Company lists · Data refreshed September 2026

Top 25 Tax filing services based in Ireland

Name: Tax filing services based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 94 companies tracked

RevenueBase identified 94 tax filing services headquartered in Ireland as of September 2026 and tracks 641 professional contacts across them, including 319 with verified work emails. Dublin is the largest hub.

This list covers tax filing services headquartered in Ireland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 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 22, 2026 86% judged on-target in blind review

94Companies

641Contacts tracked

319Verified emails

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The 25 largest tax filing services based in Ireland

Ranked by team size

Top 25 of 94 tax filing services based in Ireland, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to tax filing services: 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	Fenero TAX & Accounting Solutions	Partial evidence	Dublin, IrelandHQ checked Sep 22, 2026	11-50	99 contacts →
	Partial 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 22, 2026
2	Strata Financial	Partial evidence	Dublin 2, IrelandHQ checked Sep 22, 2026	51-200	74 contacts →
	Partial evidence “Strata Financial provides a full suite of all accounting, auditing, tax, management, and compliance services.” Source: RevenueBase Database · checked Sep 22, 2026
3	UHY Farrelly Dawe White Limited	Partial evidence	Dundalk, IrelandHQ checked Sep 22, 2026	51-200	68 contacts →
	Partial 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 22, 2026
4	Malone & CO	Indirect evidence	Dublin, IrelandHQ checked Sep 22, 2026	51-200	40 contacts →
	Indirect evidence “At Malone & Co, we go beyond the numbers.” Source: RevenueBase Database · checked Sep 22, 2026
5	HDS	Indirect evidence	Limerick, IrelandHQ checked Sep 22, 2026	11-50	23 contacts →
	Indirect evidence “HDS, founded in 2004, is an established practice of professional advisors with offices at RiverPoint, one of Limerick’s most recognisable and prestigious landmark buildings.” Source: RevenueBase Database · checked Sep 22, 2026
6	Purcell Mcquillan TAX Partners	Partial evidence	Dublin 4, IrelandHQ checked Sep 22, 2026	11-50	20 contacts →
	Partial evidence “Purcell McQuillan Tax Partners is a leading Irish tax advisory firm, established in Dublin in 2001.” Source: RevenueBase Database · checked Sep 22, 2026
7	Lillis Egan Obeirn & CO	Indirect evidence	Galway City, IrelandHQ checked Sep 22, 2026	11-50	18 contacts →
	Indirect evidence “Since our formation in 1984, we have developed to be a top practice located in Galway.” Source: RevenueBase Database · checked Sep 22, 2026
8	Stephens Cooke & Associates	Indirect evidence	Mullingar, IrelandHQ checked Sep 22, 2026	11-50	15 contacts →
	Indirect evidence “At Stephens Cooke & Associates we are committed to providing a comprehensive range of services to ensure that we are not simply a service provider, but a firm that work in…” Source: RevenueBase Database · checked Sep 22, 2026
9	Lewis & CO Chartered Accountants	Partial evidence	Blackrock, IrelandHQ checked Sep 22, 2026	1-10	15 contacts →
	Partial evidence “Chartered accountants, auditors and tax consultants” Source: RevenueBase Database · checked Sep 22, 2026
10	Mcmahon Auditors Accountants	Partial evidence	Kildare Town, IrelandHQ checked Sep 22, 2026	11-50	13 contacts →
	Partial evidence “McMahon Auditors Accountants is a well-established firm of accountants, tax advisors, and business consultants, proudly serving clients from our offices in Kildare, Naas, and…” Source: RevenueBase Database · checked Sep 22, 2026
11	Hyland Johnson Keane	Indirect evidence	Cork, IrelandHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “Hyland Johnson Keane is a full-service accounting, audit and taxation company in Cork catering to all size businesses.” Source: RevenueBase Database · checked Sep 22, 2026
12	Cusack & CO	Partial evidence	Dublin, IrelandHQ checked Sep 22, 2026	11-50	12 contacts →
	Partial evidence “Cusack & Co offers both traditional accounting and tax services as well as value added solutions to local and international companies, individuals, self-employed persons and…” Source: RevenueBase Database · checked Sep 22, 2026
13	Visio Advisory	Indirect evidence	Sutton, IrelandHQ checked Sep 22, 2026	11-50	11 contacts →
	Indirect evidence “We focus on building strong relationships with our personal and business clients by getting to know them, their plans and their aspirations.” Source: RevenueBase Database · checked Sep 22, 2026
14	Greavy And CO Accountants	Partial evidence	Dublin 2, IrelandHQ checked Sep 22, 2026	11-50	10 contacts →
	Partial evidence “Best Accounting, business and tax services.” Source: RevenueBase Database · checked Sep 22, 2026
15	GSW Accountants & TAX Advisors	Indirect evidence	Blessington, IrelandHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “We provide a comprehensive range of professional advisory services and set ourselves apart with a motivated, ambitious and friendly team.” Source: RevenueBase Database · checked Sep 22, 2026
