Enterprise GHG Accounting (Scope 1, 2 & 3) – Audit-Ready, Decision-Grade Emissions Intelligence

Organizations today are under increasing pressure to deliver accurate, defensible, and audit-ready greenhouse gas (GHG) inventories aligned with global frameworks such as the GHG Protocol, ISO standards, and regulatory disclosure requirements.
However, most internal carbon accounting efforts fail due to data gaps, inconsistent methodologies, and weak Scope 3 assumptions—leading to unreliable disclosures, rejected submissions, and reputational risk.

The Problem: Why Most GHG Inventories Fail

• Incomplete Scope 3 data and reliance on unvalidated emission factors
• Inconsistent boundary definitions and double counting risks
• Lack of documentation required for third-party verification
• Misalignment with GHG Protocol Corporate Standard and ISO frameworks
• Limited internal capacity to validate supplier and activity data

DEISO Approach: Technical Audit & Pre-Verification Readiness

DEISO delivers independent, technical GHG accounting services focused on building high-confidence, verification-ready emissions inventories.
Our role is not certification—we act as a technical audit and review partner, ensuring your data, assumptions, and calculations are robust before submission to external verifiers or stakeholders.

Scope Coverage

• Scope 1: Direct emissions from owned or controlled sources
• Scope 2: Indirect emissions from purchased electricity, steam, heating, and cooling
• Scope 3: Full value chain emissions (Categories 1–15), including supplier data validation and proxy modeling

What You Receive (Deliverables)

• Structured GHG inventory aligned with GHG Protocol and ISO principles
• Scope 3 category-level data validation and completeness assessment
• Emission factor verification and methodological consistency checks
• Gap analysis and risk flags for audit and verification readiness
• Clear documentation trail to support third-party verification

Where This Service Delivers Value

• Corporate sustainability and ESG disclosures
• Scope 3 reporting and supplier engagement strategies
• Investor-grade carbon reporting and risk management
• Preparation for third-party verification or assurance
• Internal decision-making for decarbonization planning

Why DEISO

DEISO combines deep LCA expertise, advanced data validation methodologies, and enterprise-level sustainability intelligence to deliver GHG inventories that go beyond reporting—enabling credible, decision-grade emissions insights.
Our approach ensures your organization is not only compliant, but strategically positioned for procurement, investment, and regulatory scrutiny.