CSG’s Audit and Assurance services give businesses and stakeholders the clarity they need to move forward with confidence.

Delivering insight, transparency, and trusted financial reporting for your organisation.

Get an overview of our core Audit & Assurance services.

Download Brochure

Dynamic businesses face constant change, from
shifting markets to evolving internal priorities, and they
need to respond with clarity and confidence. As a leader,
whether you’re a CFO, FD, owner or audit committee
chair, you need assurance that your team and business
are prepared for what’s ahead, and that you fully
understand the impact on your financial position.

For many businesses, audit and assurance are far
more than just a compliance exercises, with the right
combination of expertise, experience and execution, they
can deliver meaningful insights into your systems,
processes, internal reporting and team. They can also
highlight the wider issues your organisation faces, both
today and in the future.

At CSG, our audit and assurance specialists bring deep
experience, practical tools and a collaborative approach
to every engagement. Our senior leaders stay closely
involved, ensuring advice is joined-up, tailored and
focused on what matters most to your business.

We provide a wide range of services

Our Audit & Assurance Offering

Tailored assurance, delivered by a senior-led team. Whether you need a full statutory audit or specific procedures over systems and controls, we’ll scope the right work and keep you informed throughout.
Explore our services below.

Statutory Audit

A statutory audit is a legally required review of your financial statements, confirming accuracy and compliance. At CSG, we deliver clear, independent assurance for directors and stakeholders, while also identifying areas to strengthen governance and decision-making.

Non-statutory Audit

Even when not required by law, an independent audit can provide valuable reassurance. We perform non-statutory audits to strengthen stakeholder confidence, support funding or banking needs, and give business owners a clear, objective picture of financial performance.

Internal Audit

Internal audits focus on systems, controls, and processes rather than statutory accounts. CSG helps organisations identify risks, test controls, and improve efficiency - providing practical recommendations that enhance governance and reduce exposure to errors or weaknesses.

Grant Audits / Funding Compliance

Many grant providers require independent assurance. Our team conducts audits to confirm funds are used appropriately and conditions are met, giving both organisations and funders confidence in reporting, compliance, and the proper management of resources.

Charities &
Not-for-profit Audits

Charities and not-for-profits face unique reporting and governance obligations. We provide tailored audits that ensure compliance with regulations while supporting trustees and boards in demonstrating accountability, transparency, and responsible stewardship of resources to stakeholders and regulators.

Pension Scheme
Audits

Pension schemes must be audited annually. CSG provides clear assurance that accounts are accurate and compliant with pension regulations, helping trustees meet their responsibilities and members maintain confidence in the integrity of scheme reporting and governance.

Agreed-upon
Procedures

When full audit assurance isn’t needed, agreed-upon procedures target specific areas such as controls, transactions, or reporting. We work with you to define the scope and deliver focused, independent findings that meet stakeholder requirements quickly and efficiently.

Assurance Over
Systems & Controls

Strong systems and controls are the backbone of reliable reporting. Our assurance reviews test effectiveness, highlight risks, and provide practical recommendations - giving management and boards the confidence that processes are working as intended.

See all Services

Discover how we can support your business.

What make CSG's approach different

Laura and CSG team chatting
Proactive, hands-on leadership

At CSG, you’ll always work directly with experienced people who know your business.
Our partners and senior team stay closely involved from the start - leading your work,
not just signing it off. We believe the best results come from working alongside you,
not at a distance.

Learn more
Focused on what really matters

Every business is different, so we take the time to understand yours. We work with you
to plan carefully, identify risks early, and shape our approach around what matters
most to your organisation. It’s about tackling the real issues directly - so they’re
resolved quickly, clearly, and with lasting impact.

Learn more
Clear, open communication

Good communication makes everything else work better. We keep conversations
straightforward, consistent, and tailored to how your team works best. Whether that’s
regular onsite time or flexible remote updates, we make sure information flows
smoothly - so there are no surprises, just steady progress.

