DEISO Mirai AI Pro v5.0 Released: Enterprise Interface, Chat & Analysis Modes
Product update DEISO Mirai AI Pro Preview has been retired The Pro Preview of DEISO Mirai AI is no longer available. Mirai has left the preview stage, and…
NewsProduct update DEISO Mirai AI Pro Preview has been retired The Pro Preview of DEISO Mirai AI is no longer available. Mirai has left the preview stage, and…
AnnouncementsProduct announcement DEISO announces DEISO LCC Pro, new professional software for LCC and LCCA A desktop application for life cycle costing, total cost of ownership, procurement evaluation, and…
Product announcement Announcing DEISO Mirai™ AI Pro v5.0 Preview — Released June 1, 2026 Release dateJune 1, 2026 Versionv5.0 Preview TypePreview architectural release StatusCurrent public development line Today,…
AnnouncementsProduct Update DEISO Mirai™ AI Pro: From AI Chat to Structured Sustainability Execution Guidance (Advances in Versions v4.1–v4.3) DEISO Mirai™ AI Pro is an enterprise AI guidance interface…
AnnouncementsDEISO announcement DEISO launches rapid sustainability data review services (48–72 hours) A new portfolio of rapid expert review services covering Scope 3, PCF, EPD, supplier data, and LCA…
AnnouncementsDEISO AI guidance What is DEISO Mirai™ AI Pro? An AI guidance interface built to help users explore DEISO’s services, execution paths, sustainability systems, and technical support routes…

Career opportunity Global execution and validation network Senior Sustainability Technical Auditor and Compliance Readiness Specialist Application deadline June 20, 2026 Job ID DSJ04162649 Company DEISO LLC Language requirement…
AnnouncementsCareer opportunity Global execution and validation network Senior Sustainability Systems and Digital Architecture Specialist Application deadline June 20, 2026 Job ID DSJ04162624 Company DEISO LLC Language requirement Business-level…
Blog PostsTechnical guide 15 EPD mistakes that delay verification, trigger corrections, and weaken submission quality Environmental Product Declarations rarely run into verification problems because the framework is unclear. In…
Blog PostsDatabase Product coverage, data philosophy, and practical use A literature-based database built to capture the full set of available emission factors and inventory datapoints across agriculture and industrial…
Blog PostsPerspective Why AI cannot replace professional training programs A strategic view for organizations and technical experts. Artificial intelligence is changing how professionals reach information. AI tools explain concepts,…
AnnouncementsNew service Life Cycle Sustainability Assessment (LCSA) Integrated environmental, social, and economic analysis for funded academic projects. Most sustainability studies still operate in silos. Environmental impact is assessed…
AnnouncementsService announcement DEISO announces 13 pre-submission audit and advisory services Independent technical reinforcement for sustainability governance and verification readiness — before external review begins. Sustainability reporting alone is…
AnnouncementsAnnouncement Advanced LCA capacity building: 1:1 software coaching for openLCA, SimaPro, and GaBi A focused capacity building service for experienced practitioners who need targeted capability development rather than…
Blog PostsBlog posts How to calculate Scope 3 emissions Organizations are increasingly required to measure and report greenhouse gas emissions across their value chains. While Scope 1 and Scope…
Blog PostsExecutive overview The procurement carbon gap facing Saudi industrial suppliers Under Vision 2030, carbon transparency has moved from reporting obligation to supplier qualification criterion. Saudi Arabia’s industrial transformation…
Blog PostsTechnical guide EPD development mistakes that delay verification How to avoid rework and audit risk before the verifier opens the file. Environmental Product Declarations are increasingly required for:…
Blog PostsScope 3 governance Why 70% of Scope 3 carbon inventories fail — and the governance framework that fixes it Scope 3 emissions are no longer optional disclosure metrics.…
AnnouncementsAudience Built for practice, not theory alone EMA training programs are built for professionals working in real decision-making environments: Corporate sustainability and ESG teams Environmental consultants and analysts…
NewsNews Enterprise capacity building in LCA and EPD: advanced training programs and courses run for Inter Construction (North Macedonia) in Tokyo DEISO LLC has supported Inter Construction, a…
NewsPartnership announcement DEISO launches a dedicated website for the FRAMENCE Digital Twin Platform DEISO LLC is pleased to announce the official launch of a dedicated website for the…
Blog PostsIntroduction In the urgent race to mitigate climate change, innovative strategies such as Carbon Capture and Utilization (CCU), Carbon Capture and Storage (CCS), and Carbon Dioxide Removal (CDR)…
