Company lists · Data refreshed September 2026

Top 25 Accounting companies based in Ireland

Name: Accounting companies based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 7, 2026 614 companies tracked

This directory lists 614 accounting companies based in Ireland, with 12,858 business contacts and 4,355 email addresses available as of September 2026. Dublin is the single most-represented city among the companies on this list.

Accounting companies provide services such as bookkeeping, financial reporting, tax preparation, auditing, payroll support, and financial advisory work for businesses and other organizations. This list covers companies that provide accounting, bookkeeping, tax, audit, payroll, or related financial reporting services to business clients. Ranked by team size, largest first. Data current as of September 7, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 7, 2026 86% judged on-target in blind review

614Companies

12,858Contacts tracked

4,355Verified emails

372Mobile numbers

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The 25 largest accounting companies based in Ireland

Ranked by team size

Top 25 of 614 accounting companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to accounting companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Grant Thornton Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 7, 2026	1,001-5,000	2,374 contacts →
	Indirect evidence “In Ireland, Grant Thornton Ireland and Grant Thornton Corporate Finance Limited (and their respective subsidiary/affiliate entities) operate under an alternative practice…” Source: RevenueBase Database · checked Sep 7, 2026
2	Forvis Mazars In Ireland	Indirect evidence	Dublin 2, IrelandHQ checked Sep 7, 2026	501-1,000	698 contacts →
	Indirect evidence “Forvis Mazars in Ireland is a leading international audit, tax, advisory and consulting firm.” Source: RevenueBase Database · checked Sep 7, 2026
3	BDO Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 7, 2026	201-500	521 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 7, 2026
4	RBK Chartered Accountants	Indirect evidence	Athlone, IrelandHQ checked Sep 7, 2026	201-500	279 contacts →
	Indirect evidence “We are one of Irelands leading business advisory and chartered accountancy firms.” Source: RevenueBase Database · checked Sep 7, 2026
5	FDC Group	Indirect evidence	Cork, IrelandHQ checked Sep 7, 2026	501-1,000	183 contacts →
	Indirect evidence “With over 550 employees and 52 offices across Ireland, FDC achieves significant annual growth through mergers and acquisitions of smaller, local practices, as well as through…” Source: RevenueBase Database · checked Sep 7, 2026
6	DM Financial	Indirect evidence	Limerick, IrelandHQ checked Sep 7, 2026	201-500	178 contacts →
	Indirect evidence “DM is an independent financial services company headquartered in Ireland with offices in Singapore, Netherlands, the UK and the Cayman Islands.” Source: RevenueBase Database · checked Sep 7, 2026
7	Moore Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 7, 2026	201-500	171 contacts →
	Indirect evidence “Moore Ireland is a leading Irish provider of accountancy and advisory services to the mid-market with the infrastructural capacity of a large firm.” Source: RevenueBase Database · checked Sep 7, 2026
8	Contracting Plus	Indirect evidence	Dublin 2, IrelandHQ checked Sep 7, 2026	51-200	160 contacts →
	Indirect evidence “Contracting PLUS are award winning Accountants and Tax Advisors working with Professional Contractors, Freelancers, Consultants and the solo-self employed.” Source: RevenueBase Database · checked Sep 7, 2026
9	Crowleysdfk	Indirect evidence	Dublin 2, IrelandHQ checked Sep 7, 2026	51-200	129 contacts →
	Indirect evidence “At Crowleys DFK we believe in creating value for our clients.” Source: RevenueBase Database · checked Sep 7, 2026
10	Axon Outsourcing Limited	Strong evidence	Dublin, IrelandHQ checked Sep 7, 2026	51-200	120 contacts →
	Strong evidence “Axon Outsourcing is an ISO 9001:2015 and ISO 27001:2013 Certified Company, GDPR compliant, ACCA approved employer and as a dedicated supplier of accounting services to accounting…” Source: RevenueBase Database · checked Sep 7, 2026
11	Eisneramper Ireland	Indirect evidence	Dublin 18, IrelandHQ checked Sep 7, 2026	51-200	119 contacts →
	Indirect evidence “One brand.” Source: RevenueBase Database · checked Sep 7, 2026
12	FMB Chartered Accountants	Indirect evidence	Dublin 7, IrelandHQ checked Sep 7, 2026	11-50	112 contacts →
	Indirect evidence “Welcome to FMB Chartered Accountants.” Source: RevenueBase Database · checked Sep 7, 2026
13	Fenero TAX & Accounting Solutions	Indirect evidence	Dublin, IrelandHQ checked Sep 7, 2026	11-50	99 contacts →
	Indirect evidence “Fenero are multi-award winning experts in Contracting and Personal Tax Solutions for contractors, freelancers, company owners and solopreneurs.” Source: RevenueBase Database · checked Sep 7, 2026
14	OSK	Indirect evidence	Dublin, IrelandHQ checked Sep 7, 2026	11-50	78 contacts →
