Company lists · Data refreshed September 2026

Top 25 Financial services audit companies based in Ireland

RevenueBase identified 45 financial services audit companies headquartered in Ireland as of September 2026 and tracks 1,880 professional contacts across them, including 779 with verified work emails. Dublin is the largest hub.

This list covers financial services audit companies 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 16, 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 16, 2026 86% judged on-target in blind review
45Companies
1,880Contacts tracked
779Verified emails
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The 25 largest financial services audit companies based in Ireland

Ranked by team size
Top 25 of 45 financial services audit companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to financial services audit 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDublin 2, IrelandHQ checked Sep 16, 2026501-1,000698 contacts →

Partial evidence

“Forvis Mazars in Ireland is a leading international audit, tax, advisory and consulting firm.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceDublin, IrelandHQ checked Sep 16, 2026201-500521 contacts →

Partial 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 16, 2026
3Partial evidenceLimerick, IrelandHQ checked Sep 16, 2026201-500178 contacts →

Partial 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 16, 2026
4Indirect evidenceDublin 18, IrelandHQ checked Sep 16, 202651-200119 contacts →

Indirect evidence

“One brand.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceDundalk, IrelandHQ checked Sep 16, 202651-20068 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 16, 2026
6Indirect evidenceSantry, IrelandHQ checked Sep 16, 202611-5020 contacts →

Indirect evidence

“Having the right accountant on your team is a critical part of your success and because there’re so much choice out there it can be tricky to find the one that fits exactly with…”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceEnnis, IrelandHQ checked Sep 16, 202611-5017 contacts →

Indirect evidence

“AMQ is a multidisciplinary firm of Accountants, Registered Auditors and Business Consultants.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceBlackrock, IrelandHQ checked Sep 16, 20261-1015 contacts →

Indirect evidence

“Chartered accountants, auditors and tax consultants”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceDublin 2, IrelandHQ checked Sep 16, 202611-5012 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceCork, IrelandHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceDublin 5, IrelandHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“J.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceBallina, IrelandHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“Chartered Accountants & Registered Auditors Email enquiries@omaraloftus.com”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceDublin, IrelandHQ checked Sep 16, 202611-505 contacts →

Partial evidence

“Registered Accountants and Statutory Audit Firm Our experienced team on the Swords Road provide the full range of accountancy and audit services for a plethora of individuals and…”

Source: RevenueBase Database · checked Sep 16, 2026
14Strong evidenceDublin 4, IrelandHQ checked Sep 16, 202611-505 contacts →

Strong evidence

“CLARITAS is an independent financial services consultancy providing audit, oversight, due diligence & risk advisory.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceDublin 15, IrelandHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

“MBM Chartered Accountants & Registered Auditors is a progressive firm of business advisors.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceDublin, IrelandHQ checked Sep 16, 20261-104 contacts →

Partial evidence

“TD Fitzpatrick Certified Public Accountants are an established provider of specialist audit services to regulated industries such as Credit Unions and Solicitors.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceMallow, IrelandHQ checked Sep 16, 20261-104 contacts →

Indirect evidence

“Derek Madden & Company are a firm of Certified Public Accountants and Registered Auditors with offices based in Mallow, Co.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceIrelandHQ checked Sep 16, 202611-503 contacts →

Indirect evidence

“Chartered Accountants, Registered Auditors and Business Advisors Ormsby and Rhodes is one of the longest established Accounting Firms in Ireland.”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceClaregalway, IrelandHQ checked Sep 16, 20261-103 contacts →

Partial evidence

“Cost-effective audit, advisory, taxation, accountancy, payroll and bookkeeping services.”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceLimerick, IrelandHQ checked Sep 16, 202611-502 contacts →

Partial evidence

“Mulcahy Gorman Mulcahy is an established independent audit and accountancy practice with over 45 years operating experience in Limerick, Munster and the Mid-West.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceCo Waterford, IrelandHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

“O'Dwyer & Co.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceCork, IrelandHQ checked Sep 16, 202611-501 contacts →

Indirect evidence

“We understand that knowledge is everything and we help clients benefit from it by applying knowledge and expertise from relevant disciplines within the firm and tailoring it to…”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceCork, IrelandHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

“O'Brien Neenan & Co.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceMullingar, IrelandHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceCo. Dublin, IrelandHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 45 financial services audit companies based in Ireland

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Financial services audit companies based in Ireland at a glance

As of Sep 16, 2026
41.4%Verified-email coverage
41.8Average contacts per company
11-50Median size (employees)
15.6%Largest-city concentration · Dublin
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
19
51-200
2
201-500
3
501-1,000
2

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 45 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 financial services audit 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 “financial services audit 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 financial services audit 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 financial services audit 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, 779 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 16, 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 financial services audit companies, 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 financial services audit companies are there based in Ireland?

RevenueBase identified 45 financial services audit companies 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?

Forvis Mazars In Ireland, headquartered in Ireland, tops this list with the largest team on record.

Which city has the most financial services audit companies?

Dublin leads with 7 headquartered companies, followed by Limerick (2) and Santry (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 779 verified decision-maker contacts tracked across these 45 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 16, 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.