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Introducing DEISO’s Advanced Life Cycle Costing Training Program
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Introducing DEISO’s Advanced Life Cycle Costing Training Program

DEISO is excited to announce the launch of our new environmental impactMake informed decisions based on data-driven analysisGain a competitive advantage in your industryOur expert instructors will guide you through real-world case studies and provide practical insights that you can apply to your own organization.Don't miss this opportunity to elevate your LCC expertise and drive positive change.

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Introducing DEISO’s Sustainability Independent Consultant (SIC) Training Program: Empowering Environmental Entrepreneurship through Independent Consultancy
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Introducing DEISO’s Sustainability Independent Consultant (SIC) Training Program: Empowering Environmental Entrepreneurship through Independent Consultancy

We are thrilled to announce the launch of our latest sustainability science training program: the Sustainability Independent Consultant (SIC) Training Program by DEISO, designed to empower individuals from diverse backgrounds – including industry professionals, corporate employees, and academics – this program is tailored for those looking to carve their path in sustainability and environmental consultancy.Two Pathways to Success: "SIC Professional" and "SIC Advanced" Training CoursesOur program offers two distinct training plans: SIC Professional and SIC Advanced. Whether you're just starting…

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DEISO LLC Unveils New Domain “dei.so” to Elevate Brand Presence and Global Accessibility
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DEISO LLC Unveils New Domain “dei.so” to Elevate Brand Presence and Global Accessibility

DEISO LLC Unveils New Domain ". As a dynamic and innovative company, DEISO LLC is committed to staying at the forefront of technology and market trends. The decision to adopt the new domain reflects the company's dedication to enhancing its brand recognition and ensuring seamless global accessibility to its online platform. Why the dei.so? Brand Enhancement: The adoption of the sleek and memorable "

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Announcing the launch of “Product Carbon Footprint” our brand-new calculation service.
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Announcing the launch of “Product Carbon Footprint” our brand-new calculation service.

We're excited to announce the launch of "Product Carbon Footprint," our brand-new calculation service. We help businesses figure out their carbon footprint and devise ways to make their operations less harmful. Product Carbon Footprint is considered not just CO2 emissions but also the other six emissions. A "Product Carbon Footprint" study is a sort of "Life Cycle Assessment" (LCA) one. A "carbon footprint" is a measurement that includes not just carbon dioxide emissions but also other greenhouse gas emissions. The…

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Introducing the “Special Life Cycle Assessment Training Program: Manual Calculation Approach”
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Introducing the “Special Life Cycle Assessment Training Program: Manual Calculation Approach”

The "Special LCA Training Program: Manual Calculation Approach" aims to teach participants how to perform a full Life Cycle Assessment (LCA) manually, from the cradle to the grave, using Microsoft Excel but without the use of any LCA software. The main advantage of this course is that it explains in detail how LCA calculations work in each of the phases of "classification," "characterization," "normalization," "weighting," and "Life Cycle Impact Assessment LCIA". Using a case study that includes raw material extraction,…

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Introducing Spherica: Your Place of Free Sustainability Resources
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Introducing Spherica: Your Place of Free Sustainability Resources

/*! elementor - v3.23.0 - 05-08-2024 */ .elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block} It is with great pleasure that we announce the launch of Spherca, DEISO's Sustainability Blog. At DEISO, we are committed to providing our audience members with resources that make it easier for them to adopt more environmentally friendly services and products. Our blog, which goes by the name "Spherca," is a repository for various in-depth articles, tutorials, and accessible PDF instructions and guides on several topics related to…

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New Life Cycle Assessment (LCA) Training Programs are Now Available
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New Life Cycle Assessment (LCA) Training Programs are Now Available

/*! elementor - v3.23.0 - 05-08-2024 */ .elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block} We are excited to announce the launch of our new Life Cycle Assessment (

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Notice of changing our business hours
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Notice of changing our business hours

The new business hours: 9 am - 5:30 pm, JST Monday-Friday. Our hours have been changed from "9 am - 5 pm" to "9 am - 5:30 pm"—Japan Standard Time (JST), Monday through Friday (except national holidays). A gentle reminder: We still offer the training on Saturdays and Sundays for our clients outside Japan who take remote training services. However, we would like to remind our clients that we do not respond to questions via email or phone on Saturdays and Sundays.…

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DEISO Contact & Quotation Inquiry

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Indicate whether your request is related to a real project or organizational need.

Request Details Guidance

Provide a concise and technically relevant description of your request to support accurate evaluation and quotation.

To improve clarity and response speed, include:

  • Product, system, or organizational context
  • Requested service (e.g., LCA, EPD, PCF, GHG, Scope 3)
  • Objective (e.g., compliance, reporting, decision-making)
  • Target market or standard (e.g., EU, EN 15804)
  • Timeline or deadline (if applicable)

If your request is brief or unclear, our team may follow up to request additional details to support accurate technical evaluation.

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Contact Info.

English Address:
Level 21 Shiodome Shibarikyu Building
1-2-3 Kaigan, Minato-ku
105-0022 Tokyo, Japan.

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

Phone (JP): 03-5403-6479 / 0488-72-6373
Phone (EN): 070-6969-7700
Fax: 03-5403-6475 / 0488-72-6373
Email: info@dei.so

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