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About BrainFirm

We established BrainFirm Co., Ltd. in 1998 in Japan.

Since then, we have accumulated expertise in public-private partnership (PPP) and ample experience in consultancy for municipalities and private corporations. We have strength in acquiring trust through the presentation of documents in PPP screening processes.

As our ample experiences were evaluated, we became the partner of the PPP agreement certified by the Japanese government’s Ministry of Land, Infrastructure, Transport, and Tourism.

We also have high-level assessment skills in the management of public facilities. We have received more than 100 requests for evaluation of public facilities management from municipalities.

Building on our expertise and experiences in PPP, we started to provide high-quality sustainability consultancy in Japan.

BrainFirm Co., Ltd.


Tokyo Office

4-1-1 Akasaka, Minato-ku, Tokyo, 107-0052, Japan

Phone: +81-3-6234-4165

Osaka Office

1-6-2 Kyomachibori, Nishi-ku, Osaka, 550-0003, Japan

Phone: +81-6-6441-2211

Office hours:

9:00 – 17:00 (JST)/0:00 – 8:00 (GMT)


Satomi Shintani, Director, Email:

Eiichi Kon, VP, Email:

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