Japan · Procurement Portal award records · Supplier record

Riso Kagaku Kogyo Co., Ltd.

理想科学工業株式会社

Line: Reproduction services (UNSPSC 82120000)Register loaded to September 2026Compiled 12 October 2026

Riso Kagaku Kogyo Co., Ltd. — Japan · Procurement Portal award records · Supplier record: 156 award notices, all years (Nov 2014 – Sep 2026); 34 since January 2024 (6 buyers); 6th rank in the line (of 370 suppliers · 1.9%); 22 buyers never served (332 notices in the line from them).

Assay record ASY-JP-0GPUU041YC · Cite as: Assay Systems, “Riso Kagaku Kogyo Co., Ltd. in the Procurement Portal register for Japan”, https://assay-systems.com/register/jp/riso-kagaku-kogyo-co-ltd/

156
award notices, all years
Nov 2014 – Sep 2026
34
since January 2024
6 buyers
6th
rank in the line
of 370 suppliers · 1.9%
22
buyers never served
332 notices in the line from them

Own record by year

award notices, 2014 onward
1
12
13
12
11
12
15
15
16
15
16
10
8
2014201520162017201820192020202120222023202420252026

Who buys from Riso Kagaku Kogyo Co., Ltd.

since January 2024
6buyers
34notices
44%top buyer
National Tax Agency44.1%
15 notices
Ministry of Health, Labour and Welfare38.2%
13 notices
Ministry of Defense5.9%
2 notices
Supreme Court of Japan5.9%
2 notices
Ministry of Education, Culture, Sports, Science and Technology2.9%
1 notice
Ministry of Finance2.9%
1 notice

4 buyers named Riso Kagaku Kogyo Co., Ltd. before 2024 only.

The line

since January 2024
1,385award notices
32buyers
370suppliers
19.9%held by top ten

Reproduction services (UNSPSC 82120000)

564
513
308
202420252026Jan–Sep
6thof 370 suppliers
26notices name Riso Kagaku Kogyo Co., Ltd.
1.9%share of the line
3.6%of 364 notices from Ministry of Health, Labour and Welfare
2.2%of 363 notices from National Tax Agency
1.8%of 57 notices from Ministry of Finance
2.6%of 38 notices from Ministry of Defense
45new suppliers since 2024

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

since April 2014
22buyers
332notices since 2024
16buyers took a new supplier
45suppliers came in that way
Ministry of Land, Infrastructure, Transport and Tourism
115 notices
Ministry of Economy, Trade and Industry
50 notices
Japan Fair Trade Commission
24 notices
National Police Agency
19 notices
Forestry Agency
17 notices
Cabinet Office
16 notices
Financial Services Agency
15 notices
Ministry of Foreign Affairs
13 notices
House of Councillors
11 notices
National Personnel Authority
11 notices
House of Representatives
9 notices
Japan Coast Guard
8 notices
Consumer Affairs Agency
5 notices
Board of Audit of Japan
4 notices
Children and Families Agency
4 notices
Ministry of the Environment
4 notices
Digital Agency
2 notices
Cabinet Secretariat
1 notice
Casino Regulatory Commission
1 notice
Japan Patent Office
1 notice
Japan Transport Safety Board
1 notice
Reconstruction Agency
1 notice

Suppliers next to it in the line

since January 2024
Happu Co., Ltd.7 buyers
29 notices
Komura Co., Ltd., Gifu9 buyers
27 notices
Riso Kagaku Kogyo Co., Ltd.
26 notices
Shobi Insatsu Co., Ltd.11 buyers
25 notices

All 370 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.