NewsPress release DEISO partners with Framence to bring digital twin innovation to Asia and the Middle East Tokyo, Japan — July 1, 2025 DEISO LLC, a Japan-based leader…
NewsPress release DEISO and IGSC sign strategic memorandum of understanding Tokyo, Japan — June 15, 2025 DEISO LLC is pleased to announce the signing of a Memorandum of…
Blog PostsFree toolkit Unlock sustainability, productivity, and efficiency with DEISO’s free toolkit At DEISO, we believe powerful tools shouldn’t come with a heavy price tag or technical hurdles. That’s…

Now free Eco CFs Finder AI — the free tool for characterization factor lookup We are pleased to announce that the Eco CFs Finder AI (Standard Version) is…
Blog PostsProduct update Mirai AI Pro got smarter with version 3.3.2 At DEISO, we work continuously to produce world-class features for our clients, especially across our AI-supported services, training…
Blog PostsIntroduction — The ESG Talent Gap in AsiaAsia is undergoing a rapid transformation in how businesses, governments, and institutions approach Environmental, Social, and Governance (ESG) principles. Regulatory pressures…
Blog PostsIntroduction The carbon accounting conundrum Across industries, sustainability has shifted from a corporate buzzword to a strategic necessity. Yet one crucial domain remains fundamentally flawed: carbon accounting. Despite…
Blog PostsTable of Contents Section 1: The Hidden Cost of Non-ComplianceEnvironmental compliance is not merely a legal requirement—it is a central pillar of responsible business practice and long-term viability.…
Blog PostsWhy DEISO 11 reasons why global experts trust DEISO sustainability training 1 Global reach with a proven track record DEISO has run training programs across Japan, the Middle…
Blog PostsSection 1: Introduction - The Dawn of Sustainable Digital TransformationIn today’s world, sustainability is no longer a corporate buzzword—it's a business imperative. Organizations across manufacturing, infrastructure, and logistics…
JobsCareers Digital Twin Engineer job opening in Tokyo Are you an experienced Digital Twin Engineer with AI skills and a passion for no-code development? DEISO LLC is looking…
JobsJob ID: DSJOB-05282902523 Join DEISO as an AI engineer Full-time · Tokyo or remote · Entry level DEISO LLC is a forward-thinking Japanese environmental sustainability company driving innovation…
Blog PostsTable of Contents SECTION 1: Introduction — Why Sustainability Reporting Standards Matter NowIn today’s business landscape, sustainability is no longer optional—it’s strategic. Companies across sectors are under growing…
Blog PostsTable of Contents Section 1: Introduction – The Dawn of Sustainable Digital TransformationThe sustainability conversation has shifted. It’s no longer about whether businesses should act; it’s about how…
AnnouncementsSection 1: Introduction to ISO 14000The ISO 14000 family is a globally recognized series of environmental management standards developed by the International Organization for Standardization (ISO). These standards…

Comparing Life Cycle Assessment (LCA) and Environmental Impact Assessment (EIA)IntroductionLife Cycle Assessment (LCA) and Environmental Impact Assessment (EIA) are two essential tools used by environmental engineers and sustainability…
Blog PostsLCA methodology How to choose the correct Life Cycle Impact Assessment (LCIA) method for your LCA study Life Cycle Impact Assessment (LCIA) is the third phase of a…
Blog PostsExecutive summary Executive summary and introduction Japan is at a defining point in its sustainability transition. Japan is committed to carbon neutrality by 2050. Its current nationally determined…
Blog PostsSection 1: What Is Normalization in LCA? Normalization is the process of placing environmental impact results into context by comparing them to a reference value, such as a…
AnnouncementsNews DEISO officially launches its Global Partnership Programs DEISO is proud to announce the launch of its Global Partnership Programs, a bold initiative built to expand our worldwide…
AnnouncementsNews Introducing DEISO’s enterprise AI data solution Outsource your data challenges. Focus on results. Enterprise sustainability data is complex — often fragmented across systems, formats, and frameworks. From…
AnnouncementsAnnouncement DEISO is now on Facebook, X, and Instagram — join us and be among the first to follow We are expanding our digital presence, and you are…
Blog PostsDownload the presentation 1. Introduction: DEISO’s Global Excellence in Training DeliveryDEISO’s commitment to delivering world-class, premium training experiences is demonstrated through its proven global track record. With training…
AnnouncementsNews Introducing Satori AI Engine: equipping DEISO projects with intelligent storytelling and deep data insights DEISO proudly announces the launch of the Satori AI Engine — an internal,…
