Sustainability Data Assurance


We provide solutions for real world positive impact.

Data quality analysis ESG data verification

What this service is

Sustainability data assurance is the process of testing and strengthening the quality of ESG and climate data before it is used in reporting, decision-making or external assurance. It focuses on whether data is accurate, complete, consistent and supported by evidence.

Ecostatis provides independent reviews of your sustainability data and systems, helping you identify weaknesses and close gaps before auditors, regulators or investors do. Our work sits at the intersection of sustainability, finance and internal controls.

Sustainability data assurance
Data quality testing

Why it matters

ESG and climate data are now used in investment decisions, regulatory filings, bank covenants and executive incentives. Errors can have real financial and reputational consequences. As assurance requirements expand, organisations that have not invested in data quality face higher costs, delays and potential findings.

By proactively strengthening data and controls, you reduce these risks and increase confidence in your sustainability disclosures. Reliable data also improves management decision-making, enabling more precise target-setting and performance tracking across the organisation.

ESG data validation

What we offer

We provide comprehensive sustainability data assurance services:

  • Data quality reviews for key ESG, climate and impact metrics
  • Assessment of methodologies, assumptions and calculation processes
  • Evidence trail and documentation checks for critical disclosures
  • Controls mapping across data collection, consolidation and reporting
  • Recommendations for process improvements and system enhancements
  • Management briefings on key risks, quick wins and longer-term priorities

We can focus on specific metrics (e.g. greenhouse gas emissions, diversity data) or undertake broader ESG data health checks.

Data assurance process

Why choose us

Ecostatis understands both the technical aspects of ESG data and the expectations of auditors, regulators and investors. We are independent from your reporting process, giving us the objectivity needed to challenge assumptions and identify blind spots.

We are also practical: our recommendations are prioritised by risk and effort, so you can build stronger data systems step by step. Our cross-market experience means we can help you meet evolving expectations in the UK, EU and African contexts without over engineering your approach.

Return on investment

Strengthening sustainability data quality delivers multiple benefits. You reduce the risk of re statements, findings or delays during external assurance. You also make better use of internal resources by focusing assurance efforts on areas of greatest risk.

High quality data builds trust with external stakeholders and supports more confident strategic decision making. Over time, organisations that invest in data assurance are better positioned to meet new disclosure requirements efficiently and credibly.

Get Started with Data Assurance
Data quality management