Company lists · Data refreshed September 2026

Top 25 Top accounting firms based in Ireland

RevenueBase identified 236 company matches for top accounting firms associated with Ireland as of September 2026 and tracks 11,970 professional contacts across them, including 4,543 with verified work emails. Dublin is the largest hub.

This list covers company matches for top accounting firms associated with Ireland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
236Companies
11,970Contacts tracked
4,543Verified emails
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The 25 largest top accounting firms based in Ireland

Ranked by team size
Top 25 of 236 company matches for top accounting firms based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDublin 2, IrelandHQ recorded Sep 21, 20261,001-5,0002,952 contacts →

Exact match

“KPMG is a leading provider of professional services, offering a range of audit, tax and advisory services to a broad range of domestic and international clients across all sectors…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchDublin, IrelandHQ recorded Sep 21, 20261,001-5,0002,374 contacts →

Exact match

“In Ireland, Grant Thornton Ireland and Grant Thornton Corporate Finance Limited (and their respective subsidiary/affiliate entities) operate under an alternative practice…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchDublin 2, IrelandHQ recorded Sep 21, 2026501-1,000698 contacts →

Exact match

“Forvis Mazars in Ireland is a leading international audit, tax, advisory and consulting firm.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchDublin, IrelandHQ recorded Sep 21, 2026201-500521 contacts →

Exact match

“BDO Ireland LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchDublin 2, IrelandHQ recorded Sep 21, 202651-200129 contacts →

Exact match

“At Crowleys DFK we believe in creating value for our clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchDublin 18, IrelandHQ recorded Sep 21, 202651-200119 contacts →

Exact match

“One brand.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchDublin, IrelandHQ recorded Sep 21, 202611-5078 contacts →

Exact match

“OSK have been providing quality and professional business advice to Irish businesses since 1985.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchLimerick, IrelandHQ recorded Sep 21, 202651-20075 contacts →

Exact match

“BDO is the only multi-disciplined, “relationship based” accountancy firm focusing on entrepreneurial and growing businesses in Ireland.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchCork, IrelandHQ recorded Sep 21, 202651-20074 contacts →

Exact match

“At Baker Tilly, we care about you and the impact you make.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchTerenure, IrelandHQ recorded Sep 21, 202611-5074 contacts →

Exact match

“Cronin & Company was established in 1978 by Michael Cronin.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchDublin 2, IrelandHQ recorded Sep 21, 202651-20074 contacts →

Exact match

“Strata Financial provides a full suite of all accounting, auditing, tax, management, and compliance services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchDublin, IrelandHQ recorded Sep 21, 202651-20070 contacts →

Exact match

“HLB Ireland provide quality accountancy services and business advice to entrepreneurial and owner managed businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchDundalk, IrelandHQ recorded Sep 21, 202651-20068 contacts →

Exact match

“UHY FDW is a leading audit, tax and advisory practice in Ireland, driven to achieve a better future together, for our people, our clients and our communities.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchDublin, IrelandHQ recorded Sep 21, 202651-20066 contacts →

Exact match

“With an Irish heritage dating back to 1958, we’ve built a legacy in expertise, simplicity and an unrelenting commitment to client success.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchTralee, IrelandHQ recorded Sep 21, 202611-5060 contacts →

Exact match

“Welcome to CSG, a leading accountancy firm in Ireland providing professional services to businesses of all sizes.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchKilkenny, IrelandHQ recorded Sep 21, 202651-20048 contacts →

Exact match

“O’Neill Foley is the largest independent firm of Chartered Accountants in the South East of Ireland and we’ve been helping businesses grow since 1958.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchDublin 2, IrelandHQ recorded Sep 21, 202611-5045 contacts →

Exact match

“Based in Dublin, Walsh O’Brien Harnett is one of Ireland’s top 20 professional advisory firms offering a wide range of accounting, audit, tax, advisory and corporate services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchDublin 2, IrelandHQ recorded Sep 21, 202611-5042 contacts →

Exact match

“Noone Casey is a Dublin based Accountancy & Advisory firm.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchSligo, IrelandHQ recorded Sep 21, 202651-20041 contacts →

Exact match

“Gilroy Gannon brings to its clients a unique partnership - people drawn together from the major international accounting firms, industry and small practice with the common goal of…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchSwords, IrelandHQ recorded Sep 21, 202611-5030 contacts →

Exact match

“McInerney Saunders is a firm of Chartered Accountants & Business Advisers with offices in Swords, North County Dublin, adjacent to Dublin's international airport, which is part of…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchRathfarnham, IrelandHQ recorded Sep 21, 20261-1026 contacts →

Exact match

“Leonard & Company of Rathfarnham, Dundrum, South Dublin, is a multidisciplinary professional services accountancy practice that is committed to providing a comprehensive range of…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchTullamore, IrelandHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“BCA provide a full range of proactive financial, taxation, business advisory, audit, company secretarial and commercial services to our broad range of clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchDublin, IrelandHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“Welcome to BFCD, where your business journey becomes our shared mission.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchKells, IrelandHQ recorded Sep 21, 202611-5024 contacts →

Exact match

“At Woods and Partners, our experience is reflected in the services we offer.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchWaterford, IrelandHQ recorded Sep 21, 202611-5023 contacts →

Exact match

“We are a firm of Accountants, Taxation Consultants and Business Advisors based in Waterford.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 236 top accounting firms based in Ireland

See the full list, filter by size, metro and specialty, and access 4,543 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Top accounting firms based in Ireland at a glance

As of Sep 21, 2026
38.0%Verified-email coverage
50.7Average contacts per company
11-50Median size (employees)
12.3%Largest-city concentration · Dublin
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
112
11-50
92
51-200
18
201-500
5
501-1,000
2
1,001-5,000
5

Email recency for this list is measured worldwide rather than for Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 236 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Ireland whose business descriptions match “top accounting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 4,543 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “top accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many top accounting firms are there based in Ireland?

RevenueBase identified 236 company matches for top accounting firms associated with Ireland as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Kpmg Ireland tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most top accounting firms?

Dublin leads with 29 company records, followed by Limerick (10) and Cork (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 4,543 professional contacts with verified work emails tracked across these 236 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.