Company lists · Data verified August 2026

Top 25 Accounting firms based in Ireland

There are 547 accounting firms headquartered in Ireland (RevenueBase, August 2026). RevenueBase tracks 14,927 professional contacts across them, including 5,827 with verified work emails and 417 with mobile numbers. Dublin is the largest hub.

This list covers accounting firms headquartered in Ireland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

547Companies
14,927Contacts tracked
5,827Verified emails
417Mobile numbers
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The 25 largest accounting firms based in Ireland

Ranked by team size
Top 25 of 547 accounting firms based in Ireland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1Kpmg IrelandCork1,001-5,0002,9921,696
2Grant Thornton IrelandNewbridge1,001-5,0002,4511,324
3Taxassist Accountantsn/a201-500707347
4Forvis Mazars In IrelandGalway501-1,00069510
5RBK Chartered Accountantsn/a201-500277138
6DM Financialn/a201-500181108
7FDC Groupn/a501-1,000179111
8Contracting PlusDublin51-20016082
9CrowleysdfkCork51-20012878
10Eisneramper Irelandn/a51-20012277
11Axon Outsourcing Limitedn/a51-2001182
12BDO LimerickLimerick51-2007657
13Baker Tilly IrelandCork51-2007542
14Strata FinancialDublin51-2007428
15HLB IrelandSandyford Industrial Estate51-2006942
16UHY Farrelly Dawe White LimitedBalbriggan51-2006848
17S&w IrelandDublin51-200673
18Kinore, Finance & Business ServicesLetterkenny51-2006143
19CSGTralee11-505826
20AmatinoCavan11-505032
21O'neill FoleyKilkenny51-2004933
22Gilroy Gannon Chartered Accountantsn/a51-2004228
23Malone & CODublin51-2003929
24Mcinerney SaundersSwords11-503826
25MBSLDundrum11-503415

Showing 25 of 547 accounting firms based in Ireland

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Accounting firms based in Ireland at a glance

As of Aug 28, 2026
1-10Median size (employees)
DublinLargest hub · 69 HQs
417Contacts with mobile numbers
26Emails re-verified in last 30 days

Companies by employee count

1-10
305
11-50
189
51-200
30
201-500
6
501-1,000
3
1,001-5,000
5

Accounting firms by metro

MetroCompanies
Accounting firms in Dublin69
Accounting firms in Cork26
Accounting firms in Limerick16
Accounting firms in Galway16
Accounting firms in Waterford9
Accounting firms in Killarney6
Accounting firms in Blackrock6

How this list was built

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion
Companies whose own business descriptions match “accounting firms”, with match quality audited by blind human judging, and headquartered in Ireland.
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
Contact records re-verify on a rolling cadence; 26 contacts on this list were re-verified in the last 30 days.
Refresh
Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many accounting firms are there based in Ireland?

There are 547 accounting firms headquartered in Ireland as of August 2026 (RevenueBase).

What is the largest company on this list?

Kpmg Ireland, headquartered in Cork, tops this list with the largest team on record.

Which city has the most accounting firms?

Dublin leads with 69 headquartered companies, followed by Cork (26) and Limerick (16).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 5,827 verified decision-maker contacts tracked across these 547 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.