GHG Emissions Inventory & Accounting Services

As a trusted greenhouse gas (GHG) inventory services provider, SG Analytics (SGA) helps organizations develop accurate, audit-ready GHG inventories aligned with the GHG Protocol. Our GHG inventory consulting services cover Scope 1, 2, and 3 emissions calculation, enabling corporate carbon accounting, carbon footprint assessment, stronger disclosures, and readiness for evolving climate regulations.

What Is GHG Emissions Inventory & Accounting?

A GHG emissions inventory is a structured process for measuring, tracking, and reporting an organization’s GHG emissions across Scope 1 (direct), Scope 2 (purchased energy), and Scope 3 (value chain) activities, in alignment with the GHG Protocol Corporate Standard. It provides a standardized, audit-ready view of emissions, enabling organizations to quantify their environmental impact and meet regulatory and stakeholder expectations.

GHG emissions accounting refers to the methodologies and tools used to calculate emissions from various sources – such as fuel consumption, electricity use, and supply chain activities – ensuring consistency, transparency, and comparability across reporting periods and frameworks.

Why It Matters

  • Establishes a baseline for decarbonization and net-zero strategies
  • Supports regulatory compliance and disclosures (e.g., IFRS, CSRD, TCFD)
  • Enables data-driven ESG decision-making and risk management
  • Enhances credibility with investors, customers, and regulators

How It Works

GHG accounting involves:

  1. Data Collection: Gathering activity data (energy use, travel, procurement, etc.)
  2. Emission Calculation: Applying emission factors to convert activity data into CO₂e
  3. Classification: Categorizing emissions under Scope 1, 2, and 3
  4. Reporting & Assurance: Creating disclosure-ready, auditable outputs

SGA Approach

We combine domain expertise with AI-enabled tools to deliver accurate, scalable, and audit-ready GHG emissions accounting services and GHG inventory services, including:

  • End-to-end Scope 1, 2, and 3 emissions calculation
  • Automated data capture and validation
  • Alignment with global standards and reporting frameworks
  • Integration into ESG data systems for continuous monitoring

This structured approach ensures organizations not only measure emissions effectively but also translate insights into actionable climate strategies.

Why GHG Accounting Is the Foundation of Net-Zero Strategy

A credible GHG inventory is the starting point for any decarbonization and net-zero strategy – you cannot reduce what you do not measure. It establishes a verified emissions baseline across Scope 1, 2, and 3, enabling informed climate action.

  • Enables SBTi Targets: Requires accurate baseline emissions and hotspot identification
  • Supports Disclosures: Drives consistent reporting for CDP, CSRD/ESRS, and SEC requirements
  • Guides Decarbonization: Identifies emission hotspots and prioritizes high-impact reduction initiatives
  • Builds Credibility: Ensures audit-ready, transparent data for investors and regulators

In short, GHG emissions computation turns climate ambition into a measurable, actionable strategy.

From Reporting Burden to Strategic Insight

Shift narrative: GHG accounting is no longer just compliance, it surfaces operational inefficiencies, supplier risks, and cost-saving opportunities. Position SG Analytics as turning the inventory into a decision-making tool.

Carbon footprint assessment or GHG emissions computation is no longer just a compliance exercise; it is a powerful decision-making tool. A well-built GHG emissions inventory reveals operational inefficiencies, energy risks, and cost-saving opportunities across the value chain, turning data into actionable insight.

At SGA, we go beyond reporting by transforming GHG data into strategic intelligence, helping organizations identify emission hotspots, optimize operations, engage suppliers, and prioritize high-impact decarbonization initiatives.

The result: GHG accounting that doesn’t just meet requirements but also supports smarter, long-term business strategy.

The Evolution of GHG Inventory Reporting

GHG inventory reporting has evolved from voluntary disclosures in the late 1990s (e.g., CDP) to standardized frameworks such as the GHG Protocol Corporate Standard (2001) and ISO 14064, which brought consistency to emissions measurement. Post 2015, the focus expanded to Scope 3 emissions, reflecting full value chain impact. Today, reporting is gradually becoming mandatory, driven by regulations such as CSRD, SEC climate rules, California SB 253, and India’s BRSR Core.

