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Read moreSelected Clients Organizations that have worked with DEISO We've supported enterprises, suppliers, universities, research institutions, and environmental organizations on sustainability work. This section is here so you can see who has trusted DEISO and the kind of work environment we operate in. Recognized organizations We've delivered work for known organizations in energy, manufacturing, advanced materials, construction, environmental, and research sectors. International client experience Engagements span Japan, East Asia, Southeast Asia, the Gulf, Europe, and other markets — across very different…
Read moretraining programs: Designed for enterprise, industry professionals, and advanced learners. Expert-led instruction: Delivered by highly qualified specialists with strong academic and industry backgrounds. Advanced training materials: Continuously updated, professionally developed materials including datasets, case studies, tools, and structured documentation. Practical, implementation-focused learning: Beyond theory — real-world applications, exercises, and industry-based case studies. Structured knowledge transfer & skill development: Focused on building operational capability, not just conceptual understanding. On-demand, flexible training models: One-to-one or group training, with no minimum enrollment constraints.…
Read moreBrand Brand assets and PDFs DEISO's logos, brand identity, color palette, and company profile — for partners, suppliers, media, and public sustainability organizations using DEISO marks in approved communications. Every file below is the current 2026 brand. Older marks are deprecated and should not be used. Use the preview backgrounds as a guide — each version is built for a specific context: dark, light, transparent, horizontal, stacked, or symbol-only. Download full logo kit (.zip) → Brand identity The DEISO mark…
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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
Move your sustainability work from planning to execution — with DEISO support for LCA, GHG accounting, PCF, EPD, ESG evidence, carbon management, technical review, compliance reporting, sustainability system setup, implementation support, and execution-based capacity building.