Company announcement Updated company email addresses and brand identity Dear clients, partners, and stakeholders, We are pleased to announce important updates reflecting DEISO’s recent global developments, mission expansion,…
AnnouncementsStrategic ESG Mastery & AI-Powered Reporting for Enterprises The Most Up-to-Date and Comprehensive ESG Training Available We are excited to announce our advanced, innovative, and most up-to-date training…
AnnouncementsNews After an extended beta phase and extensive project testing, DEISO Visly — our fully integrated, AI-augmented Project Intelligence & Visualization Portal — is now officially live and…
AnnouncementsNews Announcing DEISO Mirai AI v3.0 — a smarter, more personalized sustainability chatbot What is Mirai AI? Mirai AI is DEISO’s intelligent, multilingual chatbot built to help visitors,…
Blog PostsBlog posts Introduction As organisations intensify efforts on climate change, accurately measuring and managing greenhouse gas emissions has become a core commercial capability. Emissions are conventionally categorised into…
AnnouncementsCareers DEISO LLC is seeking highly qualified and experienced Lead GHG Verifiers to join our expert team. This is an excellent opportunity to work with a leading organization…
Blog PostsBlog posts LCA software compared: LCA for Experts (GaBi), SimaPro, and openLCA Life Cycle Assessment has become an essential tool for evaluating the environmental footprint of products and…
Blog PostsTraining Why you need professional training In today’s rapidly evolving world, staying ahead in the field of environmental science, engineering, and sustainability requires continuous learning and skill development.…
NewsNews Enterprise capacity building in GHG verification: lead GHG verifier training program and courses run for Saudi Aramco in Tokyo From 21 to 25 October 2024, DEISO supported…
TechnologyDEISO is committed to driving environmental sustainability. Our core focus remains on providing innovative solutions to address pressing environmental challenges. However, we've expanded our offerings to include IT…
AnnouncementsNews DEISO expands its reach: equipping academia with DEISO solutions Today, we’re thrilled to announce DEISO’s latest venture into the academic world. Our innovative solutions are built to…
AnnouncementsNews Overview DEISO AI is a comprehensive suite of cutting-edge AI solutions built to address various challenges by synergizing knowledge, technology, and sustainability. This innovative platform encompasses several…
AnnouncementsNews DEISO is excited to announce the launch of our new Life Cycle Costing (LLC) Advanced Training Program. This comprehensive program equips professionals with the essential knowledge and…
NewsNews Introducing the Energy Transition Strategies Advanced Training Program DEISO is excited to introduce the “Energy Transition Strategies Advanced Training Program”, a comprehensive program built to equip professionals…
AnnouncementsNews Hello, I’m Mirai! Your AI-supported assistant to DEISO, free to use at no cost “Hello, I’m Mirai! I am Mirai (未来), an AI-supported assistant created by DEISO…
TechnologyNews DEISO, a provider of sustainability services and solutions, is thrilled to announce the launch of “My DEISO”, a comprehensive cloud platform built to streamline client interactions and…
UpdatesNews DEISO, a provider of sustainability services and solutions, is excited to announce the launch of its redesigned website. After months of dedicated development, DEISO has introduced a…
JobsCareers DEISO LLC is seeking a highly motivated and experienced Life Cycle Assessment (LCA) Specialist to join our growing team. In this role, you will play a key…
Featured NewsNews Enterprise capacity building in Life Cycle Assessment (LCA): certified training program and courses run for Saudi Aramco in Tokyo DEISO LLC supported Saudi Aramco through a structured…
Featured NewsNews Enterprise capacity building in circular economy: professional training program and courses run for Saudi Aramco in Tokyo DEISO supported Saudi Aramco through a targeted enterprise capacity building…
Blog PostsBlog posts Introduction The daily items we buy and discard represent only a fraction of the total waste generated within a product’s life cycle. To fully assess the…
AnnouncementsUpdate: "DEISO Spectrum" is now "DEISO Spectra." Available at: https://sp.dei.so What is DEISO Spectrum? DEISO Spectrum is a cloud-based platform for DEISO's training clients to streamline the process…
Featured NewsNews Onsite Life Cycle Assessment training for Aramco in Tokyo In December 2023, DEISO had the pleasure of hosting onsite training for Aramco at its office in Tokyo…
AnnouncementsNews DEISO LLC unveils new domain “dei.so” to elevate brand presence and global accessibility In a strategic move to reinforce its brand identity and extend its global reach,…
Featured NewsNews Two Life Cycle Assessment training programs run for PETRONAS in Malaysia DEISO LLC is pleased to announce that it has successfully run two Life Cycle Assessment (LCA)…