SGA has evolved alongside these shifts by combining deep domain expertise with AI-driven automation to streamline data ingestion, map emission factors, and deliver audit-ready, decision-grade GHG inventories.

Why a Robust GHG Inventory Matters for Modern Enterprises

A robust GHG inventory goes beyond emissions tracking; it unlocks performance, ensures compliance, and builds stakeholder trust. It provides reliable, decision-grade data to navigate regulations, optimize operations, and demonstrate credible climate action.

GHG Accounting Across Industries

GHG accounting requirements vary significantly across industries, driven by distinct emission profiles, regulatory pressures, and value chain complexities. From financed emissions in financial services to energy-intensive operations in manufacturing and Scope 3-heavy models in consumer sectors, each industry requires a tailored approach to emissions measurement and management. At SGA, we apply sector-specific methodologies and data models to ensure GHG inventories accurately reflect real-world business operations, enabling organizations to move beyond compliance and drive targeted, high-impact decarbonization strategies aligned to industry dynamics.

Financial Services & Asset Managers (PCAF/Financed Emissions)

For financial institutions, the majority of emissions are financed emissions rather than operational. We apply Partnership for Carbon Accounting Financials (PCAF) methodology to measure emissions across asset classes – such as listed equity, debt, and project finance – using attribution factors and data quality scoring. This enables institutions to align portfolios with net-zero commitments, regulatory disclosures, and investor expectations.

Manufacturing & Industrial Sectors

Manufacturing organizations face complex Scope 1 and Scope 2 emissions, driven by energy-intensive processes and industrial activities. We capture process emissions, fuel combustion, and heat/steam usage, while also addressing upstream supply chain impacts. Our approach helps identify efficiency levers, fuel-switching opportunities, and decarbonization pathways in high-emission operations.

Real Estate & Infrastructure

GHG accounting in the real estate and infrastructure sector focuses on operational emissions (energy use across assets) and embodied carbon in construction materials. A key challenge is tenant data availability and split incentives. We enable structured data collection, portfolio-level insights, and alignment with frameworks such as GRESB and regulatory reporting requirements, supporting asset-level and portfolio decarbonization.

Technology, SaaS, and Data Centers

For technology and digital businesses, emissions are significantly concentrated in Scope 2 (electricity consumption) – especially for data centers and cloud infrastructure. We assess emissions using Power Usage Effectiveness (PUE), renewable energy sourcing (RECs/PPAs), and evolving cloud accounting methodologies. This supports alignment with RE100 commitments and low-carbon infrastructure strategies.

Consumer Goods and Retail

In the consumer goods and retail sector, Scope 3 emissions dominate, particularly from purchased goods, logistics, and product use. We enable organizations to measure and manage value chain emissions, engage suppliers, and develop product-level carbon footprints. This supports sustainable sourcing, eco-design, and compliance with growing consumer and retailer expectations.

Regulatory & Reporting Frameworks Supported

SGA builds GHG inventories aligned with all major global frameworks, enabling organizations to meet multi-jurisdictional disclosure requirements while maintaining consistency, auditability, and efficiency across reporting standards.

GHG Protocol Corporate Standard and Scope 3 Standard

We develop inventories fully aligned with the GHG Protocol, covering Scope 1, 2, and all 15 Scope 3 categories. Our approach ensures complete value chain accounting, standardized methodologies, and seamless integration into global disclosures.

ISO 14064-1 (Quantification & Reporting)

We structure GHG inventories in accordance with ISO 14064-1 requirements, ensuring transparent quantification, documentation, and reporting. This enables organizations to achieve verification-ready, internationally recognized emissions reporting.

CDP Climate Change Disclosure

We support end-to-end CDP reporting, including emissions data population, methodology alignment, and narrative disclosures. Our inventories are designed to improve CDP scores through accuracy, completeness, and consistency.

