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Supporting International Businesses to operate in Ireland

Outsourced accountancy, tax and local payroll support for international companies establishing and growing their presence in Ireland.

We work with companies establishing and expanding their Irish and European operations. We provide practical, on-the-ground support that enables you to grow your Irish presence, knowing you have an expert by your side.

Known as the go-to firm in this space, our team brings over 15 years’ experience supporting US and multinational organisations across different sectors including: pharmaceuticals, technology, eCommerce, professional and financial services. We are well used to working alongside global finance teams, ensuring Irish operations integrate smoothly with wider reporting and compliance requirements.

We focus on making the process straightforward. From initial setup through to ongoing compliance and reporting, we give you the local insight needed to operate and grow effectively in Ireland.

Speak to our team of experts

Outsourced Accountancy

Audit & Assurance

Payroll and Compliance

Taxation & Tax Advisory

Restructuring & Insolvency Services

Business Support Services

Digital Currency Advisory

International Business

Who We Work With

We support a wide range of international and cross-border businesses

  • US companies establishing a presence in Ireland. 
  • Multinational groups expanding into the Irish market. 
  • European companies setting up Irish subsidiaries. 
  • Companies requiring Irish-based financial and compliance support.
  • Asset Managers and Fund Structures that need an Irish presence.

Key Challenges We Help Solve

  • Navigating Irish corporation tax and international tax structuring. 
  • Setting up Irish entities and ensuring regulatory compliance. 
  • Managing cross-border reporting and group structures. 
  • Irish and European VAT and requirements.
  • Irish payroll and employee regulations, such as navigating Pension Auto Enrolment.
  • Ensuring compliance with local and international regulations. 

As your international business accountants in Dublin, we simplify complex requirements and provide clear, actionable guidance.

What Our Clients Say

“We’ve been with CAS Advisory for over ten years now. Their reliable, hands-on approach is exactly what we need on the ground in Ireland. We know the services they provide to us are in hand, with no surprises. And if we need to seek expert advice, we can get it quickly through their senior management. We’ve grown (and continue to grow) together, and I can’t recommend them enough.”
-Maximilian Harper, COO & CDO,Ceo & CDO | Zeidler Group
-Maximilian Harper, COO & CDO,
“Stephen and the team at CAS Advisory have played a pivotal role in the success of Clarity VP. Their strategic approach and consistently valuable advice have enabled us to sustain continued growth since launching in 2013. The team at CAS is truly outstanding and I look forward to continuing to work with them well into the future!”
Valerie O‘KeefeCeo | Clarity VP
Valerie O‘Keefe
With our previous firm, everything last minute. Since switching to CAS Advisory, we’ve gained a partner — responsive, knowledgeable, and always one step ahead. They understand our sector, offer solid advice, and deliver a hassle-free audit across all our companies. Stephen, Corina, and the who team there are responsive, flexible, and great to deal with- I’d be happy to recommend CAS!”
Michael MurphyFinancial Controller | Bargaintown
Michael Murphy
“This is my second scale-up with CAS Advisory. CAS are more than accountants – they’re a sounding board and a strategic partner. I value being able to pick up the phone, get practical advice, and know that they understand our long-term vision. I know they are the right partner for us as we enter this exciting next phase of expansion into the UK.”
Chris RooneyHead of Marketing and Communications | Dabbledoo
Chris Rooney
“The team at CAS are a huge support to O’HareTEP. We’ve been steadily growing over the past few years and that’s partially down to my ability to focus on business growth, while CAS Advisory looks after all my accounts, tax, payroll, and audit. They’ve been particularly valuable in helping me navigate the purchase of equipment from various locations across Europe - they’re genuine experts. I’d highly recommend CAS.”
Gavin O’HareOwner & MD | O’HareTEP
Gavin O’Hare

