Third-Party GHG Verification & Assurance

Scope 1, 2, and 3 GHG Emissions Verification

Our team of Accredited Lead GHG Verifiers, CPA, engineers, and scientists provides independent verification and limited or reasonable assurance of Scope 1, 2, and 3 GHG emissions in accordance with internationally recognized assurance standards such as ISO 14064-3 and AA1000AS. We assess emissions disclosures based on widely accepted reporting frameworks, including the GHG Protocol, ISO 14064-1, and GRESB, as well as regulatory requirements under programs such as the EU Corporate Sustainability Reporting Directive (CSRD) and California Senate Bill 253 (SB 253).

GHG Assurance for CDP Disclosure

KERAMIDA is a CDP Global Gold Verification Provider.

We provide third-party assurance of your company’s GHG emissions inventory to support your CDP disclosure. While not mandatory, CDP strongly encourages verification to enhance credibility and improve scoring. In addition to GHG emissions data, we also provide verification of water data for CDP disclosure.

AA1000AS v3 Assurance

KERAMIDA is an AA1000 Licensed Assurance Provider.

As a Licensed AA1000AS Assurance Provider, KERAMIDA can provide independent assurance of your company’s GHG emissions statement and verify its adherence to the AA1000 Accountability Principles.

GHG Assurance for Microsoft Suppliers

We provide Microsoft suppliers with third-party assurance of their company’s total and service-level GHG emissions, covering Scope 1, Scope 2, and Scope 3 categories 1 through 8, as required by Microsoft’s Procurement Sustainability Assurance Guidance.

GHG Assurance for GRESB Reporting

KERAMIDA supports real estate and infrastructure clients with third-party assurance of GHG emissions submitted to GRESB. We independently verify Scope 1, 2, and 3 GHG emissions to enhance the credibility of your report and improve scoring under GRESB’s “Data Coverage” and “Third-Party Review” indicators. We also verify energy, water, and waste data included in your GRESB disclosure. Our team is experienced in aligning with GRESB’s methodology and its preferred reporting frameworks, including the GHG Protocol and ISO 14064-1.


GHG Verification for California Mandatory GHG Reporting

KERAMIDA is a CARB-accredited Verification Body.

As a California Air Resources Board (CARB)-accredited verification body, KERAMIDA’s Accredited Lead GHG Verifiers perform verification services for GHG emissions data reports under the California mandatory GHG reporting rule.

GHG Assurance for CA SB 253

California SB 253 requires reporting entities to obtain assurance for their GHG emissions disclosures. We provide independent assurance to support large businesses operating in California that are subject to SB 253.


ESG Data & Sustainability Report Assurance

Our multidisciplinary team provides ESG and sustainability disclosure assurance tailored for GRI, CDP, IFRS S1 & S2, CA SB 261, and CA AB 1305.
Learn more ›


CASEI Verification and SBET Validation for GSCC® Certification

KERAMIDA is a GSCC®-approved Certification Body for the Steel Climate Standard.

As one of GSCC®’s first approved verifiers for the Steel Climate Standard, we provide verification of Company Average Steel Emissions Intensity (CASEI) and validation of Science-Based Emissions Targets (SBETs) — required for certification under the GSCC® Steel Climate Standard. Learn more ›


Featured GHG Verification and Assurance Projects:

 

Why Partner with KERAMIDA?

KERAMIDA brings a tailored, expert-driven approach to every GHG verification.

We begin by understanding your unique data processes through interviews with key personnel, because no two organizations manage emissions data the same way.

We then conduct a thorough review and advanced analytics to validate your disclosures, identify anomalies, and uncover both risks and opportunities. Our team applies proven recalculation procedures and evaluates all underlying assumptions to ensure accuracy and compliance.

Throughout the process, we work closely with your team to strengthen data quality and reporting. By project completion, all material issues are addressed, resulting in stronger disclosures and a credible, third-party verification opinion that adds value and trust to your ESG performance.

    • Certified Lead GHG Verifiers: Several members of our Assurance Team are accredited as Lead GHG Verifiers in states with a compliance-driven cap and trade program, including California and Oregon.

      • California ARB GHG Lead Verifiers

      • California ARB GHG Lead Verifier, Oil and Gas Accredited

      • California ARB Low Carbon Fuel Standard Lead Verifier

      • Oregon DEQ GHG Lead Verifier – Process Emissions

      • Oregon DEQ GHG Lead Verifier – Stationary Source Emissions

      • Oregon DEQ GHG Lead Verifier – Natural Gas Systems

    • Registered Professional Engineers (PE)

    • Chartered Public Accountant (CPA, CA)

What our clients say:

We did it! Thanks for all your support. This is such a big moment for our company, and you made it possible! I look forward to working with you on even bigger moments ahead.
— Alternative Energy Provider (GHG Verification for Carbon Removal)
It has been an absolute pleasure working with Team KERAMIDA!
— Multinational Semiconductor Equipment Corporation (GHG Verification for CDP disclosure)

Related Services: