Japan · Procurement Portal award records · Supplier record

Nihon Koei Co., Ltd.

日本工営株式会社

Line: Management advisory services (UNSPSC 80100000)Register loaded to September 2026Compiled 12 October 2026

Nihon Koei Co., Ltd. — Japan · Procurement Portal award records · Supplier record: 420 award notices, all years (Jun 2014 – Sep 2026); 123 since January 2024 (8 buyers); 22nd rank in the line (of 2,380 suppliers · 0.5%); 28 buyers never served (2,064 notices in the line from them).

Assay record ASY-JP-170WNNJ1JS · Cite as: Assay Systems, “Nihon Koei Co., Ltd. in the Procurement Portal register for Japan”, https://assay-systems.com/register/jp/nihon-koei-co-ltd/

420
award notices, all years
Jun 2014 – Sep 2026
123
since January 2024
8 buyers
22nd
rank in the line
of 2,380 suppliers · 0.5%
28
buyers never served
2,064 notices in the line from them

Own record by year

award notices, 2014 onward
4
14
17
24
35
35
41
42
43
42
38
45
40
2014201520162017201820192020202120222023202420252026

Who buys from Nihon Koei Co., Ltd.

since January 2024
8buyers
123notices
54%top buyer
Ministry of Land, Infrastructure, Transport and Tourism54.5%
67 notices
Ministry of the Environment34.1%
42 notices
Ministry of Agriculture, Forestry and Fisheries4.1%
5 notices
Forestry Agency1.6%
2 notices
Cabinet Office1.6%
2 notices
Fire and Disaster Management Agency1.6%
2 notices
Ministry of Economy, Trade and Industry1.6%
2 notices
Japan Coast Guard0.8%
1 notice

5 buyers named Nihon Koei Co., Ltd. before 2024 only.

The line

since January 2024
10,799award notices
41buyers
2,380suppliers
15.0%held by top ten

Management advisory services (UNSPSC 80100000)

3,817
3,843
3,139
202420252026Jan–Sep
22ndof 2,380 suppliers
50notices name Nihon Koei Co., Ltd.
0.5%share of the line
1.8%of 1,505 notices from Ministry of Land, Infrastructure, Transport and Tourism
0.1%of 1,373 notices from Ministry of Economy, Trade and Industry
1.1%of 1,286 notices from Ministry of the Environment
0.2%of 861 notices from Cabinet Office
559new suppliers since 2024

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

since April 2014
28buyers
2,064notices since 2024
26buyers took a new supplier
368suppliers came in that way
National Tax Agency
529 notices
Japan Patent Office
216 notices
Ministry of Justice
185 notices
Digital Agency
136 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
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
Public Prosecutors Office
24 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
Nihon Koei Co., Ltd.
50 notices
Ekkusu Toshi Kenkyusho Co., Ltd.2 buyers
49 notices
Nihon Sogokenkyusho Co., Ltd., Tokyo, Corporate Number 401070102608210 buyers
49 notices
JP Career Consulting Co., Ltd.14 buyers
47 notices

All 2,380 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.