CSRD/ESRS E1 (EU Climate Disclosures)

We enable compliance with CSRD and ESRS E1, delivering audit-ready emissions data, double materiality alignment, and structured disclosures. Our approach ensures readiness for limited and reasonable assurance requirements.

SEC Climate Disclosure Rule (US)

We prepare organizations for SEC climate disclosures by building traceable, governance-aligned GHG inventories. This includes Scope 1 and 2 reporting and controls required for financial-grade climate disclosure.

BRSR Core (India)

We support BRSR and BRSR Core reporting, ensuring accurate emissions disclosure aligned with Indian regulatory requirements. Our inventories enable assurance-ready ESG reporting for listed entities.

TCFD/ISSB IFRS S2

We integrate GHG inventories into TCFD and ISSB (IFRS S2) disclosures, supporting climate risk, metrics, and targets reporting. This ensures investor-grade, globally consistent climate disclosures.

SBTi, Inventory as Target-Setting Baseline

We use GHG inventories as the foundation for SBTi-aligned target setting, ensuring emissions baselines are accurate, complete, and validation-ready. This enables credible near-term and net-zero commitments backed by robust data.

Our GHG Inventory Engagement Process

We follow a structured, five-step engagement model designed to transform fragmented emissions data into a credible, audit-ready GHG inventory and decision-making tool. This approach mirrors leading practice workflows and ensures consistency across industries, geographies, and reporting frameworks.

Scoping, Boundary Setting, and Materiality

We begin by defining organizational and operational boundaries in line with the GHG Protocol, selecting the appropriate consolidation approach (equity share, operational control, or financial control). At this stage, we also identify material emission sources and Scope 3 categories relevant to the client’s industry, ensuring effort is focused on high-impact areas.

  • Organizational structure mapping (subsidiaries, JVs, assets)
  • Boundary definition aligned with financial reporting
  • Materiality-led prioritization of emission categories
Activity Data Collection & Validation

We design and deploy structured data collection frameworks, supported by stakeholder workshops and standardized templates. This ensures consistent and scalable capture of activity data across functions and geographies. We validate inputs through source verification and cross-checks, identifying data gaps and inconsistencies early in the process.

  • Workshops with operations, finance, procurement, and ESG teams
  • Template-based data collection (energy, fuel, supplier, logistics data)
  • Gap identification and data quality assessment
Emission Factor Mapping & Computation

We map activity data to the most relevant GHG Protocol-aligned emission factors, applying globally recognized datasets (IPCC, DEFRA, EPA, IEA) with localization wherever required. Emissions are calculated across Scope 1, Scope 2 (location- & market-based), and all 15 Scope 3 categories, ensuring complete coverage and methodological transparency.

  • Automated emission factor mapping and updates
  • Calculation engines for multi-scope emissions
  • Documentation of assumptions and methodologies
Quality Assurance and Verification Readiness

We embed multi-layered quality assurance checks to ensure data accuracy, consistency, and auditability. This includes validation of calculations, reconciliation with financial/operational data, and review of assumptions. We then prepare verifier-ready documentation in line with ISO 14064-3, ensuring smooth third-party assurance.

  • Internal QA reviews and reconciliation checks
  • Data lineage, audit trails, and calculation logs
  • Alignment with limited and reasonable assurance requirements
Reporting, Dashboards, and Disclosure Support

The final step transforms the inventory into decision-grade outputs and regulatory disclosures. We provide framework-aligned reporting and interactive dashboards for leadership teams. We also support base year establishment, recalculation policies, and ongoing tracking, enabling year-on-year performance monitoring.

  • Multi-framework reporting (CDP, CSRD/ESRS, BRSR, IFRS S2)
  • Executive dashboards and KPI tracking
  • Base year definition and longitudinal emissions tracking
Scoping, Boundary Setting, and Materiality

We begin by defining organizational and operational boundaries in line with the GHG Protocol, selecting the appropriate consolidation approach (equity share, operational control, or financial control). At this stage, we also identify material emission sources and Scope 3 categories relevant to the client’s industry, ensuring effort is focused on high-impact areas.

