What we do
Footprint Verification.
Done Properly.
We verify organisational greenhouse gas inventories against ISO 14064-1 and the GHG Protocol. Scope 1, 2 and 3. Single-site operations to multi-entity global inventories spanning dozens of countries. We do one thing, and we do it to the standard that government approval demands.
accurate → complete → consistent → transparent
The Complete Picture of Your Corporate Climate Impact
We verify your Scope 1 (direct), Scope 2 (indirect energy), Scope 3 (value chain) and Scope 4 (avoided) emissions against ISO 14064-1 and the GHG Protocol Corporate Standard. Our verification confirms that your organisational inventory is accurate, complete, consistent and transparent — providing the reliable baseline your board, your investors and your regulators require.
We have verified inventories ranging from single-site SMEs to multi-entity global operations spanning dozens of countries and complex emission source categories — including combined heat and power systems, international fuel consumption matrices, half-hourly electricity data, refrigerant losses, fleet operations, and full Scope 3 boundary assessments covering purchased goods and services, business travel, employee commuting, waste, water and upstream logistics.
If your inventory is straightforward, our process and costs will reflect that. If it is complex, we have the technical depth to handle it.
most start with limited assurance
The Right Level of Assurance for Your Needs
ISO 14064-3 defines two levels of assurance. Both are legitimate. The right choice depends on your reporting obligations, your stakeholder expectations, and the level of scrutiny your data will face.
Limited Assurance
The standard for most voluntary reporting, CDP submissions, and ESG disclosures. This approach uses inquiry, analytical procedures and targeted data testing to provide a moderate level of confidence that your GHG assertions are free from material misstatement. It results in a negative-form conclusion — "nothing has come to our attention that causes us to believe the data is materially misstated."
Cost-effective, proportionate, and accepted by the vast majority of reporting frameworks.
Reasonable Assurance
The highest level of confidence. Designed for high-stakes regulatory compliance, mandatory disclosures, and situations where the data will face detailed external scrutiny. This comprehensive audit involves extensive data testing, source-level cross-checking, and detailed methodology review. It results in a positive-form conclusion — "In our opinion, the GHG statement is fairly stated in all material respects."
Reasonable assurance typically requires 50–100% more audit hours than limited assurance.
Not sure which you need?
Most organisations start with limited assurance. If your reporting obligations, procurement requirements or board expectations demand more, we will tell you. We do not upsell — we advise on what the evidence and the standards require.
ISO 14064-3 & ISO/IEC 17029 Methodology
Seven Stages. No Shortcuts. No Assumptions.
Our verification programme follows ISO/IEC 17029 and ISO 14064-3, the international standards for the verification of greenhouse gas statements.
A note on cost. The seven stages below are delivered with outstanding value for money — structurally lower fees, faster engagement, and deeper expertise than compliance-market alternatives. Why Carbon Verification →
Pre-Engagement Review
We assess whether we have the competence, capacity, and independence to deliver your engagement properly. We will either accept and issue a formal proposal, or decline and explain why.
The Verification Agreement
A legally enforceable agreement defines the scope, applicable standard, level of assurance, materiality threshold, and the rules governing use of the verification statement in your external communications.
Planning
We assign a team with the competence appropriate to your sector, assess the risk of material misstatement, and produce a documented verification plan. You are informed of team composition in advance.
Verification Execution
We examine your inventory, calculation methodologies, emission factors, and activity data — tracing figures back to source records, testing calculations, and assessing boundary completeness.
Where corrective action is required, we prepare an action plan and re-audit after implementation at no additional charge. See De-Risking Verification →
Independent Review
The verification team's work is reviewed by personnel with no involvement in the execution, confirming that evidence is sufficient and findings are appropriately supported.
Decision & Verification Statement
The decision is made by personnel independent of the execution team — a structural requirement of ISO/IEC 17029. A positive decision results in a formal verification statement and certificate. A negative decision comes with a clear explanation of what is required to achieve confirmation.
Post-Issuance Monitoring
If new information comes to light that could materially affect the verification statement, we will contact you and — if necessary — revise or withdraw it.
We do one thing
Independent Verification. No Conflicts. No Compromises.
We do one thing: independent ISO 14064‑3 verification of greenhouse gas inventories. No management system certifications. No advisory services. No software commissions. No conflicts of interest — so when we issue a verification opinion, it means something.
document findings → free audit of corrections
Not Ready for a Full Audit?
If your organisation is preparing for its first verification — or suspects your current inventory has gaps — the instinct is often to wait.
That instinct is understandable. Conventional verification is binary: a full fee is charged whether findings are identified or not, and resubmission requires a separate engagement at full cost. The rational response is to delay until you are certain you will pass. Most organisations do exactly that. Improvement gets deferred in the process.
We work differently. If your initial audit identifies issues with your methodology or data, we document them clearly, agree a structured action plan, and reaudit at no additional fee once corrections are in place. This is not a premium tier or an optional add-on. It is how every engagement with us works.
No binary outcomes
Findings are documented in detail with a clear, structured pathway from identified issue to verified submission.
No resubmission fee
Where corrections are made in response to our findings, the reaudit is FREE. There is no second invoice.
Rigorous, not lenient
Our approach removes the financial penalty for finding issues. It does not lower the technical bar. Our opinion is issued to the same standard regardless of how many rounds it takes.
See what verification can deliver for your organisation
Every engagement starts with a conversation. We will scope the work, explain the process and give you a clear picture of costs before you commit.