	Indirect evidence “OSK have been providing quality and professional business advice to Irish businesses since 1985.” Source: RevenueBase Database · checked Sep 7, 2026
15	BDO Limerick	Indirect evidence	Limerick, IrelandHQ checked Sep 7, 2026	51-200	75 contacts →
	Indirect evidence “BDO is the only multi-disciplined, “relationship based” accountancy firm focusing on entrepreneurial and growing businesses in Ireland.” Source: RevenueBase Database · checked Sep 7, 2026
16	Baker Tilly Ireland	Indirect evidence	Cork, IrelandHQ checked Sep 7, 2026	51-200	74 contacts →
	Indirect evidence “At Baker Tilly, we care about you and the impact you make.” Source: RevenueBase Database · checked Sep 7, 2026
17	Cronin & Company	Indirect evidence	Terenure, IrelandHQ checked Sep 7, 2026	11-50	74 contacts →
	Indirect evidence “Cronin & Company was established in 1978 by Michael Cronin.” Source: RevenueBase Database · checked Sep 7, 2026
18	Strata Financial	Strong evidence	Dublin 2, IrelandHQ checked Sep 7, 2026	51-200	74 contacts →
	Strong evidence “Strata Financial provides a full suite of all accounting, auditing, tax, management, and compliance services.” Source: RevenueBase Database · checked Sep 7, 2026
19	HLB Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 7, 2026	51-200	70 contacts →
	Indirect evidence “HLB Ireland provide quality accountancy services and business advice to entrepreneurial and owner managed businesses.” Source: RevenueBase Database · checked Sep 7, 2026
20	UHY Farrelly Dawe White Limited	Indirect evidence	Dundalk, IrelandHQ checked Sep 7, 2026	51-200	68 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 7, 2026
21	S&w Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 7, 2026	51-200	66 contacts →
	Indirect evidence “With an Irish heritage dating back to 1958, we’ve built a legacy in expertise, simplicity and an unrelenting commitment to client success.” Source: RevenueBase Database · checked Sep 7, 2026
22	Taxassist Accountants Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 7, 2026	11-50	62 contacts →
	Indirect evidence “TaxAssist Accountants offers an accountancy service that reflects the way we all work today.” Source: RevenueBase Database · checked Sep 7, 2026
23	Kinore, Finance & Business Services	Strong evidence	Dublin, IrelandHQ checked Sep 7, 2026	51-200	61 contacts →
	Strong evidence “Kinore is a multi-award-winning chartered accountancy firm offering accounting, bookkeeping, payroll, and company secretarial services.” Source: RevenueBase Database · checked Sep 7, 2026
24	CSG	Indirect evidence	Tralee, IrelandHQ checked Sep 7, 2026	11-50	60 contacts →
	Indirect evidence “Welcome to CSG, a leading accountancy firm in Ireland providing professional services to businesses of all sizes.” Source: RevenueBase Database · checked Sep 7, 2026
25	O'neill Foley	Indirect evidence	Kilkenny, IrelandHQ checked Sep 7, 2026	51-200	48 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 7, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: accounting companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names accounting companies.
Partial evidence: Its own public description names part of accounting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 614 accounting companies based in Ireland

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Accounting companies based in Ireland at a glance

As of Sep 7, 2026

33.9%Verified-email coverage

2.9%Mobile-number coverage

20.9Average contacts per company

1-10Median size (employees)

14.0%Largest-city concentration · Dublin

Sep 7, 2026Page data refreshed

Companies by employee count

1-10

375

11-50

194

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

4,0700–30

27331–60

161–90

090–180

11180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among accounting companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Ireland whose own description of what they do matches “accounting companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names accounting companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among accounting companies, and records with no verified work email. Companies headquartered outside Ireland are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 4,355 across the full list. 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 7, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Accounting companies by metro

Frequently asked

How many accounting companies are in the directory?

The directory contains 614 accounting companies based in Ireland as of September 2026.

How can I find contacts at accounting companies?

The directory includes 12,858 business contacts and 4,355 email addresses associated with the listed accounting companies.

Which city has the most accounting companies on the list?

Dublin is the single most-represented city among the accounting companies on this list.

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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 Smart Search, 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.