  • Organizational structure mapping (subsidiaries, JVs, assets)
  • Boundary definition aligned with financial reporting
  • Materiality-led prioritization of emission categories
Activity Data Collection & Validation

We design and deploy structured data collection frameworks, supported by stakeholder workshops and standardized templates. This ensures consistent and scalable capture of activity data across functions and geographies. We validate inputs through source verification and cross-checks, identifying data gaps and inconsistencies early in the process.

  • Workshops with operations, finance, procurement, and ESG teams
  • Template-based data collection (energy, fuel, supplier, logistics data)
  • Gap identification and data quality assessment
Emission Factor Mapping & Computation

We map activity data to the most relevant GHG Protocol-aligned emission factors, applying globally recognized datasets (IPCC, DEFRA, EPA, IEA) with localization wherever required. Emissions are calculated across Scope 1, Scope 2 (location- & market-based), and all 15 Scope 3 categories, ensuring complete coverage and methodological transparency.

  • Automated emission factor mapping and updates
  • Calculation engines for multi-scope emissions
  • Documentation of assumptions and methodologies
Quality Assurance and Verification Readiness

We embed multi-layered quality assurance checks to ensure data accuracy, consistency, and auditability. This includes validation of calculations, reconciliation with financial/operational data, and review of assumptions. We then prepare verifier-ready documentation in line with ISO 14064-3, ensuring smooth third-party assurance.

  • Internal QA reviews and reconciliation checks
  • Data lineage, audit trails, and calculation logs
  • Alignment with limited and reasonable assurance requirements
Reporting, Dashboards, and Disclosure Support

The final step transforms the inventory into decision-grade outputs and regulatory disclosures. We provide framework-aligned reporting and interactive dashboards for leadership teams. We also support base year establishment, recalculation policies, and ongoing tracking, enabling year-on-year performance monitoring.

  • Multi-framework reporting (CDP, CSRD/ESRS, BRSR, IFRS S2)
  • Executive dashboards and KPI tracking
  • Base year definition and longitudinal emissions tracking

Why Choose SGA for GHG Inventory Services?

SGA combines deep ESG domain expertise, advanced technology, and global delivery capability to deliver accurate, scalable, and audit-ready GHG inventories. We go beyond compliance to provide decision-grade insights, enabling organizations to confidently navigate regulations, disclosures, and decarbonization strategies.
GHG Protocol-Certified ESG Practitioners

Our team comprises experienced ESG and sustainability specialists with strong grounding in GHG Protocol and ISO standards, ensuring every inventory is methodologically sound and aligned with global best practices.

  • Expertise across Scope 1, 2, and full Scope 3 value chain accounting
  • Proven experience in SBTi, CDP, CSRD, and IFRS-aligned disclosures
  • Strong understanding of industry-specific emission drivers and methodologies
Proprietary Emission Factor Database & Automation Tools

We combine curated emission factor libraries with AI-driven automation tools to deliver high-precision, scalable GHG accounting. Our technology ensures faster data processing, reduced manual effort, and improved accuracy.

  • Integrated databases (IPCC, DEFRA, EPA, IEA) with version control and updates
  • AI-enabled data ingestion and emission factor mapping
  • Automated calculations with traceable, audit-ready outputs
Multi-Geography, Multi-Framework Experience

We support organizations operating across multiple geographies and regulatory environments, enabling consistent reporting across diverse frameworks.

  • Experience across CSRD/ESRS, SEC, BRSR, CDP, and IFRS S2
  • Localization for regional emission factors and regulatory requirements
  • Delivery models that ensure global consistency with local relevance
Trusted by Global Corporates, Asset Managers, and Financial Institutions

SGA is a trusted partner to leading global enterprises, delivering scalable ESG and GHG inventory consulting across industries and asset classes.

