Sustainability operating systems
The company DEISO LLC is a Japan-based sustainability operating systems firm that builds and supports the enterprise environments organisations use to manage environmental sustainability work with technical consistency, governance, and execution confidence.
DEISO’s work covers the systems, data structures, workflows, calculations, technical review processes, reporting foundations, digital tools, and AI-supported workflows needed to execute sustainability functions across LCA, GHG accounting, PCF, EPD, ESG, carbon management, environmental performance, and sustainability governance.
DEISO’s core business activities include, but are not limited to:
Core business activities
- a Environmental engineering and sustainability services and solutions DEISO LLC provides comprehensive environmental engineering and sustainability services, covering assessment, analysis, system development, strategic planning, and technical advisory across a wide range of environmental and sustainability domains. These services are designed to support organisations in improving environmental performance, strengthening sustainability governance, and implementing structured, verification-ready solutions aligned with international standards and operational requirements.
- b Environmental qualification and certification support DEISO LLC provides technical support, advisory services, and structured preparation for environmental qualification and certification processes, including documentation development, methodological alignment, and readiness assessment in accordance with applicable standards and frameworks.
- c Research and development DEISO LLC conducts research and development activities focused on advancing environmental sustainability methodologies, digital systems, and structured data systems, including environmental modelling, carbon analytics, and AI-supported sustainability applications.
- d Human resource development and capacity building DEISO LLC provides execution-based capacity building programs and capability development services designed to strengthen technical skills, sustainability knowledge, and organisational capacity across environmental and sustainability domains.
- e IT services, software development, artificial intelligence, and cloud services DEISO LLC provides IT services, software development, AI-supported systems, and cloud-based systems tailored to environmental sustainability applications, including data platforms, analytical tools, and digital workspace systems. The company’s activities include the design, development, deployment, licensing, and commercialisation of software products, digital tools, and structured data systems supporting environmental analysis, carbon management, and sustainability performance.
- f Related business ventures DEISO LLC may engage in any lawful business activities that are incidental, complementary, or related to its core operations, including the expansion of services, systems, and technological offerings within environmental sustainability, digital systems, and associated fields.
Technical authority
Technical direction behind DEISO client engagements
DEISO client and institutional engagements carry senior technical direction across sustainability execution, independent technical review, LCA, GHG accounting, PCF, EPD, and verification-ready work.
Technical direction is led by Dr. Mahdi Ikhlayel, PhD — Sustainability Director, Sustainability OS Architect and Technical Execution.
02
Official name in Japanese
合同会社 DEISO
04
Establishment date
February 19, 2021
05
Address
DEISO LLC., Floor 21 Shiodome Shibarikyu Building, 1-2-3 Kaigan, Minato-ku, Tokyo 105-0022, Japan
06
Company bank
Mizuho Bank, Ltd.
Share this:
- Email a link to a friend (Opens in new window) Email
- Share on LinkedIn (Opens in new window) LinkedIn
- Share on X (Opens in new window) X
- Share on Facebook (Opens in new window) Facebook
- Share on WhatsApp (Opens in new window) WhatsApp
- Share on Reddit (Opens in new window) Reddit
- Print (Opens in new window) Print
- More






