Independent Review & Due Diligence
Independent testing before assurance, investment or change
We review carbon inventories, methodologies, data and sustainability claims to identify what is reliable, uncertain or unsupported. For transactions and investment decisions, we focus the work on the technical, data and delivery issues that could affect risk, value or implementation.
Independent Review & Due Diligence
Independent testing before assurance, investment or change
We review carbon inventories, methodologies, data and sustainability claims to identify what is reliable, uncertain or unsupported.
For transactions and investment decisions, we focus the work on the technical, data and delivery issues that could affect risk, value or implementation.
The work can include
- GHG inventory review
- Assurance readiness
- Methodology review
- Data-quality review
- Calculation testing
- Carbon due diligence
- ESG due diligence
- Sustainability investment due diligence
- Technology and supplier assessment
- Boundary and evidence review
- Red-flag assessment
- Remediation planning
Independent review and assurance readiness are not formal third-party verification. Carter Sustainability Consulting is not represented as an accredited verification body.
Typical outputs
- Independent review report
- Structured findings across boundaries, methodology, calculations, data and evidence.
- Red-flag assessment
- A concise view of issues requiring further investigation or remediation.
- Readiness plan
- Prioritised actions before formal third-party verification.
- Due diligence report
- Decision-focused analysis of material sustainability risks, evidence and assumptions.
Related services
Our commissions often combine this work with one or more of these related services.
Need specialist sustainability support?
Tell us what you're trying to solve. We will assess the problem, identify where specialist support would add value and propose a practical way forward.