Company lists · Data refreshed August 2026

Top 25 Accounting outsourcing firms based in Ireland

Name: Accounting outsourcing firms based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 30, 2026 150 companies tracked

There are 150 accounting outsourcing firms headquartered in Ireland (RevenueBase, August 2026). RevenueBase tracks 1,815 professional contacts across them, including 379 with verified work emails and 62 with mobile numbers. Dublin is the largest hub.

This list covers accounting outsourcing 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 August 30, 2026.

150Companies

1,815Contacts tracked

379Verified emails

62Mobile numbers

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The 25 largest accounting outsourcing firms based in Ireland

Ranked by team size

Top 25 of 150 accounting outsourcing firms based in Ireland, ranked by team size, largest first. Data refreshed Aug 30, 2026. Evidence rates how directly each company's own description names accounting outsourcing firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts	Verified emails
1	Axon Outsourcing LimitedStrong evidence “Axon Outsourcing is an ISO 9001:2015 and ISO 27001:2013 Certified Company, GDPR compliant, ACCA approved employer and as a dedicated supplier of accounting services to accounting…” Source: company website · checked Aug 30, 2026	Ireland	51-200	118	2
2	OSKIndirect evidence “OSK have been providing quality and professional business advice to Irish businesses since 1985.” Source: company website · checked Aug 30, 2026	Ireland	11-50	77	21
3	Cronin & CompanyIndirect evidence “Cronin & Company was established in 1978 by Michael Cronin.” Source: company website · checked Aug 30, 2026	Terenure, Ireland	11-50	74	43
4	HLB IrelandIndirect evidence “HLB Ireland provide quality accountancy services and business advice to entrepreneurial and owner managed businesses.” Source: company website · checked Aug 30, 2026	Sandyford Industrial Estate, Ireland	51-200	69	42
5	Kinore, Finance & Business ServicesPartial evidence “Kinore is a multi-award-winning chartered accountancy firm offering accounting, bookkeeping, payroll, and company secretarial services.” Source: company website · checked Aug 30, 2026	Letterkenny, Ireland	51-200	61	43
6	Gilroy Gannon Chartered AccountantsPartial evidence “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 Aug 30, 2026	Ireland	51-200	42	28
7	Retail Financial Solutions RFSIndirect evidence “Retail Financial Solutions (RFS) is an Irish owned company that provides best-in-class complete financial solutions for retail clients, resulting in increased margins and cost…” Source: company website · checked Aug 30, 2026	Ireland	11-50	42	27
8	MBSLPartial evidence “MBSL is a firm of chartered accountants specialising in outsourced accounting.” Source: company website · checked Aug 30, 2026	Dundrum, Ireland	11-50	34	15
9	INTAXPartial evidence “Intax is award-winning for the best corporate service accountancy firm -Dublin (2021) and tailor accounting, taxation and corporate services to suit companies of all sizes.” Source: company website · checked Aug 30, 2026	Ireland	11-50	21	7
10	TGS Ireland - GBWIndirect evidence “TGS Ireland GBW provides Professional Services to Small and Mediun Sized Businesses.” Source: company website · checked Aug 30, 2026	Ireland	11-50	17	4
11	Finance ServicesPartial evidence “Finance Services provides a diverse range of outsourced services to clients across four core aspects of the finance function- Accounting and Bookkeeping, Payroll, Credit Control…” Source: company website · checked Aug 30, 2026	Ireland	11-50	17	3
12	AMQ Accountants & Auditors AMQIndirect evidence “AMQ is a multidisciplinary firm of Accountants, Registered Auditors and Business Consultants.” Source: company website · checked Aug 30, 2026	Ennis, Ireland	11-50	16	11
13	Solve OutsourcePartial evidence “Solve Outsource is a specialist accounting service provider.” Source: company website · checked Aug 30, 2026	Blanchardstown, Ireland	11-50	13	11
14	Sakura Business Solutions LTDIndirect evidence “We are Entrepreneur & SME Accountants and Business Advisors, and help our Clients with how to - make the RIGHT decision(s) at the RIGHT time on their business with up to date…” Source: company website · checked Aug 30, 2026	Ireland	1-10	12	6
15	Beyond AccountingIndirect evidence “Based in Dublin 2, we support Irish businesses in a wide variety of sectors - retail, tech, media and design, hospitality, non-profit, etc.” Source: company website · checked Aug 30, 2026	Ireland	11-50	11	6
16	Shelbourne AccountantsPartial evidence “First-class accounting and taxation services At Shelbourne Accountants, we provide a broad range of accountancy and bookkeeping services.” Source: company website · checked Aug 30, 2026	Dublin, Ireland	11-50	11	6
17	BORGOIndirect evidence “Ireland's overall Practice of the Year 2026 and Online Practice of the Year two years running - Irish Accountancy Awards.” Source: company website · checked Aug 30, 2026	Swords, Ireland	11-50	11	4
18	CHK PartnershipIndirect evidence “As one of Cork’s long established accountancy practices we are known for our reliable service and personal touch.” Source: company website · checked Aug 30, 2026	Cork, Ireland	11-50	9	6
19	AperioIndirect evidence “Whatever your needs aperio has you covered!” Source: company website · checked Aug 30, 2026	Ireland	11-50	6	5
20	Fortis AdvisoryPartial evidence “At Fortis Advisory we work closely with start-up, SME and corporate clients to provide accounting, taxation and advisory services on an ongoing basis.” Source: company website · checked Aug 30, 2026	Ireland	1-10	6	5
21	John Mcelhinney & Co., Chartered AccountantsIndirect evidence “John McElhinney & Co, Chartered Accountants is based in Dublin city centre adjacent to the International Financial Services Centre (IFSC), with the firms origins stretching back…” Source: company website · checked Aug 30, 2026	Dublin, Ireland	1-10	6	1
22	Dermot O'malley & COIndirect 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: company website · checked Aug 30, 2026	Dublin, Ireland	11-50	5	4
23	Patrick Mcnamara & AssociatesIndirect evidence Source: company website · checked Aug 30, 2026	Cork, Ireland	1-10	5	3
24	accountantonline.iePartial evidence “Accountant Online is a multi-award-winning chartered accountancy firm offering services in accounting, bookkeeping, payroll and company secretarial.” Source: company website · checked Aug 30, 2026	Dublin, Ireland	51-200	4	2
25	Rivercross Outsourcing PVT LTDPartial evidence “Chartered Accountants for Chartered Accountants” RiverCross Outsourcing is a cost and time efficient outsourcing setup wholly owned by the qualified Chartered Accountants having…” Source: company website · checked Aug 30, 2026	Dublin, Ireland	11-50	4	2

