GHG Emissions Inventory Management

Organisational & Operational Boundary Design

Defining the right boundaries is essential for a credible and compliant GHG inventory. We work with clients to establish organisational and operational boundaries based on ownership structure, financial control, and joint venture arrangements. Our approach aligns with recognised standards including the GHG Protocol, ISO 14064-1, SECR, and CSRD –  ensuring your inventory reflects the realities of your organisation while meeting reporting and assurance requirements.
 

Our boundary-setting services include:

 
• Organisational boundary definition using equity share or control-based approaches.
• Operational boundary design to determine which activities and emissions sources are included.
• Treatment of joint ventures and shared assets in line with reporting standards.
• Alignment with GHG Protocol, ISO 14064-1, SECR, and CSRD for consistency and compliance.
• Documentation of boundary decisions to support transparency and audit readiness.
• Customisation for complex structures, including multi-entity groups and international operations.

Emissions Source Mapping & Scope Coverage

We create a detailed emissions source map across your value chain, categorising activities across Scope 1 (direct), Scope 2 (energy-related), and Scope 3 (indirect) emissions. Our mapping is tailored to your sector, operational structure, and disclosure requirements, ensuring comprehensive and relevant coverage. We also support progressive Scope 3 expansion, helping organisations account for complex categories such as capital goods, use of sold products, investments, and downstream distribution. This enables a more complete understanding of climate impact and supports credible reporting and reduction planning.
 
Our services include:
 

• Detailed source mapping across operations, supply chains, and product lifecycles.
• Categorisation of emissions into Scope 1, 2, and 3 in line with GHG Protocol guidance, alongside sector-specific mapping to reflect industry norms and regulatory expectations.
• Progressive Scope 3 expansion, including capital goods and infrastructure, use of sold products, investments and financial activities, and downstream logistics and distribution
• Support for disclosure frameworks, including SECR, CSRD, and ISO 14064-1.
• Visual tools and documentation to aid internal understanding and external reporting.

Inventory System Architecture

We design modular inventory frameworks that support reliable, scalable, and auditable GHG data management. Our systems include emission factor libraries, data management protocols, source tracking mechanisms, and documentation templates, all tailored to your organisational structure and reporting needs. Whether you’re managing a single entity or a complex multi-entity group, our architecture ensures consistency, transparency, and readiness for internal review or external assurance.
 
Our architecture includes:

 
• Modular framework design to support evolving data needs and reporting requirements.
• Custom emission factor libraries aligned with recognised sources (e.g. DEFRA, GHG Protocol).
• Data management protocols for collection, validation, and version control.
• Source tracking tools to maintain traceability across scopes and categories.
• Documentation templates to support audit readiness and stakeholder communication.
• Tailored configurations for single-entity or multi-entity inventory rollups.

Data Governance & QA/QC Protocols

We establish robust data governance frameworks to ensure the integrity, reliability, and auditability of your GHG emissions inventory. Our systems incorporate quality assurance and quality control (QA/QC) protocols, verification-ready audit trails, and version control mechanisms, all designed to meet ISO 14064-3 standards and prepare your organisation for third-party assurance. This foundation supports confident reporting, risk management, and continuous improvement.
 
Our governance and QA/QC services include:

 
• Internal control frameworks to manage data accuracy, completeness, and consistency.
• QA/QC protocols for systematic review, validation, and error detection.
• Audit trail creation to ensure traceability of data sources, calculations, and decisions.
• Version control systems to manage updates and maintain historical records.
• Alignment with ISO 14064-3 to support verification and assurance readiness.
• Training and guidance to embed good data practices across teams and functions.

ESG & Financial System Integration

We integrate your GHG emissions inventory with wider sustainability and financial reporting systems, ensuring climate data informs strategic decision-making across your organisation. Our approach aligns with frameworks such as CSRD, SECR, CDP, and internal ESG dashboards — enabling seamless data flow into procurement, finance, and asset management functions. This integration supports joined-up reporting, enhances transparency, and strengthens the link between carbon performance and business value.
 
Our integration services include:

 
• Alignment with ESG and financial reporting frameworks, including CSRD, SECR, CDP, and internal dashboards.
• System architecture design to enable data sharing across sustainability, finance, and operational platforms.
• Integration of emissions data into procurement, budgeting, and asset management workflows.
• Support for cross-functional reporting, including board-level and investor disclosures.
• Custom APIs and data connectors for automated updates and reduced manual handling.
• Governance frameworks to ensure consistency, traceability, and accountability across systems.

Inventory Rollups for Multi-Entity Groups

For organisations with multiple subsidiaries, business units, or geographic locations, we offer consolidated carbon footprinting through multi-entity rollups. By aggregating GHG data across entities, we deliver a group-level footprint that supports corporate reporting, target setting, and strategic oversight. Our approach ensures consistency across data sources while maintaining traceability back to individual units — enabling both high-level insights and granular accountability.
 
Our rollup services include:

 
• Aggregation of GHG data across subsidiaries, sites, or operational units.
• Consolidated footprint reporting for group-level disclosures and strategy.
• Standardised methodologies to ensure consistency across entities.
• Traceable data structures to support auditability and local accountability.
• Support for corporate reporting frameworks, including SECR, CSRD, and Net Zero plans.
• Flexible rollup configurations to reflect organisational structure and reporting needs.

Inventory Reviews, Updates & Restatements

We provide annual review services to ensure your GHG emissions inventory remains accurate, relevant, and aligned with evolving organisational and regulatory contexts. Our process accounts for operational changes, acquisitions, divestments, and updates to calculation methodologies, maintaining consistency and traceability over time. Whether you’re preparing for assurance, refreshing disclosures, or responding to internal changes, we help you manage inventory updates with confidence.
 
Our review and update services include:

 
• Annual inventory reviews to validate data accuracy and completeness.
• Adjustments for operational changes, including acquisitions, divestments, and restructuring.
• Methodology updates to reflect new emissions factors, guidance, or reporting standards.
• Restatement protocols to ensure transparency and traceability of historical changes.
• Version control and documentation to support audit readiness and stakeholder confidence.
• Support for assurance and disclosure alignment, including SECR, CSRD, and ISO 14064-1.