ESG Glossary
Definition
A high level of independent check on a sustainability report, similar to a financial statement audit. The assurance practitioner tests the company’s controls and gathers detailed evidence before giving a positive opinion that the information is fairly presented. It takes longer and costs more, so many regulators start with limited assurance and plan to move to reasonable assurance over time. Companies also seek it voluntarily when customers or investors want extra confidence in their figures.
In Context
“A European customer asked for reasonable assurance on our emissions, so our assurance team spent three weeks testing meter data at every plant.”
Related terms
Need Help Breaking Down ESG Concepts?
Our experts can explain what these terms mean for your company and how they apply to your reporting.
Keep Learning
FAQs
Data security
We take data security very seriously. ECO-OS uses enterprise-grade security measures, including encryption, secure data storage, regular security audits, and compliance with leading industry standards. Your sensitive ESG data remains private, secure, and confidential at all times.
Do you provide implementation support?
Absolutely! Our professional services team is among the most talented and experienced in the business. They provide hands-on implementation support, systematically guiding your team every step of the way. From initial data discovery and onboarding of users to training and integration, our experts ensure your team rapidly closes gaps and creates new value with ECO-OS.
Do you also support Scope 3 reporting?
Of course. ECO-OS provides an end to end solution for Scope 3 emissions following the guidance of the GHG Protocol. A suite of tools unique to our platform simplifies the complex task of communicating, collecting and aggregating your supply chain data, helping you clearly understand your full value chain emissions and devise actionable reduction programs.
What international standards and frameworks are supported by ECO-OS?
ECO-OS supports alignment with major global ESG reporting frameworks, including CSRD, the GHG Protocol, California SB 253 and SB 261, the UN Global Compact, the UN SDGs, and other leading international standards.