Showing 25 of 150 accounting outsourcing firms based in Ireland

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Accounting outsourcing firms based in Ireland at a glance

As of Aug 30, 2026

1-10Median size (employees)

DublinLargest hub · 27 HQs

62Contacts with mobile numbers

Aug 30, 2026Data refreshed

Companies by employee count

1-10

110

11-50

51-200

Accounting outsourcing firms by metro

Metro	Companies
Accounting outsourcing firms in Dublin	27
Accounting outsourcing firms in Galway	7
Accounting outsourcing firms in Cork	7
Accounting outsourcing firms in Kilkenny	4
Accounting outsourcing firms in Waterford	4
Accounting outsourcing firms in Rathcoole	2
Accounting outsourcing firms in Buncrana	2

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 accounting outsourcing 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: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies: Companies headquartered in Ireland whose own description of what they do matches “accounting outsourcing 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 accounting outsourcing 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.
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, 379 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 August 30, 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 accounting outsourcing firms are there based in Ireland?

There are 150 accounting outsourcing firms headquartered in Ireland as of August 2026 (RevenueBase).

What is the largest company on this list?

Axon Outsourcing Limited, headquartered in Ireland, tops this list with the largest team on record.

Which city has the most accounting outsourcing firms?

Dublin leads with 27 headquartered companies, followed by Galway (7) and Cork (7).

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 379 verified decision-maker contacts tracked across these 150 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.