A clear plan
An agreed scope, timetable, assurance level and fee, with responsibilities set out before work begins.
How verification works
Our programme sets out how we agree an engagement, gather evidence, report findings and reach an independently reviewed conclusion. Here is what that means for your team.

The overview
We agree your reporting period, boundaries, the emissions to be covered, the assurance level and your deadline, then confirm the fee.
We review the information you already have, from part-year or last year’s data, months before your deadline. Your team gets private, documented feedback to act on at its own pace.
We verify the complete reporting period, an independent reviewer checks our work, and you receive your verification statement and findings report.
What you receive
An agreed scope, timetable, assurance level and fee, with responsibilities set out before work begins.
Documented early findings and time to act on them. It is free when you commission verification and is not added to your fee.
A formal statement setting out what was verified, against which criteria and to what level of assurance, with a findings report to help you improve next year.
The final statement identifies the organisation, reporting period, criteria, scope, assurance level, material limitations and conclusion. A confirming conclusion is dependent on the evidence; it is never guaranteed.
For CDP disclosures, we also complete CDP’s verification letter, which confirms the boundary, emissions, period, standard, assurance opinion, provider and lead verifier for your response. Download a sample CDP verification letter (PDF)
The engagement in detail
Responsibilities
Plan and perform the verification, assess evidence, document findings and report the conclusion. We explain what the relevant requirements mean for our findings.
Prepare and own the inventory, make records and staff available, disclose relevant changes and implement corrections. You retain responsibility for external reporting.
Technical foundation
We verify organisational GHG statements using ISO 14064-3. The programme is designed around the verification-body requirements of ISO/IEC 17029 and ISO 14065, with team competence assessed using ISO 14066. Our documented procedures cover competence, impartiality, independent review and the control of verification statements.
We consider materiality, uncertainty and the risk of misstatement when planning evidence gathering. Verification uses sampling and professional judgement; it does not provide absolute assurance that every figure is correct.
Limited and reasonable assurance · Remote activities · Standards and credentials
Accountability
We retain engagement records securely and treat client information under our confidentiality arrangements. The published policies explain how we handle impartiality, complaints and appeals.
Confidentiality policy · Impartiality policy · Appeals and complaints
You will talk to a verifier, not a salesperson. Tell us why you report, which scopes you need verified and when you need the statement, and ask whatever you need to. You do not need a finished inventory. If you go ahead, the person you speak to leads your verification.
No obligation, and no sales pitch