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Scope 3 Category-Level Pre-Submission Audit | Categories 1–15 Review
Scope 3 Category-Level Pre-Submission Audit | Categories 1–15 Review
DEISO

This engagement is limited to independent technical review and defensibility assessment of the Scope 3 reporting framework across upstream and downstream categories (1–15) already established by your organization. Operational inventory development, supplier data collection, downstream lifecycle modeling, or calculation execution—where required—are contracted separately and are not performed on the Scope 3 structure subject to this independent review.

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998 638 DEISO
Industrial Carbon Readiness Assurance Program | Scope 1–3 & PCF Governance
Industrial Carbon Readiness Assurance Program | Scope 1–3 & PCF Governance
DEISO

This program does not include preparation of carbon inventories, Scope 1–3 calculations, or PCF studies.DEISO independently reviews and stress-tests the carbon reporting framework and documentation you have already developed.

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998 548 DEISO
LCA Critical Review (ISO 14040 / ISO 14044) — Independent Technical Assessment
LCA Critical Review (ISO 14040 / ISO 14044) — Independent Technical Assessment
DEISO

This engagement covers only the independent critical review and pre-submission audit of your existing Life Cycle Assessment study.Where DEISO provides LCA modeling services, such services are contracted separately and are never performed on the study subject to critical review. Life Cycle Assessment study is prepared and requires independent critical review prior to publication, comparative claims, or submission: Request a Confidential LCA Scope Review A structured scoping discussion determines: Review objective and decision context Study complexity and required review depth Documentation…

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998 665 DEISO
AI Strategic Advisory for Sustainability & Research Architecture
AI Strategic Advisory for Sustainability & Research Architecture
DEISO

Advisory at the systems architecture level — not coding execution, not freelance AI development, and not generic automation services. We design AI frameworks that integrate environmental science, data governance, compliance-ready reporting logic, and computational architecture into coherent enterprise systems. Why AI for Sustainability — Now Carbon reporting complexity is increasing. Scope 3 modeling is expanding. Product carbon footprints are becoming procurement requirements. ESG analytics demand traceable data architecture. Research institutions face pressure to develop AI-enabled methodologies within funded project timelines.…

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998 665 DEISO
EPD Pre-Submission Audit & Review Services
EPD Pre-Submission Audit & Review Services
DEISO

To preserve independence, DEISO performs pre-submission audit and critical review engagements only and does not prepare the Environmental Product Declaration or the underlying Life Cycle Assessment subject to review. Life Cycle Assessment consistency reviewIndicator accuracy and completeness checksBoundary and allocation validationMulti-product EPD documentation auditEngagements may apply to new EPD drafts, renewals, or revisions prior to formal submission.EPD Pre-Submission AuditThe Pre-Submission Audit is designed to identify gaps, inconsistencies, and non-conformities before the EPD is submitted to a program operator for official…

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998 665 DEISO
GHG Emissions Audit & Review (Scope 1–3)
GHG Emissions Audit & Review (Scope 1–3)
DEISO

To preserve independence, DEISO performs audit or review engagements only and does not prepare the report subject to assurance.

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998 665 DEISO
Independent ESG Audit & Review Services
Independent ESG Audit & Review Services
DEISO

To preserve independence, DEISO performs audit or review engagements only and does not prepare the report subject to assurance.

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1024 1024 DEISO
Sustainability Expert Support | ESG, Climate, Risk & Environmental Governance
Sustainability Expert Support | ESG, Climate, Risk & Environmental Governance
DEISO

This service provides structured sustainability direction and oversight. Implementation and full project execution are available under separate engagements. advisory across core sustainability governance disciplines.Each advisory cluster reflects a defined strategic domain.You engage DEISO for governance-level reinforcement, regulatory readiness, defensibility logic, and structured strategic direction — not junior-level consulting.ADVISORY CLUSTERSCluster 1 — ESG Consulting & Reporting GovernanceScope includes:ESG strategy architecture and operating model designSustainability governance framework structuringLife Cycle Assessment (S-LCA) governance integrationSupply chain social risk structuringHuman rights and community impact exposure…

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768 768 DEISO
EPD Development Mistakes That Delay Verification (And How to Avoid Rework)
Blog Posts
EPD Development Mistakes That Delay Verification (And How to Avoid Rework)
DEISO

Environmental Product Declaration errorsPCR interpretation riskmulti-site advisory if:Your product system has multiple co-productsYou operate across multiple production sitesYou are preparing for EU construction marketsYou lack internal LCA governance expertiseYou have experienced verification delays previouslyEPD execution without a governance structure increases exposure to:Tender disqualificationPublication delaysCredibility erosionInternal resource wasteRequest an EPD Scoping ReviewBefore investing in full modeling, many organizations benefit from a structured EPD scoping review.This includes:PCR interpretation validationAllocation risk assessmentMulti-site modeling strategyData quality gap evaluationVerification readiness reviewEPD Verification Readiness FrameworkThis infographic…

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Indicate whether your request is related to a real project or organizational need.

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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.

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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.

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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Engineering the Future of Sustainable Performance

Execute Sustainability Projects
Full technical responsibility for LCA, Scope 3, PCF, and EPD execution under real-world conditions.
Initiate Technical Audit
Identify data gaps, inconsistencies, and risks before submission or verification.
Start Rapid Review (48–72h)
Stabilize time-sensitive sustainability work and reduce technical risk under tight deadlines.
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Structured execution aligned with regulatory, disclosure, and standards requirements.
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Integrated sustainability systems combining execution, intelligence, and digital infrastructure.
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Full portfolio across LCA, GHG, ESG, PCF, EPD, and technical validation.
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