award notices
41 buyers
2,380 suppliers
15.0% held by top ten
Management advisory services (UNSPSC 80100000)
74th of 2,380 suppliers
19 notices name Oba Co., Ltd., Tokyo
0.2% share of the line
0.1% of 1,505 notices from Ministry of Land, Infrastructure, Transport and Tourism
0.8% of 1,062 notices from Ministry of Health, Labour and Welfare
0.5% of 393 notices from Ministry of Defense
3.0% of 235 notices from Ministry of Finance
559 new suppliers since 2024
Buyers that buy the line and never named Oba Co., Ltd., Tokyo since April 2014 33 buyers
5,455 notices since 2024
31 buyers took a new supplier
640 suppliers came in that way
Ministry of the Environment
1,286 notices
Cabinet Office
861 notices
Ministry of Internal Affairs and Communications
835 notices
National Tax Agency
529 notices
Cabinet Secretariat
222 notices
Japan Patent Office
216 notices
Forestry Agency
197 notices
Digital Agency
136 notices
Japan Coast Guard
134 notices
Consumer Affairs Agency
133 notices
Ministry of Education, Culture, Sports, Science and Technology
124 notices
Ministry of Foreign Affairs
117 notices
Children and Families Agency
114 notices
National Police Agency
94 notices
Nuclear Regulation Authority
72 notices
Fire and Disaster Management Agency
65 notices
Japan Meteorological Agency
65 notices
Personal Information Protection Commission
44 notices
Financial Services Agency
43 notices
Japan Fair Trade Commission
35 notices
Supreme Court of Japan
32 notices
Fisheries Agency
19 notices
Japan Transport Safety Board
12 notices
Board of Audit of Japan
11 notices
Reconstruction Agency
11 notices
Japan Tourism Agency
10 notices
National Personnel Authority
10 notices
House of Representatives
9 notices
Casino Regulatory Commission
8 notices
Imperial Household Agency
5 notices
House of Councillors
3 notices
Agency for Cultural Affairs
2 notices
Environmental Dispute Coordination Commission
1 notice
Suppliers next to it in the line since January 2024 Makkinzeandokanpaniinkoporeiteddojapan4 buyers
19 notices
Nihonsan Gyo Counselor Kyokai1 buyer
19 notices
Nippon Kaiji Kentei Kyokai2 buyers
19 notices
Oba Co., Ltd., Tokyo
19 notices
All 2,380 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.