YOUR COMPLIANCE, OUR EXPERTISE

EXPERT AUDIT FIRM

At AAB, our audit firm goes beyond standard reporting. We provide clarity that strengthens financial controls, minimises risk, and uncovers opportunities for growth.  With decades of experience, our approach ensures that every audit delivers accurate results, trusted insights, and practical recommendations - helping your business stay compliant and confident in its next steps.

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WHAT SETS OUR AUDIT FIRM APART?

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280+ Specialist auditors

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600+ Audits completed every year

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80+ Countries where we deliver services

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50+ Prestigious awards recognising our impact

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Ranked as a Top 20* audit firms UK

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SLEEP BETTER, WORK BETTER, WITH A RELIABLE AUDIT FIRM

Stakeholders and shareholders need confidence. Business leaders need clarity. Our audit firm delivers both. When you partner with us, you gain more than accurate reporting—you gain insights into the risks and opportunities that truly shape your future.

Every auditor on our team is focused on making sure you can make confident decisions, protect your reputation, and plan with clarity. By taking the time to understand your operations, we highlight the risks that matter most, while identifying opportunities that can strengthen performance. The result: confidence that lets you sleep easier and focus on growth.

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THE SUPPORT YOU DESERVE, FROM AN AUDIT FIRM THAT GETS IT

We hear the same frustrations time and again: businesses paying more for their audit firm while seeing service quality decline. Many clients come to us because they feel overlooked by their previous provider, or because their business has grown beyond the capability of their current audit company.

At AAB, we take a different approach. An audit is never just a tick-box exercise. Our auditors use their expertise to provide practical insights that help businesses improve processes, reduce risks, and make stronger decisions. We don’t just turn up once a year—we’re here to help you navigate complexity, adapt to challenges, and achieve sustainable growth.

THE SUPPORT YOU DESERVE, FROM AN AUDITORS THAT GET IT

We hear the same frustrations time and again: businesses paying more for their audit firm while seeing service quality decline. Many clients come to us because they feel overlooked by their previous provider, or because their business has grown beyond the capability of their current audit company.

At AAB, we take a different approach. An audit is never just a tick-box exercise. Our auditors use their expertise to provide practical insights that help businesses improve processes, reduce risks, and make stronger decisions. We don’t just turn up once a year—we’re here to help you navigate complexity, adapt to challenges, and achieve sustainable growth.

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RELIABLE RESULTS, REAL SUPPORT

Our reputation as a leading audit company is built on technical excellence and sector-specific knowledge. Many of our auditors have trained at Big 4 firms, bringing with them the highest standards of professionalism and accuracy. But at AAB, that expertise is delivered with the agility and responsiveness of a firm that truly cares about its clients.

We work with businesses across multiple industries—construction, real estate, consumer goods, infrastructure, and technology. By combining technical depth with commercial understanding, we provide outcomes that are both accurate and relevant to your market.

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UK Audit firm offering insight & control

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Experienced international auditors

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Financial clarity from trusted auditors

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BIG PICTURE THINKING, LOCAL AUDITORS 

What makes us different from other auditing firms in UK? It’s the way we blend global reach with genuine local expertise. Our auditors understand the markets you operate in and the challenges you face, but they’re also backed by the resources of the wider AAB Group. This means you benefit from both personal service and international capability.

Our culture is client-first. We ask the right questions, use the latest technology to streamline processes, and stay genuinely invested in your success. With us, audits are delivered on time, with minimum disruption, and with insights that help you plan for the future.

BIG PICTURE THINKING, LOCAL AUDITORS 

What makes us different from other auditing firms in UK? It’s the way we blend global reach with genuine local expertise. Our auditors understand the markets you operate in and the challenges you face, but they’re also backed by the resources of the wider AAB Group. This means you benefit from both personal service and international capability.

Our culture is client-first. We ask the right questions, use the latest technology to streamline processes, and stay genuinely invested in your success. With us, audits are delivered on time, with minimum disruption, and with insights that help you plan for the future.

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WHAT OUR AUDIT COMPANY  DELIVERS

We provide audit services that combine technology, expertise, and a personal approach. Every accounting audit is led by the right people, who listen to your needs and commit time to getting things right.

Clear communication is at the heart of our auditing service — we raise issues early, plan ahead, keep you updated, and deliver reporting that’s genuinely useful. Our auditors take the time to understand your business, so your audit is tailored, efficient, and adds real value.

"AAB has been pivotal in consolidating our international group of companies. Their professional and collaborative approach fosters a strong sense of partnership. Their expertise ensures our business operates effectively and efficiently across all areas."

CIARAN QUINN, FINANCE DIRECTOR OF PW MINING INTERNATIONAL LTD

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HOW OUR AUDIT FIRM DELIVERS 

When you choose AAB, you’re choosing one of the most respected audit firms UK, known for rigour, accuracy, and practical outcomes. Here’s what sets us apart:

  • Depth of Resource: Teams can be mobilised quickly for any project—large or small.
  • Partner-Led Expertise: Our partners remain actively involved, ensuring consistency and quality.
  • Cross-Service Capability: Access to our wider advisory and accountancy knowledge base.
  • High-Quality Team: Senior professionals with Big 4 experience and a commitment to excellence.
  • Value for Money: A transparent approach that aligns cost with tangible outcomes.
With every engagement, we focus on providing clarity, control, and actionable insights that make a difference.

HOW OUR AUDIT FIRM DELIVERS 

When you choose AAB, you’re choosing one of the most respected audit firms UK, known for rigour, accuracy, and practical outcomes. Here’s what sets us apart:

  • Depth of Resource: Teams can be mobilised quickly for any project, large or small.
  • Partner-Led Expertise: Our partners remain actively involved, ensuring consistency and quality.
  • Cross-Service Capability: Access to our wider advisory and accountancy knowledge base.
  • High-Quality Team: Senior professionals with Big 4 experience and a commitment to excellence.
  • Value for Money: A transparent approach that aligns cost with tangible outcomes.

