Company lists · Data refreshed September 2026

Top 22 Tax planning advisors based in Ireland

RevenueBase identified 49 tax planning advisors headquartered in Ireland as of September 2026 and tracks 183 professional contacts across them, including 85 with verified work emails. Dublin is the largest hub.

This list covers tax planning advisors 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
49Companies
183Contacts tracked
85Verified emails
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The 22 largest tax planning advisors based in Ireland

Ranked by team size
Top 22 of 49 tax planning advisors 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 planning advisors: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceDublin 4, IrelandHQ checked Sep 22, 202611-5020 contacts →

Strong evidence

“Purcell McQuillan Tax Partners is a leading Irish tax advisory firm, established in Dublin in 2001.”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceDublin, IrelandHQ checked Sep 22, 202611-5011 contacts →

Partial evidence

“KTA deliver tax advice to private clients and their families on all taxation matters.”

Source: RevenueBase Database · checked Sep 22, 2026
3Partial evidenceDublin 2, IrelandHQ checked Sep 22, 202611-5010 contacts →

Partial evidence

“Best Accounting, business and tax services.”

Source: RevenueBase Database · checked Sep 22, 2026
4Strong evidenceDublin, IrelandHQ checked Sep 22, 202611-509 contacts →

Strong evidence

“Warren & Partners are a boutique Irish tax and business advisory firm, providing bespoke tax solutions for domestic and international clients operating in Ireland.”

Source: RevenueBase Database · checked Sep 22, 2026
5Strong evidenceSwords, IrelandHQ checked Sep 22, 20261-108 contacts →

Strong evidence

“Millview Advisory is a boutique tax and corporate finance advisory firm based in Dublin, Ireland.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceCork, IrelandHQ checked Sep 22, 20261-107 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
7Indirect evidenceDundalk, IrelandHQ checked Sep 22, 20261-107 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
8Partial evidenceClonmel, IrelandHQ checked Sep 22, 20261-107 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
9Partial evidenceTralee, IrelandHQ checked Sep 22, 20261-105 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
10Indirect evidenceDublin, IrelandHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“Gerard P.”

Source: RevenueBase Database · checked Sep 22, 2026
11Partial evidenceCarlow, IrelandHQ checked Sep 22, 20261-103 contacts →

Partial evidence

“We at NDTAX are a team of taxation and business advisors.”

Source: RevenueBase Database · checked Sep 22, 2026
12Strong evidenceCork, IrelandHQ checked Sep 22, 20261-103 contacts →

Strong evidence

“Established in 2009, CACM specialise in dealing with FDI companies, international clients and tax planning for clients that are based locally, nationally and internationally.”

Source: RevenueBase Database · checked Sep 22, 2026
13Strong evidenceDublin, IrelandHQ checked Sep 22, 20261-103 contacts →

Strong evidence

“Gintax provides Irish tax advisory services to companies and individuals.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceDublin, IrelandHQ checked Sep 22, 202611-503 contacts →

Indirect evidence

“Taxation advice and accounting and auditing services”

Source: RevenueBase Database · checked Sep 22, 2026
15Strong evidenceDublin 2, IrelandHQ checked Sep 22, 20261-103 contacts →

Strong evidence

“ByrneWallace Tax Advisers is comprised of lawyers, chartered accountants and tax advisers, who provide a fully integrated advisory and compliance tax service.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceWicklow, IrelandHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

“Kelly Accountants offer peace of mind to all our clients by giving them a thorough service and a personal touch while using the latest accountancy technologies.”

Source: RevenueBase Database · checked Sep 22, 2026
17Strong evidenceAthy, IrelandHQ checked Sep 22, 20261-103 contacts →

Strong evidence

“Taxkey is a specialist tax advisory practice that works closely with accountants, solicitors and legal advisors to deliver strategic and proactive tax advice to businesses and…”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceDublin, IrelandHQ checked Sep 22, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
19Strong evidenceCork, IrelandHQ checked Sep 22, 20261-101 contacts →

Strong evidence

“ODG is a specialist Business, Transaction & Tax Advisory firm founded by experienced professionals, Rory O’ Doherty & Stephen Gahan- We provide strategic financial and taxation…”

Source: RevenueBase Database · checked Sep 22, 2026
20Partial evidenceDublin 2, IrelandHQ checked Sep 22, 20261-101 contacts →

Partial evidence

“Brown and Lombard is an independent tax and accounting firm in Dublin.”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceDublin, IrelandHQ checked Sep 22, 20261-101 contacts →

Indirect evidence

“Phair and Co.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceDublin, IrelandHQ checked Sep 22, 20261-101 contacts →

Indirect evidence

“DLS Partners was founded in 2007 and has since become a thriving and successful practice.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 22 of 49 tax planning advisors based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 85 reachable decision-makers.

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Tax planning advisors based in Ireland at a glance

As of Sep 22, 2026
46.4%Verified-email coverage
3.7Average contacts per company
1-10Median size (employees)
16.3%Largest-city concentration · Dublin
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
42
11-50
7

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 49 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 planning advisors, 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 planning advisors”. 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 planning advisors), 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 planning advisors, 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, 85 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 planning advisors, 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 planning advisors are there based in Ireland?

RevenueBase identified 49 tax planning advisors 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?

Purcell Mcquillan TAX Partners, headquartered in Ballsbridge, tops this list with the largest team on record.

Which city has the most tax planning advisors?

Dublin leads with 8 headquartered companies, followed by Cork (3) and Ballsbridge (2).

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 85 verified decision-maker contacts tracked across these 49 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.