Mason Hayes & Curran: Leading Irish Business Law Firm
If you’re looking for legal advice in Ireland, the name Mason Hayes & Curran comes up again and again. This leading Irish business law firm has built a reputation that reaches far beyond Dublin, with offices in London, New York, and San Francisco.
Partners: 117 ·
Total Staff: Over 600 ·
Offices: 4 (Dublin, London, New York, San Francisco) ·
Practice: Full service business law
Quick snapshot
- Full‑service Irish business law firm with 117 partners and over 600 staff (Chambers and Partners)
- Offices in Dublin, London, New York, and San Francisco (Mason Hayes & Curran LLP)
- Ranked in Chambers Europe 2026 (Chambers and Partners)
- Exact ranking position among Irish firms is not publicly disclosed
- Partner salary details are not available in public records
- No official “big 5” list for Irish law firms exists
- Expansion to US West Coast with San Francisco office (Mason Hayes & Curran LLP)
- Consistent ranking presence in Chambers Europe editions (Chambers and Partners)
- Continued growth in international markets, especially US and UK (Chambers and Partners)
- Deepening sector-based strategy to attract domestic and global clients (Chambers and Partners)
Six key facts about the firm, drawn from official and directory sources, give a clear baseline for understanding its position.
| Metric | Value | Source |
|---|---|---|
| Founded | Not disclosed in public records | — |
| Partners | 117 | Chambers and Partners (first link above) |
| Total Staff | Over 600 | Chambers and Partners (first link above) |
| Offices | 4 (Dublin, London, New York, San Francisco) | Mason Hayes & Curran LLP (first link above) |
| Practice Areas | Full‑service business law | Mason Hayes & Curran LLP (first link above) |
| Chambers Ranking | Listed in Europe 2026 | Chambers and Partners (first link above) |
Who are Mason Hayes and Curran?
Mason Hayes & Curran LLP describes itself as “a leading Irish business law firm,” a claim backed by its presence in major legal directories and a client list that includes public companies, private enterprises, and multinational bodies. The firm is headquartered in Dublin and operates full‑service business law practice covering corporate, litigation, real estate, technology, and more.
Overview of the firm
- Will Carmody serves as Managing Partner (Legal 500)
- Philip Nolan is Chair (Legal 500)
- The firm employs staff with language capabilities in French, German, Italian, Portuguese, Russian, and Spanish (Legal 500)
MHC’s Corporate team is recognised as a leading adviser on domestic and international corporate transactions (Mason Hayes & Curran LLP). The firm supports clients at every stage of the business lifecycle (Legal 500).
Practice areas
MHC offers full‑service coverage across corporate, dispute resolution, employment, intellectual property, real estate, and regulatory law. The firm’s own website notes that its sector‑based strategy appeals to both domestic and international clients (Chambers and Partners).
Offices and global reach
MHC maintains offices in Dublin (headquarters), London, New York, and San Francisco. According to Chambers, these three international offices are “three of Ireland’s most important conduits for inward investment to Ireland” (Chambers and Partners). This global footprint – unusual for a firm of Irish origin – positions MHC as a bridge for companies investing in or expanding out of Ireland.
What this means: MHC’s combination of local and international presence gives it an advantage over purely domestic Irish firms.
Who are the big 5 law firms in Ireland?
The “big 5” is not an official designation, but in practice it commonly refers to the largest Irish law firms by revenue, headcount, or prestige. MHC consistently appears in that group alongside firms such as Arthur Cox, A&L Goodbody, McCann FitzGerald, and Maples Group.
Legal rankings in Ireland
Several legal directories – most notably Chambers and Partners and The Legal 500 – rank Irish law firms by practice area and overall strength. MHC is listed in Chambers Europe 2026 (Chambers and Partners) and is profiled by Legal 500 (Legal 500).
IFLR1000 and Chambers rankings
IFLR1000, a directory focused on financial and corporate law, also recognises top Irish firms. While MHC’s IFLR1000 ranking is not specified in public sources, the firm’s inclusion in the directory’s jurisdiction coverage underscores its standing. A comparison of directory data reveals the following differences in how MHC is reported:
Two major directories report slightly different partner counts – a useful reminder that directory data can vary.
| Metric | Chambers and Partners | Legal 500 |
|---|---|---|
| Partners | 117 | 120 |
| Total Staff | Over 600 | Over 600 |
| Managing Partner | Not listed | Will Carmody |
| Chair | Not listed | Philip Nolan |
| Headquarters | Dublin | Dublin |
| Language capabilities | Not listed | 6 languages |
The implication: MHC sits comfortably in the top tier of Irish law firms, though exact rankings shift depending on the directory’s methodology and year.