Blog PostsBlog posts Introduction Market research is important to every company strategy since it provides critical insights into customer requirements, industry trends, and competitive landscapes. This article goes into…
Blog PostsBlog posts Introduction The Fourth Industrial Revolution, known as Industry 4.0, is transforming the way industries work by using digital technology to improve productivity, efficiency, and competitiveness. This…
Blog PostsIntroduction Dimethyl Ether, sometimes known as DME, is a flexible chemical molecule with various uses. It is a colorless gas with potential use as a fuel, a propellant,…
JobsCareers Hiring a Personal Assistant: DEISO is urgently seeking and employing a personal assistant for DEISO CEO (dei.so): (1) Native Japanese speaker, (2) business-level English speaker, and (3)…
Featured NewsNews Enterprise capacity building in GHG verification: lead verifier training program and courses run for Saudi Energy (formerly Saudi Electricity Company – SEC) DEISO supported Saudi Energy (formerly…
Featured NewsNews Enterprise capacity building in Life Cycle Assessment (LCA): professional training program and courses run for Saudi Energy (formerly Saudi Electricity Company – SEC) in Riyadh DEISO supported…
Featured NewsNews Capacity building in Life Cycle Assessment (LCA) for waste management: training program and courses run at the University of Doha for Science and Technology (UDST), Qatar DEISO…
Featured NewsNews Enterprise capacity building in ESG: five-day training program and courses run for Saudi Energy (formerly Saudi Electricity Company – SEC) in Riyadh DEISO supported Saudi Energy (formerly…
Blog PostsBlog posts Background Carbon dioxide is a colourless gas present in the atmosphere at approximately 0.04 percent by volume, or around 420 parts per million. The molecule contains…
Blog PostsBlog posts Overview Carbon is the building block of all organic compounds and moves continuously between living organisms, the atmosphere, the oceans, and the geological record. In carbon…
Blog PostsMultifunctionality Allocation and system expansion in life cycle assessment Most real production systems make more than one thing. A refinery yields a dozen fractions from one barrel. Chlor-alkali…
Blog PostsBlog posts Overview Life Cycle Working Environment (LCWE) assesses occupational health and safety across a product’s life cycle — how many accidents, injuries, and cases of work-related illness…
Blog PostsBlog posts Overview Rising greenhouse gas emissions from fossil fuel combustion and other human activities have made emission reduction urgent across every industrial sector. Carbon capture and utilization…
Blog PostsBlog posts Introduction Life Cycle Cost Analysis (LCCA) is the technique for examining an asset’s entire cost of ownership — acquisition, operation, maintenance, and disposal — expressed in…
Blog PostsBlog posts Introduction The conversion of hydrogen into usable energy has become one of the most discussed routes in the energy transition. This article covers the methods of…
Blog PostsBlog posts Sustainability Sustainability is a significant idea that has recently attracted more attention. The need for sustainable practices has grown as the world’s population continues to rise.…
Blog PostsBlog posts Introduction The world is facing a development crisis due to the rapid increase in population and its need for resources. The volume of waste created and…
Blog PostsBlog posts Briefing: what is the Greenhouse Gas Protocol? The Greenhouse Gas Protocol is the international accounting framework used to measure, manage, and report greenhouse gas emissions. It…
Blog PostsBlog posts Introduction Water is a vital resource for life, and its availability and quality are essential for economic growth and the welfare of people. It is crucial…
Blog PostsBlog posts Overview GaBi is a professional Life Cycle Assessment (LCA) software platform used to model and evaluate the environmental impacts of products, technologies, services, and systems. By…
Blog PostsContext Why social responsibility and CSR matter in real organizations Social responsibility and Corporate Social Responsibility (CSR) are often discussed as values-based concepts, but in real organizations they…
Blog PostsBlog posts Introduction Although they are different, the words “carbon footprint,” “corporate carbon footprint,” and “GHG accounting” are sometimes used synonymously. In this article, we will contrast these…
Blog PostsIntroduction Monte Carlo simulation, uncertainty analysis, and sensitivity analysis in life cycle assessment When certain variables are changed or updated, numerous outcomes can be modeled using a computerised…
Blog PostsBackground Data collection is one of the most critical steps in the life cycle evaluation process. LCA is a thorough assessment of a system's or product's environmental impacts.…
