Company lists · Data refreshed September 2026

Top 25 International law firms based in Ireland

RevenueBase identified 253 international law firms headquartered in Ireland as of September 2026 and tracks 7,800 professional contacts across them, including 4,755 with verified work emails and 1,014 with mobile numbers. Dublin is the largest hub.

This list covers international law 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 4, 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 RevenueBase Smart Search rating on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
253Companies
7,800Contacts tracked
4,755Verified emails
1,014Mobile numbers
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The 25 largest international law firms based in Ireland

Ranked by team size
Top 25 of 253 international law firms based in Ireland, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to international law 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 4, 2026501-1,0001,045 contacts →

Indirect evidence

“Established in 1825 in Dublin, Ireland and with offices in Cork, London, New York, Palo Alto and San Francisco, almost 900 people work across Matheson’s six offices, including 127…”

Source: RevenueBase Database · checked Sep 4, 2026
2Partial evidenceDublin 1, IrelandHQ checked Sep 4, 2026501-1,0001,010 contacts →

Partial evidence

“A&L Goodbody is one of Ireland's leading corporate law firms.”

Source: RevenueBase Database · checked Sep 4, 2026
3Partial evidenceDublin, IrelandHQ checked Sep 4, 2026501-1,000909 contacts →

Partial evidence

“Arthur Cox LLP is one of Ireland’s leading law firms.”

Source: RevenueBase Database · checked Sep 4, 2026
4Indirect evidenceCork, IrelandHQ checked Sep 4, 2026201-500259 contacts →

Indirect evidence

“At RDJ, we combine legal insight and human intelligence to deliver long-lasting business impact.”

Source: RevenueBase Database · checked Sep 4, 2026
5Partial evidenceIrelandHQ checked Sep 4, 2026201-500203 contacts →

Partial evidence

“We are one of Ireland’s top full service commercial law firms.”

Source: RevenueBase Database · checked Sep 4, 2026
6Indirect evidenceIrelandHQ checked Sep 4, 202651-200164 contacts →

Indirect evidence

“Hayes is a leading independent Irish firm providing a comprehensive range of legal services to corporate, public, and private clients with a presence in Ireland.”

Source: RevenueBase Database · checked Sep 4, 2026
7Partial evidenceDublin 2, IrelandHQ checked Sep 4, 202651-200105 contacts →

Partial evidence

“Flynn O’Driscoll was established over 20 years ago and is now one of Ireland’s leading corporate law firms.”

Source: RevenueBase Database · checked Sep 4, 2026
8Indirect evidenceDublin, IrelandHQ checked Sep 4, 202651-20091 contacts →

Indirect evidence

“For over 50 years, our lawyers have been at the centre of corporate, insurance and public sector Ireland, advising some of the largest and most influential organisations.”

Source: RevenueBase Database · checked Sep 4, 2026
9Indirect evidenceIrelandHQ checked Sep 4, 202651-20069 contacts →

Indirect evidence

“Since the inception of our Dublin office in 2009, we have established ourselves as one of Ireland's most recognised firms within our chosen areas of expertise.”

Source: RevenueBase Database · checked Sep 4, 2026
10Partial evidenceIrelandHQ checked Sep 4, 202651-20067 contacts →

Partial evidence

“Ogier in Ireland is a full service commercial law firm, specialising in Real Estate, Dispute Resolution, Banking and Finance, Investment Funds, Tax, Employment and…”

Source: RevenueBase Database · checked Sep 4, 2026
11Partial evidenceCork, IrelandHQ checked Sep 4, 202651-20065 contacts →

Partial evidence

“Comyn Kelleher Tobin LLP (CKT) is a leading Irish law firm with offices in Cork and Dublin offering expert legal advice to commercial, public sector and private clients.”

Source: RevenueBase Database · checked Sep 4, 2026
12Partial evidenceDublin, IrelandHQ checked Sep 4, 202651-20062 contacts →

Partial evidence

“Gibson & Associates LLP are specialists in Property, Data Protection, Insurance Law/Arbitration, Personal Injury Compensation Law, Insolvency Law, and Immigration.”

Source: RevenueBase Database · checked Sep 4, 2026
13Indirect evidenceIrelandHQ checked Sep 4, 202651-20060 contacts →

Indirect evidence

“AMOSS LLP was founded in 2012 by Alan Adams, Dan Murphy, John O’Sullivan and Gavin Simons.”

