Company lists · Data refreshed September 2026
Top 21 Non-profit accounting firms based in Ireland
RevenueBase identified 37 non-profit accounting firms headquartered in Ireland as of September 2026 and tracks 2,747 professional contacts across them, including 1,390 with verified work emails and 65 with mobile numbers. Dublin is the largest hub.
This list covers non-profit 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 21 largest non-profit accounting firms based in Ireland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,374 | ||||
“In Ireland, Grant Thornton Ireland and Grant Thornton Corporate Finance Limited (and their respective subsidiary/affiliate entities) operate under an alternative practice…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 78 | ||||
“OSK have been providing quality and professional business advice to Irish businesses since 1985.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 74 | ||||
“Strata Financial provides a full suite of all accounting, auditing, tax, management, and compliance services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 41 | ||||
“Gilroy Gannon brings to its clients a unique partnership - people drawn together from the major international accounting firms, industry and small practice with the common goal of…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 20 | ||||
“The goal of DEACY GILLIGAN LTD is to provide quality professional services of the highest standard.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 18 | ||||
“TASC accountants are professionally managed firm, established in 2010 in India and started operations in Ireland in 2014.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 15 | ||||
“Chartered accountants, auditors and tax consultants” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 12 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 11 | ||||
“Cahill Trautt & Company, Chartered Accountants and Registered Auditors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 11 | ||||
“We focus on building strong relationships with our personal and business clients by getting to know them, their plans and their aspirations.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | Sheil KinnearIndirect evidence | 9 | |||
“Chartered Accountants and Registered Auditors” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 | ||||
“Chartered Accountants & Registered Auditors Email enquiries@omaraloftus.com” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | Finlay-MulliganIndirect evidence | 4 | |||
“Established in 1924, Finlay-Mulligan & Co.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | Kenny, Whelan & CompanyIndirect evidence | 3 | |||
“Kenny, Whelan was established in 1985 as a independent firm of Accountants, Statutory Auditors and Tax Advisers.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | FCC Chartered AccountantsIndirect evidence | 3 | |||
“Progressive Medium Sized Firm of Chartered Accountants and Registered Auditors” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 | ||||
“We are statutory firm of Auditors and Accountants who have traded at Kilrush Road, Ennis, Clare in the name of Carmody Kelly & Associates since January 1995.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | Barr PomeroyPartial evidence | 3 | |||
“Taxation advice and accounting and auditing services” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Joseph T. Mullen & COIndirect evidence | 3 | |||
“Certified Public Accountants & Statutory Audit Firm” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | O'dwyer & Co. Accountants, Auditors & TAX AdvisorsIndirect evidence | 2 | |||
“O'Dwyer & Co.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Hayes Coghlan & COIndirect evidence | 1 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 | ||||
“We provide a full-service product from bookkeeping, payroll, year end accounts, taxation and auditing etc.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 21 of 37 non-profit accounting firms based in Ireland
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Non-profit accounting firms based in Ireland at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 non-profit accounting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Ireland whose own description of what they do matches “non-profit accounting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among non-profit 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 an evidence 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, 1,390 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 5, 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
How many non-profit accounting firms are there based in Ireland?
RevenueBase identified 37 non-profit 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?
Grant Thornton Ireland, headquartered in Ireland, tops this list with the largest team on record.
Which city has the most non-profit accounting firms?
Dublin leads with 5 headquartered companies, followed by Galway (5) and Ballina (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 1,390 verified decision-maker contacts tracked across these 37 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 5, 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 SmartSearch, 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.
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