Learn more

Get in Touch

We’d be happy to talk through your audit needs.
Reach out to Edel Broderick, Audit Partner, or Roisin Mulvihill, Audit Partner at CSG today to explore how we can support your business - helping you navigate complexities and uncover new opportunities through our audit and assurance services.

Contact Our Team

Want a full overview?

Download our Audit & Assurance brochure for a clear summary of our services.

Download Brochure

Testimonials

What our clients say...

“Working with CSG has brought clarity, structure and peace of mind to how we manage payroll, tax returns and compliance. Their expertise and responsiveness have made a real difference - saving us time and allowing us to focus on running our school. The team is always professional, knowledgeable and detail-oriented.

They explain complex matters in simple terms, and their support gives us the confidence that everything is being handled correctly. We’re so grateful for their continued guidance and look forward to working together as our business grows.”

Young business man talking on phone
Rosemarie McGrath

School Manager, Benin Casa Montessori

What our clients say...

“In Assess Ireland we work with CSG as our trusted partner for all our Audit, Taxation, Corporate Finance and Advisory needs. Their commitment, professionalism and deep understanding of our business have made CSG a partner that adds real value. We look forward to continuing our very successful partnership with CSG as we continue to grow our business.”

Young business man talking on phone
Padraig O’Sullivan

Finance Manager, Assess Ireland

What our clients say...

“Our relationship with CSG began following their acquisition of Philip Manzor’s practice. The transition was seamless, and we’ve continued working with the same trusted team ever since. CSG supports us with business accounts, payroll and personal finances. Their guidance has streamlined our operations and given us more clarity in planning for upcoming tax obligations.

The team’s professionalism is outstanding - from the welcoming front-of-house staff to the advisors at the top level. The advice is always sound, the atmosphere approachable and the team consistently available when we need them. Would we recommend CSG? Absolutely without hesitation.”

Young business man talking on phone
Gerrard O’Sullivan

Director & Co‑Owner, The Castle Bar (A & G O’Sullivan Ltd)

What our clients say...

“We have engaged CSG for audit, tax, and advisory services over the past four years. Initially, we were drawn to their competitive pricing and deep expertise, and they have consistently exceeded our expectations.
Their independent verification of our financial processes has been invaluable to our stakeholders, ensuring compliance with all statutory obligations.

The team provides excellent advice on financial and taxation matters with professionalism and efficiency.
What we value most is their accessibility and clear, straightforward guidance. We’ve truly enjoyed working with CSG and look forward to continuing this professional relationship. I highly recommend them to others.”

Young business man talking on phone
Eugene Maher

CEO, Shannonferry Group Limited

What our clients say...

“I engaged CSG in 2005 for my tax returns following a word-of-mouth recommendation, and I have been a satisfied client ever since. Working primarily with David and Dan, I rely on CSG for both my personal and tax returns.
Their service is consistently excellent and timely, providing year-round support and advice whenever I have queries. The value for money is outstanding - couldn’t be better!
I have confidently recommended CSG to my friends and colleagues.”

Young business man talking on phone
Dr. Kenneth Feeley

Consultant, Histopathology, Kerry Histopathology Services / Bon Secours Hospital Tralee

What our clients say...

“CSG has been a reliable business partner to Clíste Hospitality for the past ten years. Their professionalism, expertise, and attention to detail are what really set them apart.They truly understand our needs and go above and beyond to support our goals. Their team is responsive, proactive, and always a pleasure to work with.
I highly recommend CSG to anyone looking for a dependable and effective business partner.”

Young business man talking on phone
Paul Fitzgerald FCA

CEO, Cliste Hospitality

What our clients say...

“Absolutely brilliant. The people we work with are professional, helpful, and always deliver exceptional results.”

Young business man talking on phone
Matt Walz

Managing Partner, Niedax CMS Limited

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