  • Proven track record with corporates, asset managers, and financial institutions
  • Ability to handle complex, multi-entity and multi-value chain inventories
  • Focus on delivering measurable outcomes – compliance, transparency, and decarbonization impact

GHG Protocol-Certified ESG Practitioners

Our team comprises experienced ESG and sustainability specialists with strong grounding in GHG Protocol and ISO standards, ensuring every inventory is methodologically sound and aligned with global best practices.

  • Expertise across Scope 1, 2, and full Scope 3 value chain accounting
  • Proven experience in SBTi, CDP, CSRD, and IFRS-aligned disclosures
  • Strong understanding of industry-specific emission drivers and methodologies

Proprietary Emission Factor Database & Automation Tools

We combine curated emission factor libraries with AI-driven automation tools to deliver high-precision, scalable GHG accounting. Our technology ensures faster data processing, reduced manual effort, and improved accuracy.

  • Integrated databases (IPCC, DEFRA, EPA, IEA) with version control and updates
  • AI-enabled data ingestion and emission factor mapping
  • Automated calculations with traceable, audit-ready outputs

Multi-Geography, Multi-Framework Experience

We support organizations operating across multiple geographies and regulatory environments, enabling consistent reporting across diverse frameworks.

  • Experience across CSRD/ESRS, SEC, BRSR, CDP, and IFRS S2
  • Localization for regional emission factors and regulatory requirements
  • Delivery models that ensure global consistency with local relevance

Trusted by Global Corporates, Asset Managers, and Financial Institutions

SGA is a trusted partner to leading global enterprises, delivering scalable ESG and GHG inventory consulting across industries and asset classes.

  • Proven track record with corporates, asset managers, and financial institutions
  • Ability to handle complex, multi-entity and multi-value chain inventories
  • Focus on delivering measurable outcomes – compliance, transparency, and decarbonization impact

Industries & Clients We Serve

Organizations across industries face distinct emissions profiles, regulatory pressures, and value chain complexities, making a one-size-fits-all approach to GHG accounting ineffective. From financed emissions in financial services to operational and process emissions in heavy industries and Scope 3-driven models in consumer sectors, each segment requires a tailored, sector-specific lens. At SGA, we bring cross-industry expertise and scalable delivery models to address these variations, helping corporates, financial institutions, and asset-heavy sectors build accurate, audit-ready GHG inventories. Our approach ensures organizations not only meet compliance requirements but also unlock industry-relevant insights to drive targeted decarbonization and long-term value creation.

We support large, multi-entity organizations in building enterprise-wide GHG inventories across geographies, business units, and complex value chains. Our approach ensures standardized data, regulatory compliance, and board-level visibility, enabling corporates to align emissions reporting with global frameworks, net-zero commitments, and ESG disclosures.

For financial institutions, we deliver PCAF-aligned financed emissions accounting across diverse asset classes. We help quantify portfolio-level emissions, apply attribution methodologies, and integrate results into risk management, regulatory reporting, and net-zero portfolio strategies, supporting investor transparency and climate alignment.

We assist private equity firms in assessing and managing portfolio-wide emissions, enabling consistent ESG reporting across investee companies. Our solutions support pre-investment diligence, post-investment value creation, and exit readiness, while helping portfolio companies build scalable, audit-ready GHG inventories.

We work with emissions-intensive sectors to capture process emissions, fuel combustion, and energy usage across operations and supply chains. Our approach identifies efficiency improvements, decarbonization levers, and transition pathways, enabling organizations to reduce carbon intensity while maintaining operational performance.

We support real estate and infrastructure clients in managing asset-level and portfolio-wide emissions, including operational energy use and embodied carbon. We address challenges such as tenant data gaps and multi-asset reporting, delivering insights for sustainable asset management, regulatory compliance, and long-term decarbonization planning.

Corporates and Multinationals

We support large, multi-entity organizations in building enterprise-wide GHG inventories across geographies, business units, and complex value chains. Our approach ensures standardized data, regulatory compliance, and board-level visibility, enabling corporates to align emissions reporting with global frameworks, net-zero commitments, and ESG disclosures.

