Company lists · Data refreshed September 2026

Top 25 Advisory and outsourcing services based in Ireland

Name: Advisory and outsourcing services based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 838 companies tracked

RevenueBase identified 838 advisory and outsourcing services headquartered in Ireland as of September 2026 and tracks 15,963 professional contacts across them, including 7,260 with verified work emails and 477 with mobile numbers. Dublin is the largest hub.

This list covers advisory and outsourcing services 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 23, 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 23, 2026 86% judged on-target in blind review

838Companies

15,963Contacts tracked

7,260Verified emails

477Mobile numbers

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The 25 largest advisory and outsourcing services based in Ireland

Ranked by team size

Top 25 of 838 advisory and outsourcing services based in Ireland, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to advisory and outsourcing services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kpmg Ireland	Partial evidence	Dublin 2, IrelandHQ checked Sep 23, 2026	1,001-5,000	2,952 contacts →
	Partial evidence “KPMG is a leading provider of professional services, offering a range of audit, tax and advisory services to a broad range of domestic and international clients across all sectors…” Source: RevenueBase Database · checked Sep 23, 2026
2	Grant Thornton Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 23, 2026	1,001-5,000	2,374 contacts →
	Indirect evidence “In Ireland, Grant Thornton Ireland and Grant Thornton Corporate Finance Limited (and their respective subsidiary/affiliate entities) operate under an alternative practice…” Source: RevenueBase Database · checked Sep 23, 2026
3	Covalen	Indirect evidence	Dublin 4, IrelandHQ checked Sep 23, 2026	1,001-5,000	2,020 contacts →
	Indirect evidence “Hello.” Source: RevenueBase Database · checked Sep 23, 2026
4	Forvis Mazars In Ireland	Partial evidence	Dublin 2, IrelandHQ checked Sep 23, 2026	501-1,000	698 contacts →
	Partial evidence “Forvis Mazars in Ireland is a leading international audit, tax, advisory and consulting firm.” Source: RevenueBase Database · checked Sep 23, 2026
5	BDO Ireland	Strong evidence	Dublin, IrelandHQ checked Sep 23, 2026	201-500	521 contacts →
	Strong 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 23, 2026
6	Ifac Ireland	Indirect evidence	Danville Business Park, IrelandHQ checked Sep 23, 2026	201-500	379 contacts →
	Indirect evidence “Founded in 1975, Ifac is Ireland's farming, food, and agri-business specialist professional service firm.” Source: RevenueBase Database · checked Sep 23, 2026
7	RBK Chartered Accountants	Partial evidence	Athlone, IrelandHQ checked Sep 23, 2026	201-500	279 contacts →
	Partial evidence “We are one of Irelands leading business advisory and chartered accountancy firms.” Source: RevenueBase Database · checked Sep 23, 2026
8	Azets Ireland	Partial evidence	Dublin, IrelandHQ checked Sep 23, 2026	201-500	215 contacts →
	Partial evidence “Azets is an international business advisory group, with local experts in 190 locations across eight countries, backed by progressive technology.” Source: RevenueBase Database · checked Sep 23, 2026
9	Moore Ireland	Partial evidence	Dublin, IrelandHQ checked Sep 23, 2026	201-500	171 contacts →
	Partial evidence “Moore Ireland is a leading Irish provider of accountancy and advisory services to the mid-market with the infrastructural capacity of a large firm.” Source: RevenueBase Database · checked Sep 23, 2026
10	Crowleysdfk	Indirect evidence	Dublin 2, IrelandHQ checked Sep 23, 2026	51-200	129 contacts →
	Indirect evidence “At Crowleys DFK we believe in creating value for our clients.” Source: RevenueBase Database · checked Sep 23, 2026
11	Irish Pensions & Finance	Partial evidence	Co. Meath, IrelandHQ checked Sep 23, 2026	51-200	123 contacts →
	Partial evidence “Irish Pensions & Finance are one of Ireland’s leading financial advisors to the public and private sectors, providing expert advice and a range of financial products to over…” Source: RevenueBase Database · checked Sep 23, 2026
12	Infosys BPM Ireland & UK	Indirect evidence	Dublin 24, IrelandHQ checked Sep 23, 2026	5,001-10,000	120 contacts →
	Indirect evidence “Infosys BPM Ltd, the business process management subsidiary of Infosys Ltd.(NYSE: INFY), was set up in April 2002.” Source: RevenueBase Database · checked Sep 23, 2026
13	Axon Outsourcing Limited	Partial evidence	Dublin, IrelandHQ checked Sep 23, 2026	51-200	120 contacts →
	Partial 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: RevenueBase Database · checked Sep 23, 2026
14	Eisneramper Ireland	Indirect evidence	Dublin 18, IrelandHQ checked Sep 23, 2026	51-200	119 contacts →
	Indirect evidence “One brand.” Source: RevenueBase Database · checked Sep 23, 2026
15	Merc Partners	Partial evidence	Dublin, IrelandHQ checked Sep 23, 2026	11-50	89 contacts →
	Partial evidence “Following our acquisition by Spencer Stuart, a leading global executive search and leadership advisory firm, we will no longer be posting on this page as we are now fully…” Source: RevenueBase Database · checked Sep 23, 2026
