Services
Audit & Assurance
External, internal and joint venture audit services
Business Advisory
Management accounts, strategic planning, profit improvement, ESG
Consulting
Strategy to delivery, getting the important things done
Corporate Finance
M&A advisory, selling a business, fundraising, valuations, due diligence
Hotel Accounting
Accounting function, automation, daily reconciliations and dashboards, accounts payable
Payroll & Employment
Payroll, global mobility, employee benefits, employment taxes
Private Clients & High Net Worth Individuals
Tax planning & compliance, tax residence and domicile, trust planning
Restructuring & Recovery
Business rescue, liquidations, administrations, insolvency, debt recovery
Sustainable Business & ESG
Baseline assessments, materiality assessments, carbon footprint and sustainability reporting
Tax
Corporate tax, customs duty, VAT, R&D, tax investigations, international tax
Virtual Finance
Bespoke service providing real-time information about your business performance
More from AAB
AAB PEOPLE
Full-service people consultancy – human resources, learning and development
AAB WEALTH
Financial planning, cash flow modelling, retirement planning
AAB Consulting
Business consultancy helping organisations with the challenge of change
Sectors
Business Services
Professional services, medical, recruitment and media
Construction & Property
Property developers, construction companies, housebuilders, landlords
Energy
Renewables, clean energy, energy producers, energy transition, exploration and production
Family Business
Specialist support for businesses owned/managed by families
Food & Drink
Food & drink producers, processors, importers, wholesalers and retailers
Industrial
Engineering, manufacturing, aerospace, automotive, shipping, distribution
Leisure, Retail and Hospitality
Fashion, entertainment, activity centres, hoteliers
Not For Profit
Charities, social housing, higher and further education institutions
Public Sector
Government, non-departmental public bodies, health boards, ALEOS
Technology
Software companies, tech start-ups, cybersecurity firms, and AI innovators.
About
AABout Us
Our story
Our Team
Meet the specialists
Careers
Join the AAB team
Diversity & Inclusion
Building a business where everyone feels they belong
Growing Sustainably - ESG
ESG – Our commitment to building a sustainable business
News
Latest news from across AAB Group
AABIE
AAB charitable initiative
Latest deal boosts AAB Wealth assets under advice beyond £1 billion
Insights
Blogs
Stay informed with cutting-edge news for business growth. Our experts offer industry insights and invaluable advice on accountancy and business strategies.
Case studies
Explore insightful case studies tailored to specific industries, offering invaluable lessons and strategies for success.
Webinars & Events
Engage with dynamic webinars and events tailored to your interests, offering valuable insights and networking opportunities.
ESG Diligence: The Key To Sustainable M&A Transactions
AAB / Our Team / Claire McCallion
LinkedIn
Meet the Business Advisory team
Mallusk Business Advisory Team. Family businesses. Owner-managed businesses. SME’s. Limited Companies. Sole Traders. Partnerships
Business Advisory, VAT, Management accounts, Statutory compliance
Claire McCallion is a Senior Manager in Business Advisory, based in our Mallusk office. She brings over 18 years of experience in supporting and guiding clients through every stage of the business lifecycle- from start-up to succession planning and exit strategies. Her approach is highly client-centred, with a focus on ensuring her clients remain compliant with statutory deadlines while simultaneously offering tailored solutions that cater to the unique needs of each business. She thrives on adapting to the ever-evolving needs of her diverse client base.
In addition to her advisory role, Claire leads the Mallusk Business Advisory team. She views this leadership responsibility as a privilege, offering mentorship and fostering a positive environment for professional growth. Claire is deeply committed to helping her team gain comprehensive experience, empowering them to pursue successful, well-rounded careers. Under her leadership, the team is not only encouraged but equipped to deliver excellence.
“I believe in truly getting to know my clients—not just their businesses but also their personal goals, challenges, and aspirations. Understanding the full picture helps me offer support that’s not just reactive but proactive. There’s nothing more satisfying than forming long-lasting relationships that go beyond numbers and spreadsheets.”
“If I don’t have the answer, I’m in a fortunate position that someone else in our group is likely to have the answer for me. Being able to utilise this network is amazing as it’s like tapping into a huge tapestry of talent. We have specialists in every area, and this collaboration not only helps my personal development but also ensures that clients get the benefit of a broad and deep knowledge base.
Collaboration is key to success. AAB is continuously evolving, and I am fortunate to work alongside a diverse team of leading experts. Whatever problem a client is facing, I have confidence that someone within our group has the expertise to solve it.””
“My work ethic is strong—this is more than just a clock in and clock out 9-to-5 for me. I’ve spent many late nights in the office solving issues for clients because I want the very best for them. If it’s important to them, it’s important to me. I want my clients to know I’m in their corner. At times, this means providing honest, and sometimes tough, feedback or guidance. I approach these moments with understanding and empathy, but I’m always focused on what will truly benefit their business in the long run.”
“Digital transformation is an exciting aspect of my role. I’ve seen firsthand how it can uncover new potential in businesses—driving efficiencies, streamlining processes, and giving clients more time to focus on growth or even restore some much-needed work-life balance.
However, automation and digital tools will never fully replace the value of a trusted business advisor. Those face-to-face conversations and on-the-phone chats often reveal underlying issues that need attention—and that’s where I can make a real difference. So, while technology has enhanced what we do and it’s giving us a lot more freedoms it will never completely replace the human element.”
“Supporting family businesses can sometimes be challenging when you’re trying to balance the needs and perspectives of different family members. But that’s where independent and objective advice is critical. I see it as my role to guide and support these clients through every business cycle, always to help the family and the business succeed together so they can provide a great foundation for the generations to come.”
“After nearly two decades in the industry, I take great pride in my work, but even more so in the relationships I’ve built. I see my role as ‘joining the dots’ for clients—helping them clarify their goals and guiding them toward a solution that works. The greatest compliment I ever received came from a client who praised a staff member I had trained. He said, ‘I can tell he’s been trained by you—same work ethic, the same attention to detail, and the same sense of humour.’ Moments like that remind me why I love what I do.”