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.

An environmental sustainability company based in Japan with a global perspective. DEISO delivers sustainability services and solutions worldwide.

Achieve environmental excellence with DEISO. We specialize in environmental engineering, sustainability, LCA, EPD, GHG, consulting, and HR-focused training, empowering businesses and individuals to reach their full potential.

Our Clients

Trusted worldwide for sustainability solutions

Make Impact.


DEISO empowers global sustainability from our base in Japan. We provide environmental engineering, R&D services, consulting, and training solutions with flexible in-house or remote options

DEISO helps organizations maximize their potential with science-based solutions and strategic human development. We provide the answers you need to make informed ecological decisions and achieve your goals.

What we Offer?

Your Needs

We offer a wide range of professional sustainability services to streamline your operations, boost efficiency, and propel your growth.

Your Industry

“We work with multiple industries, offering tailored strategies to boost efficiency, increase profitability, and drive sustainable growth.

Your Benefits

Discover how our services can benefit your company, clients, or projects.

Your Project

Contact us to discuss your needs or request a quote.

Life Cycle Assessment (LCA)

We Speak


Years of Experience in LCA

Learn more on our LCA services page 

LCA can transform industry, manufacturing, supply chains, and the environment for the better by increasing transparency and accountability. By quantifying environmental performance, LCA enables businesses to communicate their sustainability efforts effectively, building consumer trust and driving demand for environmentally responsible products.

Professional LCA Training

DEISO LCA Professional & Certified Training Programs.

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