Blog PostsBlog posts Introduction A relatively recent life cycle analysis method, known as Social Life Cycle Assessment (S-LCA), assesses the social impacts of products and services from conception through…
Blog PostsLCIA methods Normalization and weighting in life cycle assessment Environmental impact scores in LCA are expressed in physical units representing the potential for impact. Results from different impact…
Blog PostsBlog posts What is Environmental Design Leadership (LEED) The United States Green Building Council developed the Leadership in Energy and Environmental Design (LEED) green building rating system (USGBC).…
AnnouncementsWe'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…
Blog PostsBlog posts Environment and environmental health concerns In most industrialized nations, there is widespread public concern about the environment’s health. Implementing methods that limit environmental harm is vital…
AnnouncementsThe "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,…
Reference Summary of LCA terminology Terms Meaning Alternative terms of the same meaning Life Cycle Inventory (LCI) All data required to quantify the inputs (resource and energy flows)…
UpdatesNews Specialist Training Program of Environment, Social, and Governance (ESG) Reporting A professional training program will prepare employees for responding to environmental, social, and governance (ESG) needs, conducting…
UpdatesNews Our GHG Lead Verifier training program helps your business satisfy ISO 14064 climate change standards. Covers ISO 14064 (Parts 1–3), GHG inventories, and management system requirements. ISO…
UpdatesNews Train your organization’s employees on the Circular Economy via professional skills, waste management, resource efficiency, and business models; all essential and advanced topics are covered — a…
Blog PostsDefinition What an Environmental Product Declaration actually is An Environmental Product Declaration (EPD) is a Type III environmental declaration under ISO 14025: a standardized, independently verified, quantified report…
Blog PostsWhat is Material Flow Analysis (MFA)? Systematic accounting of the movements and stockpiles of various materials during a specific period in an area is made possible by MFA.…
Blog PostsBackground Life cycle assessment: a getting started guide Sustainability is widely debated; putting it into practice is harder. After an investigation, declarations and actions need to follow quickly…
UpdatesNews Introducing EPD training programs: we now provide Environmental Product Declaration (EPD) Training Programs of “Professional” and “Advanced.” Choose the one that best meets your requirements. Perform EPD…
AnnouncementsNews We are excited to announce the launch of our new Life Cycle Assessment (LCA) training programs. In addition to the popular “Basic” and “Advanced” LCA training programs,…
JobsSenior Administrative and Technical Assistant (Job ID: DSJOB2218) Important Note: To be considered for this position, a candidate must reside in Tochigi city, Japan, and possess complete Japanese…
Blog PostsAn In-Depth Look at the Relationships Between Circular Economy, Environment, Social, and Governance (ESG), and Recycling Technologies Transitioning to a circular economy will be critical to achieving a…
NewsNews DEISO offers 10+ services for Circular Economy (CE) and how to help for the transition to CE. Information about our CE services is now available at ce.dei.so.…
Blog PostsWhat Are Scope 3 Emissions, and How Can DEISO Assist Your Orgnization With Carbon Emissions of Scope 3? Scope 3 carbon emissions Scope 3 emissions are indirect carbon…
JobsCareers Job description The database engineer of this position is responsible for creating, implementing, updating, and working with database schema, importing, exporting, and integrating existing databases in desktop-based…
NewsNews Introducing DEISO’s Partnership & Business Collaboration Program We are pleased to introduce the Channel Partner Program of DEISO. At DEISO, we are open to partnerships with other…
NewsNews Advanced LCA capacity building: introducing the next-level training program and courses DEISO is pleased to introduce the next level in its Life Cycle Assessment (LCA) training programs…
NewsNews Life Cycle Assessment (LCA) capacity building: introducing the Basic Training Program and Courses DEISO is pleased to introduce the Life Cycle Assessment (LCA) Basic Training Program and…
JobsCareers DEISO is hiring a Software Engineer to join our team for software development. The successful candidate will develop environmental sustainability software in collaboration with a Database Engineer…
JobsCareers A position of an Administrative Assistant is open at DEISO LLC to support the administration work and management of the company. This position requires full Japanese proficiency…
Clear one of them, or search the whole journal instead.
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.
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.