With every engagement, we focus on providing clarity, control, and actionable insights that make a difference.

 

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PROFESSIONAL AUDITORS FOR EXTERNAL AUDIT

Our external audit firm services ensure your financial reporting is accurate, transparent, and fully compliant. But unlike some providers, we don’t stop at the basics. Our auditors take the time to understand your business, challenge assumptions, and provide recommendations that inform stronger decisions.

From risk management to efficiency gains, our approach goes beyond compliance to deliver real value. We also work hard to minimise disruption—delivering results with precision, speed, and efficiency.

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More than a tick-box exercise

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Experienced auditors

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Auditing firms in UK focused on you

PROFESSIONAL AUDIT FIRM FOR NON-PROFITS

Public sector organisations, charities, and not-for-profits operate under increasing scrutiny. Any missteps can attract both regulatory and public attention. That’s why you need a reliable auditor who understands your environment.

Our audit firm has a long track record of supporting social housing providers, universities, and charities. We conduct thorough, independent reviews that go beyond compliance to highlight risks early and provide practical solutions. We also offer ongoing advice and training to keep your organisation confident and compliant in a fast-changing regulatory landscape.

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PROFESSIONAL AUDIT FIRM FOR NON-PROFITS

Public sector organisations, charities, and not-for-profits operate under increasing scrutiny. Any missteps can attract both regulatory and public attention. That’s why you need a reliable auditor who understands your environment.

Our audit firm has a long track record of supporting social housing providers, universities, and charities. We conduct thorough, independent reviews that go beyond compliance to highlight risks early and provide practical solutions. We also offer ongoing advice and training to keep your organisation confident and compliant in a fast-changing regulatory landscape.

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EXPERT JOINT VENTURE & CONTRACT AUDIT FIRM

Joint ventures and complex contracts demand a level of scrutiny only an experienced audit firm can provide. Our team delivers independent, accurate reviews that build trust, recover costs, and ensure transparency.


We support:
  • Joint Venture Audits
  • Contract and Vendor Audits
  • Drilling Audits
  • Completion Accounts

With our approach, you can:
  • Identify risks and efficiency opportunities early
  • Detect and resolve cost discrepancies
  • Protect investments with independent validation
  • Gain insights benchmarked against industry best practice
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EXPERIENCED AUDIT FIRMS UK WITH GLOBAL REACH

As part of Crowe Global and TIAG, we’re one of the few auditing firms in UK with the ability to deliver seamless international support. Whether you’re operating domestically or coordinating with overseas teams, our auditors ensure full compliance with UK statutory requirements while meeting group deadlines.

We keep clients updated on regulatory changes both locally and abroad, ensuring there are no surprises. With AAB, you gain a partner that’s equipped to manage complex, cross-border reviews while maintaining the personal service of a trusted UK-based audit firm.

EXPERIENCED AUDIT FIRMS UK WITH GLOBAL REACH

As part of Crowe Global and TIAG, we’re one of the few auditing firms in UK with the ability to deliver seamless international support. Whether you’re operating domestically or coordinating with overseas teams, our auditors ensure full compliance with UK statutory requirements while meeting group deadlines.

We keep clients updated on regulatory changes both locally and abroad, ensuring there are no surprises. With AAB, you gain a partner that’s equipped to manage complex, cross-border reviews while maintaining the personal service of a trusted UK-based audit firm.

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"It was the start of a big journey that AAB has supported me on all the way through and they continue to do so. AAB knows all my businesses. They understand us and have consistently helped to shape our growth, which has involved advising and auditing businesses with a £50m turnover across the whole group. It’s a key selling point for me that they’ve been on the whole journey, including all the operational challenges we faced during the pandemic."

GRAEME LEE, FOUNDER & FORMER CHIEF EXECUTIVE, SPRINGFIELD HEALTHCARE GROUP

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HOW OUR AUDIT FIRM CAN HELP

At AAB, we know that your shareholders and stakeholders need confidence in your business. You need accurate insight and practical advice to make decisions with certainty and peace of mind.

Our audit firm goes beyond simply reporting financial information. Our auditors ensure your business remains compliant with regulations while providing guidance to support growth and long-term stability. By taking a detailed view of your organisation, our team identifies risks, highlights opportunities, and offers actionable recommendations to strengthen processes and controls.

Working with one of the leading audit firms UK, compliance is just the starting point. We deliver value, clarity, and insight—helping you make informed decisions and build a stronger, more resilient business.

OUR EXPERIENCED AUDITORS

Jim Pirrie - Head of Audit

JAMES PIRRIE

Head of Audit 

James Pirrie leads AAB’s audit firm with extensive experience as a senior auditor, he works closely with businesses of all sizes, helping them navigate complex financial landscapes while staying fully compliant. James combines strategic oversight with hands-on involvement, guiding our audit company teams across the UK to deliver consistent, reliable results. Under his leadership, AAB’s audit firm continues to innovate, providing clients with clarity, insight, and confidence in every review.

Jai Raja - Audit Partner

JAI RAJA

Audit Partner

Jai Raja is an Audit Partner at AAB and the Regional Audit Lead for South England, based in our London office. Jai brings over 17 years’ experience as a senior auditor, supporting clients across manufacturing, renewable energy, real estate, and technology sectors. As Regional Lead for South England, he ensures that AAB’s audit company delivers exceptional local expertise while maintaining the scale and capability of one of the leading audit firms UK.

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A RELIABLE AUDIT COMPANY THAT SUPPORTS YOUR BUSINESSE'S GROWTH.

Our expert auditors are here to help.

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