About Us

Atveris – an anagram of the Latin word veritas, meaning truth – reflects our commitment to integrity, independence, and rigour. We are a senior-led specialist assurance firm providing independent assurance over sustainability data and ESG disclosures, supporting organisations build confidence in the information they report. We utilise deep technical expertise and methodologies aligned with international standards.
In a landscape of increasing regulatory requirements, investor scrutiny, and heightened expectations for transparency, Atveris supports organisations in delivering reliable, decision‑useful sustainability information that stands up to external review.

Our Vision
To strengthen trust in sustainability information by making assurance a foundation for credible decision‑making.

Our Mission
To provide independent, high‑quality sustainability assurance that enables organisations to report with confidence, clarity, and integrity.
What We Do
Atveris provides independent assurance of sustainability and ESG KPIs, including:
- Greenhouse gas emissions and climate metrics
- Sustainability and ESG reports
- Regulatory and voluntary sustainability disclosures
Our services are designed to support organisations at every stage of their sustainability journey – from voluntary reporting through to regulated disclosures – ensuring that data and claims are credible, consistent, and defensible.
Standards & Frameworks

Our Approach
All Atveris engagements are conducted independently and in line with recognised international assurance standards, including applicable ISO standards such as ISO 14064-3, as well as emerging sustainability assurance standards.
We apply a rigorous, evidence‑based approach that prioritises:
- Objectivity and independence
- Technical accuracy
- Clear, actionable assurance conclusions
This approach enables our clients to meet regulatory expectations, respond to stakeholder scrutiny, and strengthen internal confidence in sustainability data.
