Data integrity
Are the source systems complete, consistent and reconciled to the underlying activity?
HomeAudit & Assurance
Independent assurance, built into the platform.
We don’t just help you collect carbon data — we validate, verify and certify it. Quantisage Certified Validators review your numbers and sign an audit trail that stands up to external scrutiny.
What we validate
Assurance is more than a checkmark.
Our validators interrogate the things that make a carbon number defensible — the same dimensions an external auditor will test.
Methodology
Are organizational and operational boundaries drawn correctly across every entity?
Factor selection
Are the right emission factors applied, with appropriate sources and vintages?
Audit trail
Can every reported figure be traced back to its evidence, end to end?
Levels of assurance
Limited or reasonable — your call.
Regulations are moving from limited toward reasonable assurance over time. Quantisage AI prepares your data for both, so you’re ready as the bar rises.
Limited assurance
A moderate level of confidence: the validator finds nothing that suggests the data is materially misstated. It’s where most first-time reporters and current CBAM/SB-253 obligations begin.
- Risk-based review of methodology and data
- Negative-form conclusion
- Fastest route to a compliant filing
Reasonable assurance
A higher level of confidence with deeper testing and a positive opinion — increasingly required as disclosure rules mature. Same platform, expanded evidence and controls.
- Substantive testing and controls evaluation
- Positive-form opinion
- Future-proofs you for tightening regulation
The assurance process
Three steps, one platform.
Review & scope
We agree boundaries, materiality and the framework, then map your data against the assurance criteria.
Test & verify
Validators test samples, check factors and trace figures to evidence — directly inside the Quantisage AI ledger.
Certify & sign
You receive a validator-signed report and a certificate you can hand to auditors, regulators and customers.
The validator network
Quantisage Certified Validators.
Validation and measurement live on the same platform, so nothing is lost in handoffs between a software vendor and a separate auditor. Our validators are experienced GHG verification professionals who sign the numbers themselves.
- In-house verification expertise, not outsourced review
- Evidence and sign-off attached to every filing
- Continuous assurance as your data updates
AC
Anisa Chowdhury
Lead GHG Verification & Assurance
Fifteen years verifying greenhouse-gas data — at S&P Global, PwC and Grant Thornton — taught me that trust is built in the audit trail. That’s what we engineer into Quantisage AI.
ISAE 3000Assurance engagements standard
ISO 14064-3GHG validation & verification
ISO 14065Requirements for GHG bodies
GHG ProtocolCorporate & Scope 3 alignment