Asset Managers, Banks, and Insurers (PCAF/Financed Emissions)

For financial institutions, we deliver PCAF-aligned financed emissions accounting across diverse asset classes. We help quantify portfolio-level emissions, apply attribution methodologies, and integrate results into risk management, regulatory reporting, and net-zero portfolio strategies, supporting investor transparency and climate alignment.

Private Equity and Portfolio Companies

We assist private equity firms in assessing and managing portfolio-wide emissions, enabling consistent ESG reporting across investee companies. Our solutions support pre-investment diligence, post-investment value creation, and exit readiness, while helping portfolio companies build scalable, audit-ready GHG inventories.

Manufacturing, Industrials, and Energy

We work with emissions-intensive sectors to capture process emissions, fuel combustion, and energy usage across operations and supply chains. Our approach identifies efficiency improvements, decarbonization levers, and transition pathways, enabling organizations to reduce carbon intensity while maintaining operational performance.

Real Estate and Infrastructure

We support real estate and infrastructure clients in managing asset-level and portfolio-wide emissions, including operational energy use and embodied carbon. We address challenges such as tenant data gaps and multi-asset reporting, delivering insights for sustainable asset management, regulatory compliance, and long-term decarbonization planning.

Insights

FAQs: GHG Emissions Inventory & Accounting

What is a GHG emissions inventory and why is it important?

A GHG emissions inventory is a structured measurement and reporting of an organization’s emissions across Scope 1, 2, and 3, aligned with global standards such as the GHG Protocol. It is important because it provides a baseline for decarbonization, ensures regulatory compliance, and builds stakeholder trust through transparent, auditable data.

What is the difference between Scope 1, Scope 2, and Scope 3 emissions?

Scope 1: Direct emissions from owned or controlled sources (e.g., fuel combustion, company vehicles)
Scope 2: Indirect emissions from purchased electricity, steam, heating, or cooling
Scope 3: All other indirect emissions across the value chain (suppliers, logistics, product use, etc.)

What are the 15 categories of Scope 3 emissions?

Scope 3 emissions are grouped into 15 categories across:
Upstream: Purchased goods, capital goods, fuel & energy, transport, waste, business travel, commuting, leased assets
Downstream: Distribution, processing, use of products, end-of-life, leased assets, franchises, investments

How is GHG accounting different from carbon footprinting?

GHG accounting is a comprehensive, standards-based process covering all emission scopes and designed for disclosures and assurance.
Carbon footprinting is typically narrower, often focused on a product, activity, or organization snapshot without full compliance or audit requirements.

Which framework should we follow, GHG Protocol or ISO 14064?

Both are widely accepted and complementary:
GHG Protocol is the most commonly used framework for emissions classification and reporting
ISO 14064 provides structured guidance for quantification, documentation, and verification
Most organizations use GHG Protocol for accounting and ISO for assurance alignment.

How long does it take to build a complete GHG inventory?

Timelines depend on scope and data availability:
Scope 1 & 2 Only: ~4–8 weeks
Full Scope 1, 2, & 3 Inventory: ~8–16+ weeks
Timelines may extend for complex global organizations with multiple entities and value chains.

What is the difference between location-based and market-based Scope 2?

Location-based uses average grid emission factors where energy is consumed, whereas market-based reflects contractual instruments such as RECs or PPAs.
 Organizations often report both to provide a transparent view of energy sourcing and emissions impact.

How do you handle data gaps in Scope 3 emissions?

Data gaps are addressed using estimation methods aligned with the GHG Protocol, including:
Spend-based models for initial estimates
Industry-average data where primary data is unavailable
Progressive transition to supplier-specific data for accuracy improvement

Is third-party verification of a GHG inventory mandatory?

Verification is not always mandatory, but it is required under regulations such as CSRD and certain ESG disclosures, as provided under the guidelines. Even when optional, third-party assurance enhances credibility, investor confidence, and regulatory readiness.

How often should a GHG inventory be updated?

GHG inventories should be updated annually at a minimum to align with reporting cycles. Various organizations are also moving toward more frequent (quarterly or real-time) tracking to support ongoing decision-making and performance management.