Source: RevenueBase Database · checked Sep 4, 2026
14Partial evidenceLimerick, IrelandHQ checked Sep 4, 202611-5052 contacts →

Partial evidence

“MHP Sellors LLP is the largest dual-county legal team in the Mid-West region formed by merger of award winning law firms MHP Solicitors & Sellors and has the expertise and…”

Source: RevenueBase Database · checked Sep 4, 2026
15Partial evidenceDublin, IrelandHQ checked Sep 4, 202651-20051 contacts →

Partial evidence

“BHSM LLP is a dynamic, commercial law firm located in Dublin 2 with a team of 50 professionals, specialising in Corporate, Property, Banking, Employment, Litigation, Insolvency…”

Source: RevenueBase Database · checked Sep 4, 2026
16Partial evidenceDublin, IrelandHQ checked Sep 4, 202651-20049 contacts →

Partial evidence

“Whitney Moore is a full-service law firm with its priorities firmly fixed on the delivery of consistently high quality legal services.”

Source: RevenueBase Database · checked Sep 4, 2026
17Indirect evidenceSmithfield, Ireland51-20045 contacts →

Indirect evidence

“We are passionate about what we do and we believe in putting our clients first.”

Source: RevenueBase Database · checked Sep 4, 2026
18Indirect evidenceIrelandHQ checked Sep 4, 202651-20043 contacts →

Indirect evidence

“At Ivor Fitzpatrick & Company, our experienced, talented and committed professionals are passionate about providing excellent advice and encourage you to expect more.”

Source: RevenueBase Database · checked Sep 4, 2026
19Indirect evidenceDublin 6, IrelandHQ checked Sep 4, 202611-5039 contacts →

Indirect evidence

“Tomkins & Co.”

Source: RevenueBase Database · checked Sep 4, 2026
20Partial evidenceCork, IrelandHQ checked Sep 4, 202611-5038 contacts →

Partial evidence

“OFX is a long established commercial law firm that provides a full range of legal services to both national and multinational clients as well as the State sector.”

Source: RevenueBase Database · checked Sep 4, 2026
21Strong evidenceDublin 1, IrelandHQ checked Sep 4, 202651-20037 contacts →

Strong evidence

“Crowley Millar is an established commercial law firm based in the International Financial Services Centre (IFSC), Dublin, Ireland.”

Source: RevenueBase Database · checked Sep 4, 2026
22Indirect evidenceCork, IrelandHQ checked Sep 4, 202611-5037 contacts →

Indirect evidence

“We are a dedicated team of skilled litigation professionals.”

Source: RevenueBase Database · checked Sep 4, 2026
23Indirect evidenceDublin, IrelandHQ checked Sep 4, 202611-5036 contacts →

Indirect evidence

“Hugh J.”

Source: RevenueBase Database · checked Sep 4, 2026
24Partial evidenceDublin, IrelandHQ checked Sep 4, 2026201-50035 contacts →

Partial evidence

“Eversheds Sutherland is a full service commercial law firm with a business-like approach.”

Source: RevenueBase Database · checked Sep 4, 2026
25Indirect evidenceIrelandHQ checked Sep 4, 202611-5033 contacts →

Indirect evidence

“Gartlan Furey deliver expert and efficient legal services to a broad range of valued clients.”

Source: RevenueBase Database · checked Sep 4, 2026

Showing 25 of 253 international law firms based in Ireland

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International law firms based in Ireland at a glance

As of Sep 4, 2026
61.0%Verified-email coverage
13.0%Mobile-number coverage
30.8Average contacts per company
11-50Median size (employees)
19.8%Largest-city concentration · Dublin
Sep 4, 2026Page data refreshed

Companies by employee count

1-10
121
11-50
94
51-200
20
201-500
5
501-1,000
3
1,001-5,000
3

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 international law 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 “international law 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 international law 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 international law 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, 4,755 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 4, 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.

International law firms 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 international law 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 international law firms are there based in Ireland?

RevenueBase identified 253 international law 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?

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

Which city has the most international law firms?

Dublin leads with 50 headquartered companies, followed by Cork (23) and Galway (9).

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 4,755 verified decision-maker contacts tracked across these 253 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 4, 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.