Service
Limited Assurance Services
Third-party verification of your ESG data. Add credibility to your reporting. Meet investor and regulatory requirements.
What is Limited Assurance?
Limited assurance is a form of third-party verification that provides moderate-level confidence in your ESG data and reporting. It's the ESG equivalent of a financial audit, but focused on sustainability data. When you report ESG data to investors, customers, or regulators, they want confidence that your numbers are accurate. Limited assurance—third-party verification per ISAE 3410 standard—provides that confidence.
Why You Need This
Our Approach
We follow the international ISAE 3410 standard for sustainability information assurance with 5 key steps.
Engagement Planning
Understand your ESG reporting scope, identify what data will be verified, and establish clear parameters and timeline.
Risk Assessment & Materiality
Identify which ESG metrics are most material to your business. Focus our verification efforts on highest-risk and highest-impact areas.
Control & Process Review
Review your ESG data collection processes, systems, and controls. Assess where gaps or risks exist in your data management.
Testing & Verification
Test supporting data and documentation, verify calculations against source materials, and assess reasonableness of reported numbers.
Management Review & Reporting
Discuss findings with your team, recommend corrections if needed, and issue our limited assurance opinion and report.
What's Included
Data Collection Review
Methodology Verification
Supporting Documentation
Limited Assurance Opinion
Standards & Methodologies
ISAE 3410
International standard for sustainability assurance issued by the International Auditing and Assurance Standards Board.
GRI Standards
If you're reporting under the Global Reporting Initiative framework, we ensure compliance with GRI disclosure requirements.
ISSB Standards
Verification against International Sustainability Standards Board disclosure requirements for your industry.
GHG Protocol
If emissions are being reported, we verify calculations align with GHG Protocol methodology and emission factors.
Typical Timeline
Engagement planning, scope definition, preliminary review
Process review, control assessment, materiality determination
Testing and verification work
Report finalization, delivery, debrief
When You Need This
- Before major investor rounds or exits
- When reporting ESG data to LP investors
- For customer due diligence requests
- When pursuing ESG certifications or ratings
- To meet emerging regulatory requirements
Key Benefits
Credibility Boost
Third-party verification signals to investors and stakeholders that your data is accurate and reliable.
Investor Confidence
Many PE firms and large corporate investors now expect verified ESG data before making investment decisions.
Customer Trust
Companies conducting supply chain due diligence trust verified emissions data more than unverified claims.
Regulatory Advantage
Some regulations give credit for third-party verification and it provides evidence of good faith compliance efforts.
Related Services
Limited assurance often works in combination with these services.
Ready to Verify Your ESG Data?
Get in TouchLet's discuss your ESG reporting needs and how limited assurance can add credibility to your disclosures.