Tel: 03-5403-6479 (Japanese)
Tel: +1-361-298-0005 (English)
Fax: 0488-72-6373
Business Hours:

Monday-Friday 9:00-17:30 JST
Except Japanese national holidays.

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Monday-Friday, 9:00-17:30 JST (Except Japanese Public Holidays).


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For Quotation Requests: Please fill out the contact form here so we can provide a price quotation.

Office (Tokyo, Japan)

〒105-0022 東京都港区海岸1-2-3<br> 汐留芝離宮ビルディング21階, 合同会社DEISO.

DEISO LLC., Level 21 Shiodome Shibarikyu Building, 1-2-3 Kaigan Minato-ku, Tokyo 105-0022 Japan
Please submit the form in English or Japanese.

Contact Form

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Please note that we can not provide prices by email for on-site training (training outside Japan or inside Japan). Please select from the previous step: "An official quotation with net cost."

Discover DEISO Training: Delve into DEISO's cutting-edge, certified training in sustainability, Life Cycle Assessment (LCA), LCA software and databases, GHG accounting, Carbon Footprint, Environmental Product Declaration (EPD), and beyond. Uncover our comprehensive training portfolio here.

Traing Programs

End of the year sales.

All of our training programs are now on sale!

up to 50% off