Independent assurance. Without the friction.
We deliver statutory audits, internal audit co-sourcing, forensic investigations and ESG assurance engagements for organisations that need Big-Four technical depth without the delivery overhead.
Assurance that earns the trust it claims.
Our audit practice is built around independence, scepticism and technical rigour - the three qualities regulators expect and boards rely on. We run ICAEW-aligned methodologies, invest in data analytics on every engagement, and publish clear communication at every audit stage so management is never surprised.
Before work begins, we clarify the operating context, governance expectations, and commercial pressures behind the brief. That gives the engagement a clear purpose before technical analysis starts.
The result is a more complete advisory view: what matters now, where risk may surface next, and how recommendations can be implemented without creating unnecessary hand-offs or ambiguity.
Scope
Clarify the decision, deadline, stakeholders, and evidence standard before work begins.
Delivery
Combine partner judgement, technical review, and practical implementation planning in one workstream.
Follow-through
Convert findings into owners, actions, and next steps that leadership can track after the session.

Four specialist audit streams, one integrated team.
Statutory Audit
Companies Act audits for UK entities, groups and subsidiaries, with clear reporting to boards and audit committees.
- UK GAAP & IFRS
- Group / subsidiary coverage
- Technical accounting opinions
Internal Audit
Co-sourced or fully outsourced internal audit functions with risk-based plans and board-ready reporting.
- Risk-based planning
- Co-source or outsource
- Board & committee reporting
Forensic & Investigations
Fraud, dispute and regulatory investigations led by chartered forensic specialists.
- Fraud & asset tracing
- Expert witness
- Regulatory response
ESG Assurance
Limited and reasonable assurance on ESG disclosures under ISSB, ISAE 3000 and TCFD.
- ISAE 3000 engagements
- ISSB & TCFD reporting
- Scope 1-3 emissions
What clients get from an Aureliant audit.
Technical memoranda
Written opinions on revenue recognition, lease treatment, consolidation and other judgment calls.
Data-led procedures
Full-population testing using scripted analytics, not just sampling.
Controls observations
A practical controls letter that management can actually act on.
Year-round access
Technical questions answered between audits, not deferred to next planning meeting.
Quality reviews
Every file is EQR reviewed before the opinion is signed.
Clear communication
A written status every two weeks, so boards are never surprised at the year-end meeting.
An audit is not a commodity. If a provider is competing only on fee, you are almost certainly being under-served somewhere in the file.
Our audit philosophy
Assurance without scepticism is just paperwork. We challenge the judgements management would rather leave un-challenged - because that is precisely the work a board is paying an auditor for.
Every file is led by a signing partner whose name appears on the report, not just the engagement letter.
Specialist assurance areas
SOX & Internal Controls
Control design, testing and remediation aligned to Sarbanes-Oxley style expectations and board reporting - typically run alongside our Internal Audit advisory practice.
IT Audit Advisory
IT general controls, automated controls, change management and evidence from systems across financial and operational assurance.
What to expect when you appoint Aureliant.
Most first-year engagements can begin within 3-4 weeks of appointment, subject to independence checks and client acceptance procedures.
Thinking about rotating your auditor?
We will explain, in writing, how an Aureliant audit would differ - scope, timing, fee and the partner who will sign it.