Carbon Emissions Verification Under ISO 14064 and GHG Protocol

Quick Read

Speeki provides independent third-party verification of organisational greenhouse gas inventories under ISO 14064 and the GHG Protocol, confirming that Scope 1, 2 and 3 emissions are accurately calculated, appropriately bounded and transparently reported. The assurance process includes readiness assessments to identify documentation gaps, tailored training for teams across finance and sustainability functions, and formal verification engagements that ensure emissions governance, methodologies, controls and oversight meet international standards. This structured approach enables organisations to demonstrate credible, independently verified carbon data that meets investor, regulator and customer expectations.

Use case

How Speeki helps organisations verify and assure carbon emissions under ISO 14064 and the GHG Protocol

Effective governance of carbon and emissions-related activities is increasingly important for organisations across sectors. The GHG Protocol and ISO 14064 provide internationally recognised frameworks for quantifying, monitoring, reporting and verifying greenhouse gas emissions and removals.

Speeki provides independent third-party verification of organisational GHG inventories, confirming that Scope 1, 2 and 3 emissions are accurately calculated, appropriately bounded and reported transparently. Since 2020, Speeki has focused entirely on ESG and sustainability, providing the assurance stakeholders need to trust what companies report.

Why this matters

Organisations are expected to demonstrate how emissions information is governed, reviewed and maintained over time, not just reported quantitatively. Investors, regulators and customers increasingly require credible, independently verified carbon data to inform their decisions.

Without a structured approach, qualitative elements of carbon management – policies, methodologies, controls and oversight – are often spread across teams and documents, making consistency, oversight and audit preparation difficult.

What the GHG Protocol and ISO 14064 require

Together, the GHG Protocol and ISO 14064 set expectations for how organisations manage and document greenhouse gas activities. Key requirements include:

defined policies and governance for carbon and emissions management
documented methodologies, assumptions and boundaries
roles and responsibilities for data collection and oversight
internal controls supporting accuracy and consistency
evidence of review, monitoring and improvement
readiness for internal or external verification.

Meeting these expectations requires a clear and structured system backed by independent assurance.

How Speeki supports carbon verification under ISO 14064

Speeki provides end-to-end assurance services for carbon emissions verification under ISO 14064 and the GHG Protocol. This covers the full journey from initial assessment through verification and ongoing assurance.

Gap analysis and readiness assessment

Speeki conducts readiness assessments to review GHG inventory documentation for completeness, examine organisational boundary setting, test calculation accuracy through sample recalculations and identify methodology inconsistencies or data gaps that should be addressed before formal verification.

Training and capability building

Speeki delivers GHG accounting and verification readiness training covering greenhouse gas fundamentals, GHG accounting principles, organisational boundary setting, emission quantification methodologies, emission factor selection, uncertainty assessment and verification preparation. Training is tailored to different roles, from finance and data teams to sustainability teams and executives.

Verification engagements

Speeki provides independent verification of organisational GHG inventories under both limited and reasonable assurance levels. Verification includes document review, data testing, site visits where applicable, personnel interviews and recalculations. Speeki helps organisations understand which assurance level is appropriate based on regulatory requirements, stakeholder expectations and cost-benefit considerations.

Ongoing verification and continuous improvement

Most organisations require annual GHG verification. Speeki provides ongoing verification services that improve in efficiency over time as data management systems mature, methodologies stabilise and both the organisation and verifier develop a shared understanding of the emissions profile.

Ongoing Assurance Intelligence™

Every Speeki assurance engagement includes access to Assurance Intelligence™, which provides organisations with compounding value across assurance cycles. This includes year-to-year trend analysis to track maturity progression and recurring patterns, scenario-based outcomes for strategic planning and risk mitigation, and anonymised benchmarking to compare performance against peer organisations. Assurance Intelligence remains descriptive, predictive and scenario-based, with no advisory recommendations, preserving the independence of the assurance relationship.

Outcomes for organisations

Working with Speeki to verify and assure carbon emissions under ISO 14064 and the GHG Protocol helps organisations achieve:

a clear and independently verified carbon governance framework
consistent documentation of methodologies and controls
improved oversight of qualitative carbon information
smoother internal review and external verification processes
year-to-year intelligence that compounds value across assurance cycles
confidence in alignment with the GHG Protocol and ISO 14064.

About Speeki

Speeki is an independent assurance company helping organisations worldwide turn their compliance, sustainability and ESG initiatives into a competitive advantage.

Speeki combines subject-matter expertise and structured audit methodologies to deliver assurance engagements that support long-term governance maturity.

Want to discuss how Speeki can support your carbon governance and verification readiness?