Your business.
Our Expertise.
You Success.
Expert accounting, tax, legal and strategic advisory for Irish businesses. Trusted by 500+ clients across Dublin, Cork, Galway and Limerick.
Clients Across Ireland
Assets Advised
Years of Experience
Clients Retention
- Regulated by the Central Bank of Ireland
- Qualified Financial Advisors (QFA)
- 5-Star Client Reviews on Google
- GDPR Compliant & Data Secure
Accounting
Tax & Legal
Financial Advisory
Business Strategy
Ireland's trusted business advisory partner
How can we help you?
Accounting & Bookkeeping
Business Advisory & Strategy
Tax Planning & Legal
Payroll & HR Compliance
Financial Advisory
Start-up & New Business
The Crestlyn difference
Local Expertise
15+ years advising Irish businesses. We know Revenue, Irish tax law and the local business landscape.
Dedicated Advisor for Life
One named advisor who truly gets to know your business — not a call centre, not a stranger.
Proactive, Not Reactive
We spot opportunities, flag risks early and help you plan ahead before problems arrive.
Full-Service Under One Roof
Accounting, tax, legal and strategy — all joined up. No need to manage multiple providers.
Clients Across Ireland
Years of Experience
Clients Retention
Getting started is simple
Free Consutlation
A 30-minute no-obligation call to understand your business and what you need.
Tailored Proposal
A clear, transparent proposal matched to your specific needs.
Smooth Onboarding
We handle the transition — up to speed on your business quickly.
Ongoing Advisory
Proactive, regular support as your business grows — always one step ahead.
What our clients say
We've got answers
No jargon, no complicated answers. Questions we hear most from Irish business owners.
Do I need an accountant if I'm a sole trader?
How much does it cost to work with Crestlyn?
Can you help with Revenue audits?
How quickly can you onboard a new client?
Do you work with businesses outside your office locations?
Latest from Crestlyn
Hello world!
Contact us
Speak to our team
Hours
Mon - Fri
9:00AM - 5PM
