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Sustainability Operating Systems The systems your team uses to run sustainability work repeatedly — data, workflow, governance, review.

Services We review and execute LCA, Scope 3, PCF, and EPD projects.

Sustainability systems & tools LCC engines, PCF calculators, GHG data systems — built by people who do the science.

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What DEISO builds

Sustainability Operating Systems The systems your team uses to run sustainability work repeatedly — data, workflow, governance, review.

Services We review and execute LCA, Scope 3, PCF, and EPD projects.

Sustainability systems & tools LCC engines, PCF calculators, GHG data systems — built by people who do the science.

Case studies Real LCA, GHG, and PCF projects delivered for enterprise clients.

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What DEISO builds

Operating systems The systems your team uses to run sustainability work repeatedly — data, workflow, governance, review.

Services We audit, review, and execute LCA, Scope 3, PCF, and EPD projects.

Sustainability systems & tools LCC engines, PCF calculators, GHG data systems — built by people who do the science.

Case studies Real LCA, GHG, and PCF projects delivered for enterprise clients.

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How to Pronounce DEISO?

The company name “DEISO” is derived from the acronym for “Integrated Environmental Sustainability Oriented Research and Development.”

In Japanese:

統合的環境サステナビリティ研究開発（デーソ）

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DEISO is a Tokyo-based sustainability systems company. We design and deliver enterprise sustainability operating systems for LCA, GHG accounting, PCF, EPD, ESG, and AI-enabled sustainability work — combining technical execution, independent review, audit-readiness, implementation-focused capacity building, and structured intelligence for verification-ready outcomes.

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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.

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Latest News

DEISO Mirai AI Pro v5.0 Released: Enterprise Interface, Chat & Analysis ModesSeptember 26, 2026
DEISO Announces DEISO LCC Pro: A New Professional LCC/LCCA SoftwareAugust 10, 2026
DEISO Mirai AI Pro v5.0 Preview — Released June 1, 2026June 5, 2026
DEISO Mirai™ AI Pro – Enterprise AI Guidance for Sustainability Execution (Advances in Versions v4.1-v4.3)April 20, 2026
Rapid Sustainability Intelligence & Data Review Services (48–72 Hours) | DEISOApril 20, 2026

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