What Our Clients Say

“We’ve been with CAS Advisory for over ten years now. Their reliable, hands-on approach is exactly what we need on the ground in Ireland. We know the services they provide to us are in hand, with no surprises. And if we need to seek expert advice, we can get it quickly through their senior management. We’ve grown (and continue to grow) together, and I can’t recommend them enough.”
-Maximilian Harper, COO & CDO,Ceo & CDO | Zeidler Group
-Maximilian Harper, COO & CDO,
“Stephen and the team at CAS Advisory have played a pivotal role in the success of Clarity VP. Their strategic approach and consistently valuable advice have enabled us to sustain continued growth since launching in 2013. The team at CAS is truly outstanding and I look forward to continuing to work with them well into the future!”
Valerie O‘KeefeCeo | Clarity VP
Valerie O‘Keefe
With our previous firm, everything last minute. Since switching to CAS Advisory, we’ve gained a partner — responsive, knowledgeable, and always one step ahead. They understand our sector, offer solid advice, and deliver a hassle-free audit across all our companies. Stephen, Corina, and the who team there are responsive, flexible, and great to deal with- I’d be happy to recommend CAS!”
Michael MurphyFinancial Controller | Bargaintown
Michael Murphy
“This is my second scale-up with CAS Advisory. CAS are more than accountants – they’re a sounding board and a strategic partner. I value being able to pick up the phone, get practical advice, and know that they understand our long-term vision. I know they are the right partner for us as we enter this exciting next phase of expansion into the UK.”
Chris RooneyHead of Marketing and Communications | Dabbledoo
Chris Rooney
“The team at CAS are a huge support to O’HareTEP. We’ve been steadily growing over the past few years and that’s partially down to my ability to focus on business growth, while CAS Advisory looks after all my accounts, tax, payroll, and audit. They’ve been particularly valuable in helping me navigate the purchase of equipment from various locations across Europe - they’re genuine experts. I’d highly recommend CAS.”
Gavin O’HareOwner & MD | O’HareTEP
Gavin O’Hare

Why Clients Choose Us

You will work with experienced professionals who are well versed in the establishment and growth of international businesses in Ireland. 

 We provide timely support across time zones and jurisdictions.

We balance compliance with practical, commercially focused advice.

This side of the business has grown organically over the past 15 years – with companies and partners regularly referring new business. They know we are the entity they can trust. 

See our Team in Action

Expanding into Ireland? We can help.

If you are looking for international business accountants in Dublin who understand cross-border structures, Irish regulation, payroll, and global operations, we are here to support you.

Speak to our team today

Contact Us

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Touch Case Studies Supporting one of Ireland’s largest furniture retailers with business advisory, audit, and CRO compliance

About Bargaintown

Bargaintown is one of Ireland’s largest furniture retailers, with 5 stores in Dublin and a thriving online business. 100% family owned, Bargaintown has been in business over 50 years, providing cost-effective furniture and carpets for the rental and domestic markets. Known for being a ‘one-stop-shop’ in beds, mattresses, and furniture, Bargaintown offers full outfitting, installation, and assembly, as well as supply.

How CAS Advisory supports Bargaintown

  • Audit
  • Company Secretarial
  • Financial Strategy
  • Previously supported the secondment of an on-site accounts assistant.
  • Businesses with complex or cross-border tax requirements.

What do Bargaintown value most about the team at CAS Advisory?

  • Access to expertise.
  • Rapid response times.
  • Organised, ‘no surprises’ approach.
  • Strategic mindset & support.
  • Ability to deal with the complex (5 companies, mix of E-Commerce & Retail + Property Co.)
  • Advice during business change.
“With our previous firm, everything last minute. Since switching to CAS Advisory, we’ve gained a partner — responsive, knowledgeable, and always one step ahead. They understand our sector, offer solid advice, and deliver a hassle-free audit across all our companies. Stephen, Corina, and the who team there are responsive, flexible, and great to deal with- I’d be happy to recommend CAS!”
Michael Murphy - Financial Controller
Bargaintown
“With our previous firm, everything last minute. Since switching to CAS Advisory, we’ve gained a partner — responsive, knowledgeable, and always one step ahead. They understand our sector, offer solid advice, and deliver a hassle-free audit across all our companies. Stephen, Corina, and the who team there are responsive, flexible, and great to deal with- I’d be happy to recommend CAS!”
Michael Murphy - Financial Controller
Bargaintown