
Audit & Advisory Firms
Unlock opportunities with ESG assurance and advisory services
Equip your firm with the methodologies and expertise needed to offer ESG assurance and advisory services at the highest standard
The Challenge
Our Services
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ESG audit methodologies and frameworks
Our team develops ESG audit methodologies aligned with ISAE (Ireland) 3000, ISAE 3410, and ISSA 5000. We provide frameworks that ensure compliance with global assurance standards and offer ready-to-use ESG workpaper templates to support firm-wide implementation.
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Training and capacity building for audit teams
We deliver training sessions on ESG auditing and best practice in assurance. Our programmes equip audit teams with practical ESG risk assessment techniques and include hands-on workshops for audit professionals and partners.
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ESG advisory and regulatory compliance support
We guide firms in integrating ESG considerations into financial audits and provide expert advisory services on emerging regulatory requirements. Our team supports firms in developing ESG advisory services that meet client expectations and industry best practice.

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Establishing ESG assurance leadership in the UK and Ireland
The UK and Irish member firm of a Top 10 international network sought to position itself as a leader in ESG assurance, ahead of the first wave of CSRD. With increasing regulatory pressure and client demand, the firm also needed to formalise its approach to considering climate and sustainability-related risks in its financial statement audits.
Our director developed the firm’s ESG assurance strategy, securing its registration as Ireland’s first ACCA-regulated Sustainability Assurance Service Provider (SASP). This milestone allowed the firm to offer independent ESG assurance to clients in scope of the Corporate Sustainability Reporting Directive (CSRD), aligning with global frameworks such as ISSA 5000 and ISAE (Ireland) 3000. By integrating sustainability considerations into audit methodologies, the firm strengthened its ability to assess ESG risks and ensure sustainability disclosures met regulatory expectations.
To enhance internal capabilities, we developed structured training for audit teams, enabling them to assess ESG risks within financial statement audits and implement assurance methodologies effectively. The firm’s strengthened governance, risk management, and internal controls positioned it as a trusted ESG assurance provider, offering clients confidence in their sustainability reporting.
Case Study: Mid-Tier Audit Firm