16	Fintech PRO	Partial evidence	Dublin, IrelandHQ checked Sep 22, 2026	1-10	8 contacts →
	Partial evidence “Qualified Accountants, Business Advisors, and Management Consultants enabling Businesses Grow by helping them with Accounting and Tax compliance needs.” Source: RevenueBase Database · checked Sep 22, 2026
17	Mcavoy & Associates	Indirect evidence	Cork, IrelandHQ checked Sep 22, 2026	1-10	7 contacts →
	Indirect evidence “McAvoy & Associates is a multi-faceted consulting firm which provides its clients with leading-edge expertise in the fields of taxation, business advice, accounting and financial…” Source: RevenueBase Database · checked Sep 22, 2026
18	John O'callaghan LTD	Indirect evidence	Dundalk, IrelandHQ checked Sep 22, 2026	1-10	7 contacts →
	Indirect evidence “Since our establishment in 1983 we have always believed that our priority is making your business operate as efficiently as possible both from an operational and taxation…” Source: RevenueBase Database · checked Sep 22, 2026
19	Lane O' Connor Accountants & TAX Consultants	Partial evidence	Clonmel, IrelandHQ checked Sep 22, 2026	1-10	7 contacts →
	Partial evidence “At Lane O’ Connor Accountants & Tax Consultants, we guarantee high quality service and dedicated customer care at costs you can afford.” Source: RevenueBase Database · checked Sep 22, 2026
20	Itas Accounting	Partial evidence	Dublin 3, IrelandHQ checked Sep 22, 2026	1-10	6 contacts →
	Partial evidence “ITAS Accounting is a firm of accountants, tax advisors and registered auditors.” Source: RevenueBase Database · checked Sep 22, 2026
21	ADW Accountants & Business Advisors	Indirect evidence	Dublin, IrelandHQ checked Sep 22, 2026	1-10	6 contacts →
	Indirect evidence “Better Accounting.” Source: RevenueBase Database · checked Sep 22, 2026
22	PSC Taxation Services	Partial evidence	Tralee, IrelandHQ checked Sep 22, 2026	1-10	5 contacts →
	Partial evidence “PSC Taxation Services offers tax consultancy services and solutions to a wide range of personal and corporate clients.” Source: RevenueBase Database · checked Sep 22, 2026
23	Thos. Goodall & SON	Indirect evidence	Cork, IrelandHQ checked Sep 22, 2026	11-50	5 contacts →
	Indirect evidence “Cork based Accountancy Office, providing Audit, Accountancy and Taxation Services” Source: RevenueBase Database · checked Sep 22, 2026
24	H&r Block Ireland	Indirect evidence	Dublin City, IrelandHQ checked Sep 22, 2026	11-50	4 contacts →
	Indirect evidence “At H&R Block we believe passion and creativity can bring about innovation.” Source: RevenueBase Database · checked Sep 22, 2026
25	Duffy Burke & CO	Partial evidence	Galway, IrelandHQ checked Sep 22, 2026	1-10	4 contacts →
	Partial evidence “Audit Accounts and Tax practice” Source: RevenueBase Database · checked Sep 22, 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: tax filing services. 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 tax filing services.
Partial evidence: Its own public description names part of tax filing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name tax filing services. 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 94 tax filing services based in Ireland

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Tax filing services based in Ireland at a glance

As of Sep 22, 2026

49.8%Verified-email coverage

6.8Average contacts per company

1-10Median size (employees)

21.3%Largest-city concentration · Dublin

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 94 companies.

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 tax filing services, 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 “tax filing services”. 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 tax filing services), 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 tax filing services, 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, 319 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 22, 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.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its 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 the category the list is about. Each row is rated strong evidence when the company's own description names tax filing services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many tax filing services are there based in Ireland?

RevenueBase identified 94 tax filing services headquartered in Ireland as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Fenero TAX & Accounting Solutions, headquartered in Tyrrelstown, tops this list with the largest team on record.

Which city has the most tax filing services?

Dublin leads with 20 headquartered companies, followed by Galway (5) and Cork (4).

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 319 verified decision-maker contacts tracked across these 94 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 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 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.