GHG Emissions Assurance (Limited Assurance)

GHG assurance is an independent verification of GHG emissions data, providing confidence that reported emissions are materially correct and aligned with recognized standards such as the GHG Protocol. 

As organizations face increasing pressure to disclose greenhouse gas (GHG) emissions, stakeholders—including regulators, investors, customers, and supply chain partners—are placing greater scrutiny on the accuracy and credibility of reported data. Regulations such as California SB 253, the EU Corporate Sustainability Reporting Directive (CSRD), and evolving disclosure frameworks including International Financial Reporting Standard S2 (IFRS S2) and Carbon Disclosure Project (CDP) are increasing expectations for independently verified emissions information.

In addition to supporting compliance and helping organizations meet stakeholder and regulatory expectations, assurance can improve data quality, strengthen internal controls, and enhance the credibility of their disclosures. As climate reporting requirements and stakeholder expectations continue to evolve, third-party assurance is increasingly recognized as a best practice and, in some cases, a requirement for credible sustainability reporting.

Limited assurance provides a moderate level of confidence based on risk-based procedures and analytical review. Reasonable assurance (similar to a financial audit) involves more extensive testing and a higher level of assurance.  Most organizations begin with limited assurance.

Antea Group's assurance team is comprised of experienced GHG accounting and climate reporting professionals who understand how emissions inventories are developed, managed, and disclosed. That expertise allows us to efficiently identify high-risk areas, focus on material emissions sources, and deliver credible assurance conclusions.

Our approach is grounded in internationally recognized standards, including ISO 14064-3 and ISO/IEC 17029, and focuses on the emissions sources, calculations, and supporting documentation that matter most. Through a risk-based verification process, we provide independent confidence that reported emissions are materially correct and prepared in accordance with recognized reporting criteria.

To maintain strict independence and impartiality, Antea Group provides assurance only for GHG inventories that we did not prepare. This separation ensures an objective evaluation of emissions data, methodologies, and supporting documentation, helping organizations enhance confidence in their reported emissions and sustainability disclosures.

Our GHG limited assurance services provide an independent evaluation of reported emissions data, helping organizations increase confidence in their disclosures and demonstrate the credibility of their greenhouse gas reporting. 

• Independent limited assurance opinion on Scope 1 and Scope 2 GHG emissions  
• Risk-based verification of emissions data, methodologies, and supporting documentation  
• Verification findings, observations, and opportunities for future process improvement  
• Independent assurance statement suitable for sustainability reports, stakeholder communications, and disclosure frameworks  

GHG assurance is increasingly becoming an expectation rather than a differentiator. Common drivers include:  

• Sustainability and ESG reporting  
• CDP disclosures  
• Investor and customer requests  
• California climate disclosure requirements  
• CSRD and other regulatory reporting requirements  

Whether the need is driven by voluntary disclosure, customer requirements, investor scrutiny, or emerging regulations, Antea Group provides independent, ISO-aligned GHG assurance services that enhance the credibility, transparency, and reliability of reported emissions data.  

Contact our team to discuss your organization’s climate goals and how we can support your assurance or other GHG emissions and sustainability program needs.

Greenhouse Gas Inventories and Audit Readiness

Building complete, defensible Scope 1, 2, and 3 inventories aligned with the GHG Protocol and designed to support reporting, target-setting, and assurance activities. 

GHG Audit Readiness

Conducting a structured pre-assurance assessment to identify and address data, documentation, and process gaps before engaging a third-party verifier. 

Decarbonization and Emissions Reduction Roadmaps

Developing actionable strategies that translate emissions inventories and targets into prioritized emissions reduction initiatives. 

Corporate Sustainability Reporting and Disclosure Services

Preparing disclosures aligned with leading frameworks and regulations, including CDP, IFRS S2, CSRD, and emerging U.S. climate reporting requirements. 

Climate Related Risk Assessments

Evaluating physical and transition climate risks to support disclosures, strengthen resilience, and inform strategic decision-making.