Our Clients

Selected Client Portfolio

Trusted by Global Enterprises, Industrial Groups, and Research Institutions

DEISO is an execution-driven technical consultancy supporting enterprise, industrial, institutional, and research clients across international markets.

Enterprise-Grade Execution

Technical sustainability work delivered for industrial, energy, manufacturing, construction, and environmental organizations.

International Reach

Engagements across East Asia, the Gulf, Europe, and applied research environments.

Industry + Research Interface

Work positioned between industrial implementation and rigorous applied sustainability research.

International Technical Engagements

DEISO’s client portfolio spans the energy, oil and gas, advanced materials, manufacturing, packaging, construction, and environmental sectors, alongside sustained work with universities and applied research bodies.

Organizations that have engaged DEISO include Saudi Arabian Oil Company (Aramco), Petroliam Nasional Berhad (PETRONAS), Saudi Energy / Saudi Electricity Company, DuPont de Nemours, Inc., Teijin Limited, Yazaki Corporation, GS Caltex Corporation, Taghleef Industries, Swegon Group AB, and Alliance Construction Materials Limited.

These engagements reflect DEISO’s ability to support complex sustainability work with the rigor, reliability, and delivery discipline expected by enterprise and institutional clients.

Enterprise and Academic Credibility

DEISO’s reach extends across both industry and academia, including engagements with The University of Tokyo, Seoul National University, Indian Institute of Technology Delhi, Nanyang Technological University Singapore, Technische Universität Dresden, and additional institutions across Europe, the Gulf, and East Asia.

This dual presence reflects DEISO’s capacity to operate at the intersection of industrial-scale execution and applied research.

Energy, Industry, and Manufacturing

Selected enterprise and industrial organizations that have engaged DEISO.

  • Saudi Arabian Oil Company (Aramco)
  • Petroliam Nasional Berhad (PETRONAS)
  • Saudi Energy / Saudi Electricity Company
  • DuPont de Nemours, Inc. (DuPont)
  • Teijin Limited
  • Yazaki Corporation
  • GS Caltex Corporation
  • Taghleef Industries
  • Swegon Group AB
  • Alliance Construction Materials Limited
  • Encory GmbH
  • Fixing Solutions GmbH
  • Inter Construction
  • CIFE Water & Energy, Tunisia

Universities and Research Institutions

Selected academic and applied research institutions served by DEISO.

  • The University of Tokyo (UTokyo)
  • Seoul National University (SNU)
  • Indian Institute of Technology Delhi (IIT Delhi)
  • Nanyang Technological University, Singapore (NTU Singapore)
  • Technische Universität Dresden (TU Dresden)
  • Gdańsk University of Technology
  • University of Doha for Science and Technology (UDST)
  • Özyeğin University
  • Sookmyung Women's University
  • Kwangwoon University
  • Republic Polytechnic, Singapore
  • Technological University of the Shannon: Midlands Midwest (TUS)

Environmental, Technical, and Advisory Organizations

Selected organizations across environmental, technical, innovation, and advisory sectors.

  • World Wide Fund for Nature (WWF)
  • Centre Technique des Industries Mécaniques (CETIM)
  • SLR Consulting
  • Seedstars
  • One Point Five
  • E-Cube Consulting
  • Inspekta

DEISO’s client portfolio demonstrates enterprise execution capacity, technical depth, international reach, and applied research credibility — supporting organizations that require sustainability work to be technically robust, commercially relevant, and decision-ready.

Global Client Reach

Trusted by Global Organizations

Supporting sustainability execution, technical review, and enterprise sustainability initiatives across 35+ countries.

Technical Authority

Technical Direction Behind DEISO Client Engagements

DEISO client and institutional engagements are supported by senior technical direction across sustainability execution, independent technical review, LCA, GHG accounting, PCF, EPD, and audit-ready delivery.

Technical direction is led by Dr. Mahdi Ikhlayel, PhD — Sustainability Director, Technical Execution & Independent Review.

View Technical Direction →

Identify the right solution for your organization, or consult Mirai AI Pro — DEISO's intelligent assistant — for tailored recommendations aligned to your operational context and technical challenges.

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DEISO Contact & Quotation Inquiry

Request Context

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.

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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