16	OSK	Indirect evidence	Dublin, IrelandHQ checked Sep 23, 2026	11-50	78 contacts →
	Indirect evidence “OSK have been providing quality and professional business advice to Irish businesses since 1985.” Source: RevenueBase Database · checked Sep 23, 2026
17	BDO Limerick	Indirect evidence	Limerick, IrelandHQ checked Sep 23, 2026	51-200	75 contacts →
	Indirect evidence “BDO is the only multi-disciplined, “relationship based” accountancy firm focusing on entrepreneurial and growing businesses in Ireland.” Source: RevenueBase Database · checked Sep 23, 2026
18	Baker Tilly Ireland	Indirect evidence	Cork, IrelandHQ checked Sep 23, 2026	51-200	74 contacts →
	Indirect evidence “At Baker Tilly, we care about you and the impact you make.” Source: RevenueBase Database · checked Sep 23, 2026
19	Strata Financial	Indirect evidence	Dublin 2, IrelandHQ checked Sep 23, 2026	51-200	74 contacts →
	Indirect evidence “Strata Financial provides a full suite of all accounting, auditing, tax, management, and compliance services.” Source: RevenueBase Database · checked Sep 23, 2026
20	HLB Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 23, 2026	51-200	70 contacts →
	Indirect evidence “HLB Ireland provide quality accountancy services and business advice to entrepreneurial and owner managed businesses.” Source: RevenueBase Database · checked Sep 23, 2026
21	UHY Farrelly Dawe White Limited	Partial evidence	Dundalk, IrelandHQ checked Sep 23, 2026	51-200	68 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 23, 2026
22	S&w Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 23, 2026	51-200	66 contacts →
	Indirect evidence “With an Irish heritage dating back to 1958, we’ve built a legacy in expertise, simplicity and an unrelenting commitment to client success.” Source: RevenueBase Database · checked Sep 23, 2026
23	CSG	Indirect evidence	Tralee, IrelandHQ checked Sep 23, 2026	11-50	60 contacts →
	Indirect evidence “Welcome to CSG, a leading accountancy firm in Ireland providing professional services to businesses of all sizes.” Source: RevenueBase Database · checked Sep 23, 2026
24	Agile Executives	Indirect evidence	Dublin 4, IrelandHQ checked Sep 23, 2026	11-50	52 contacts →
	Indirect evidence “Agile Executives helps business owners achieve their goals by helping to increase turnover, improve cashflow and increase the value of the company.” Source: RevenueBase Database · checked Sep 23, 2026
25	MPK International	Partial evidence	Dublin 2, IrelandHQ checked Sep 23, 2026	51-200	50 contacts →
	Partial evidence “MPK International is a Global advisory firm that helps organizations engage in international trade, with a particular emphasis on developing countries.” Source: RevenueBase Database · checked Sep 23, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: advisory and outsourcing services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names advisory and outsourcing services.
Partial evidence: Its own public description names part of advisory and outsourcing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name advisory and outsourcing services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 838 advisory and outsourcing services based in Ireland

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Advisory and outsourcing services based in Ireland at a glance

As of Sep 23, 2026

45.5%Verified-email coverage

3.0%Mobile-number coverage

19.0Average contacts per company

1-10Median size (employees)

24.0%Largest-city concentration · Dublin

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

575

11-50

196

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 25.0d

5,5170–30

1,62931–60

8561–90

390–180

26180+

Company record updated

Median 73.0d

00–30

5,10831–60

6,74861–90

2,88490–180

1,223180+

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 advisory and outsourcing services, 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 “advisory and outsourcing services”. 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 advisory and outsourcing services), 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 advisory and outsourcing services, 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, 7,260 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 23, 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.

Advisory and outsourcing services by metro

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 advisory and outsourcing services, 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 advisory and outsourcing services are there based in Ireland?

RevenueBase identified 838 advisory and outsourcing services 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?

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

Which city has the most advisory and outsourcing services?

Dublin leads with 201 headquartered companies, followed by Cork (47) and Limerick (26).

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 7,260 verified decision-maker contacts tracked across these 838 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 23, 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.