Company lists · Data refreshed September 2026

Top 25 Biglaw firms based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 160 companies tracked

RevenueBase identified 160 biglaw firms headquartered in Ireland as of September 2026 and tracks 7,463 professional contacts across them, including 4,773 with verified work emails and 237 with mobile numbers. Dublin is the largest hub.

This list covers biglaw 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 28, 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 28, 2026 86% judged on-target in blind review

160Companies

7,463Contacts tracked

4,773Verified emails

237Mobile numbers

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The 25 largest biglaw firms based in Ireland

Ranked by team size

Top 25 of 160 biglaw firms based in Ireland, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to biglaw 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Matheson LLP	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	501-1,000	1,049 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 28, 2026
2	A&l Goodbody LLP	Indirect evidence	Dublin 1, IrelandHQ checked Sep 28, 2026	501-1,000	998 contacts →
	Indirect evidence “A&L Goodbody is one of Ireland's leading corporate law firms.” Source: RevenueBase Database · checked Sep 28, 2026
3	Arthur COX LLP	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	501-1,000	913 contacts →
	Indirect evidence “Arthur Cox LLP is one of Ireland’s leading law firms.” Source: RevenueBase Database · checked Sep 28, 2026
4	Mason Hayes & Curran LLP	Indirect evidence	Dublin 4, IrelandHQ checked Sep 28, 2026	501-1,000	666 contacts →
	Indirect evidence “Mason Hayes & Curran LLP is a leading Irish law firm based in Dublin with offices in San Francisco, New York and London, three of Ireland’s most important conduits for inward…” Source: RevenueBase Database · checked Sep 28, 2026
5	William FRY LLP	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	201-500	507 contacts →
	Indirect evidence “As one of Ireland's largest law firms, William Fry LLP offers unrivalled legal and tax expertise across the full breadth of the business sector.” Source: RevenueBase Database · checked Sep 28, 2026
6	RDJ LLP	Indirect evidence	Cork, IrelandHQ checked Sep 28, 2026	201-500	260 contacts →
	Indirect evidence “At RDJ, we combine legal insight and human intelligence to deliver long-lasting business impact.” Source: RevenueBase Database · checked Sep 28, 2026
7	Beauchamps LLP	Indirect evidence	Dublin 2, IrelandHQ checked Sep 28, 2026	201-500	205 contacts →
	Indirect evidence “We are one of Ireland’s top full service commercial law firms.” Source: RevenueBase Database · checked Sep 28, 2026
8	Philip LEE LLP	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	51-200	191 contacts →
	Indirect evidence “Philip Lee LLP is one of Ireland’s leading corporate and commercial law firms.” Source: RevenueBase Database · checked Sep 28, 2026
9	Hayes Solicitors LLP	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	51-200	165 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 28, 2026
10	Flynn O'driscoll	Indirect evidence	Dublin 2, IrelandHQ checked Sep 28, 2026	51-200	107 contacts →
	Indirect 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 28, 2026
11	Comyn Kelleher Tobin LLP	Indirect evidence	Cork, IrelandHQ checked Sep 28, 2026	51-200	66 contacts →
	Indirect 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 28, 2026
12	Ogier In Ireland	Indirect evidence	Dublin 4, IrelandHQ checked Sep 28, 2026	51-200	63 contacts →
	Indirect 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 28, 2026
13	Amoss LLP	Indirect evidence	Dublin 2, IrelandHQ checked Sep 28, 2026	51-200	60 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 28, 2026
14	MHP Sellors	Indirect evidence	Limerick, IrelandHQ checked Sep 28, 2026	11-50	52 contacts →
	Indirect 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 28, 2026
15	Bhsm LLP	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	51-200	51 contacts →
	Indirect 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 28, 2026
16	Ivor Fitzpatrick And Company Solicitors	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	11-50	44 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 28, 2026
17	Crowley Millar Solicitors LLP Incorporating J R Sweeney LLP	Indirect evidence	Dublin 1, IrelandHQ checked Sep 28, 2026	51-200	37 contacts →
	Indirect evidence “Crowley Millar is an established commercial law firm based in the International Financial Services Centre (IFSC), Dublin, Ireland.” Source: RevenueBase Database · checked Sep 28, 2026
18	Cantillons Solicitors	Indirect evidence	Cork, IrelandHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “We are a dedicated team of skilled litigation professionals.” Source: RevenueBase Database · checked Sep 28, 2026
19	Hugh J Ward & CO Solicitors	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “Hugh J.” Source: RevenueBase Database · checked Sep 28, 2026
20	Eversheds Sutherland LLP Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	201-500	34 contacts →
	Indirect evidence “Eversheds Sutherland is a full service commercial law firm with a business-like approach.” Source: RevenueBase Database · checked Sep 28, 2026
21	Gartlan Furey LLP	Indirect evidence	Dublin 2, IrelandHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Gartlan Furey deliver expert and efficient legal services to a broad range of valued clients.” Source: RevenueBase Database · checked Sep 28, 2026
22	Daniel Spring & CO	Indirect evidence	Dublin 2, IrelandHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
23	Gore & Grimes Solicitors LLP	Indirect evidence	Dublin, IrelandHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “Gore & Grimes Solicitors LLP is a full-service commercial law firm that delivers excellent Partner driven legal services tailored to companies and individuals for all their…” Source: RevenueBase Database · checked Sep 28, 2026
24	Wallace Corporate Counsel LLP	Indirect evidence	Ballsbridge, IrelandHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “Wallace Corporate Counsel LLP is a boutique law firm built on successful relationships with clients we help succeed.” Source: RevenueBase Database · checked Sep 28, 2026
25	Pierse Fitzgibbon Solicitors LLP	Indirect evidence	Listowel, IrelandHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “Pierse Fitzgibbon Solicitors LLP has been one of the leading law firms in Munster and has served the community for 45 years.” Source: RevenueBase Database · checked Sep 28, 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: biglaw firms. 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 biglaw firms.
Partial evidence: Its own public description names part of biglaw firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name biglaw firms. 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 160 biglaw firms based in Ireland

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Biglaw firms based in Ireland at a glance

As of Sep 28, 2026

64.0%Verified-email coverage

3.2%Mobile-number coverage

46.6Average contacts per company

11-50Median size (employees)

19.4%Largest-city concentration · Dublin

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 30.0d

2,4070–30

2,22131–60

12961–90

090–180

16180+

Company record updated

Median 72.0d

00–30

2,57431–60

2,20561–90

2,25790–180

427180+

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 biglaw 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 “biglaw 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 biglaw 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 biglaw 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, 4,773 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 28, 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.

Biglaw firms by metro

Biglaw firms in Dublin31

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 biglaw 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 biglaw firms are there based in Ireland?

RevenueBase identified 160 biglaw 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 biglaw firms?

Dublin leads with 31 headquartered companies, followed by Cork (22) 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 4,773 verified decision-maker contacts tracked across these 160 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 28, 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.