Company lists · Data refreshed September 2026

Top 25 Insolvency accounting firms based in Ireland

RevenueBase identified 103 insolvency accounting firms headquartered in Ireland as of September 2026 and tracks 800 professional contacts across them, including 328 with verified work emails. Dublin is the largest hub.

This list covers insolvency accounting firms 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 28, 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 28, 2026 86% judged on-target in blind review
103Companies
800Contacts tracked
328Verified emails
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The 25 largest insolvency accounting firms based in Ireland

Ranked by team size
Top 25 of 103 insolvency accounting firms based in Ireland, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to insolvency accounting firms: 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
1Indirect evidenceDublin, IrelandHQ checked Sep 28, 202611-5078 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceKilkenny, IrelandHQ checked Sep 28, 202651-20048 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 28, 2026
3Indirect evidenceDublin 2, IrelandHQ checked Sep 28, 202611-5042 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceSwords, IrelandHQ checked Sep 28, 202611-5030 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceDublin 2, IrelandHQ checked Sep 28, 202611-5027 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
6Strong evidenceDublin 2, IrelandHQ checked Sep 28, 202611-5023 contacts →

Strong evidence

“We are specialists in Personal Insolvency, Forensic Accounting, Business Valuations, and Corporate Finance.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceDublin, IrelandHQ checked Sep 28, 202611-5022 contacts →

Indirect evidence

“Medium Practice of the Year - Irish Accountancy Awards 2025 Merry Mullen are a full-service Firm of Chartered Accountant and Chartered Tax Advisers (CTA) based in Dublin 2.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceGalway, IrelandHQ checked Sep 28, 202611-5020 contacts →

Indirect evidence

“The goal of DEACY GILLIGAN LTD is to provide quality professional services of the highest standard.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceLimerick, IrelandHQ checked Sep 28, 202651-20019 contacts →

Indirect evidence

“McKeogh Gallagher Ryan - a Xeinadin Company was established in Limerick in 2012 by three experienced financial professionals.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceBlanchardstown, IrelandHQ checked Sep 28, 202611-5018 contacts →

Indirect evidence

“TASC accountants are professionally managed firm, established in 2010 in India and started operations in Ireland in 2014.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceBlanchardstown, IrelandHQ checked Sep 28, 20261-1017 contacts →

Indirect evidence

“We understand businesses today need support and our qualified and experienced team is here to provide it.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceRanelagh, IrelandHQ checked Sep 28, 202611-5017 contacts →

Indirect evidence

“TGS Ireland GBW provides Professional Services to Small and Mediun Sized Businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceDublin, IrelandHQ checked Sep 28, 202611-5016 contacts →

Indirect evidence

“Leahy O'Riordan Chartered Accountants, established in 1986, is a leading accountancy firm in Dublin, providing a comprehensive range of accountancy and tax services, as well as…”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceCork, IrelandHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“Partnering with us at Paul O’Donovan & Associates allows you time to focus on your business while we provide the Accountancy solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceDublin 2, IrelandHQ checked Sep 28, 202611-5012 contacts →

Indirect evidence

“Copsey Murray is a firm of Chartered Accountants and Registered Auditors.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceDublin, IrelandHQ checked Sep 28, 202611-5012 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 28, 2026
17Indirect evidenceCork, IrelandHQ checked Sep 28, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceBallsbridge, IrelandHQ checked Sep 28, 202611-5010 contacts →

Indirect evidence

“Tynan Dillon was founded in 1952 by Pat Tynan and Sean Dillon.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceDublin, IrelandHQ checked Sep 28, 202611-509 contacts →

Indirect evidence

“I manage the firm with my partner Eoin O'Riordan.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceCo. Louth, IrelandHQ checked Sep 28, 202611-508 contacts →

Partial evidence

“An established 4 partner Accountancy Practice operating for more than 35 years offering audit, accounting and taxation compliance services in addition to business advisory…”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceLimerick, IrelandHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

“We are a progressive firm of Accountants and Business Advisors based in Limerick who pride orselves on a friendly and cost efficient service.We also specialise in Corporate…”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceDublin 4, IrelandHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“Based in Dublin City Centre - JW Accountants is a Corporate Recovery, Insolvency and Litigation Support specialist accountancy firm.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceHarolds Cross, IrelandHQ checked Sep 28, 202611-506 contacts →

Indirect evidence

“Grant Sugrue & Co.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceDublin, IrelandHQ checked Sep 28, 20261-106 contacts →

Indirect evidence

“McCarthy Walsh is a progressive accountancy and business advisory firm established in 2010.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceDublin 3, IrelandHQ checked Sep 28, 20261-106 contacts →

Partial evidence

“ITAS Accounting is a firm of accountants, tax advisors and registered auditors.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 103 insolvency accounting firms based in Ireland

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Insolvency accounting firms based in Ireland at a glance

As of Sep 28, 2026
41.0%Verified-email coverage
7.8Average contacts per company
1-10Median size (employees)
15.5%Largest-city concentration · Dublin
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
58
11-50
36
51-200
8

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 103 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 insolvency accounting firms, 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 “insolvency accounting firms”. 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 insolvency accounting firms), 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 insolvency accounting firms, 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, 328 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 28, 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 insolvency accounting firms, 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 insolvency accounting firms are there based in Ireland?

RevenueBase identified 103 insolvency accounting firms 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?

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

Which city has the most insolvency accounting firms?

Dublin leads with 16 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 328 verified decision-maker contacts tracked across these 103 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 28, 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.