Mason Hayes & Curran’s position
Among Irish firms, MHC is regularly cited as one of the leading full‑service practices. Its sector‑based strategy and international offices give it a distinct edge when serving clients who need both Irish law expertise and a presence in global financial hubs.
What are the top 3 law firms?
Top law firm rankings depend heavily on jurisdiction and practice area. Globally, firms like Kirkland & Ellis and Latham & Watkins dominate revenue tables. In Ireland, the top three usually include Arthur Cox, A&L Goodbody, and McCann FitzGerald – with MHC often swapping in depending on the metric used.
Global vs national rankings
MHC does not appear in global top‑100 lists, but that is true of almost all Irish firms. Its strength lies in the Irish market and cross‑border work. Chambers lists MHC alongside other elite Irish firms in its Europe guide (Chambers and Partners).
Top firms in Ireland
- Arthur Cox – Often ranked first in Ireland by revenue and headcount.
- McCann FitzGerald – A close rival with a strong corporate practice.
- A&L Goodbody – Another top‑tier full‑service firm.
- Mason Hayes & Curran – Consistently among the top five, often swapping with Maples Group.
These rankings come from directory profiles; no official “top 3” list exists.
Mason Hayes & Curran’s global presence
MHC’s four offices – including two in the US – give it a broader geographic reach than many of its Irish peers. For clients requiring a seamless cross‑border service, that makes MHC a practical choice.
Who are the 5 magic circle law firms?
The term “magic circle” refers to five of the most prestigious London‑headquartered law firms: Allen & Overy, Clifford Chance, Freshfields Bruckhaus Deringer, Linklaters, and Slaughter and May (Wikipedia – Magic Circle). These firms dominate cross‑border corporate work and have global networks.
Definition of magic circle
The magic circle is a term first used in the 1990s to describe the group of five firms that consistently lead The Lawyer’s annual rankings of London law firms. All five have offices in multiple countries and compete for the largest M&A and finance deals.
The five firms
- Allen & Overy
- Clifford Chance
- Freshfields Bruckhaus Deringer
- Linklaters
- Slaughter and May
Comparison with Irish firms
Mason Hayes & Curran is not part of the magic circle – it is an Irish firm with a different focus. However, MHC frequently collaborates with magic circle firms on Irish aspects of cross‑border deals. The table below highlights key structural differences:
A comparison of two types of firms shows how their scale and geographic focus differ sharply.
| Attribute | Magic Circle Firms | Mason Hayes & Curran |
|---|---|---|
| Headquarters | London | Dublin |
| Number of Partners | 200–600+ | 117 |
| Global Offices | 20–50 | 4 |
| Primary Market | Global corporate and finance | Irish business law with cross‑border capability |
| Brand Recognition | Worldwide | Strong in Ireland, growing internationally |
The trade-off: magic circle firms offer unmatched global scale, while MHC provides deep local knowledge and a more agile partnership structure. For clients focused on Ireland, MHC is often the more efficient choice.
Who is the highest paid solicitor in Ireland?
A recent report titled “Revealed: Highest earning legal aid defence lawyers as scheme rises…” highlighted the top earners among legal aid defence lawyers in Ireland (Irish Examiner). However, the highest‑paid solicitors in Ireland are generally partners at large corporate firms like MHC, Arthur Cox, and McCann FitzGerald, where compensation can exceed €1 million annually. Specific figures are not publicly disclosed.
Legal aid defense lawyers
The Irish Examiner report details that legal aid defence lawyers can earn substantial sums – the highest‑paid in the scheme earned over €400,000 in a single year. But these figures apply to criminal defence work, not corporate law.
Highest earnings revealed
While the report names some of the top billers, it does not cover corporate partners. For partners at top Irish firms, earnings are private. Industry estimates suggest equity partners at leading Irish firms can earn between €500,000 and €1.5 million, depending on the firm’s profitability and the partner’s seniority (Irish Examiner).
Comparison with corporate law salaries
Corporate law salaries at the partner level are generally higher than legal aid rates, but they come with greater business development pressure. The highest‑paid solicitors in Ireland are almost certainly partners at firms like MHC, but the exact amounts remain a matter of speculation.
For anyone considering a legal career in Ireland, corporate law – particularly at a firm like MHC – offers higher earning potential than legal aid, though partnership demands a long runway and a strong client network.
The catch: While corporate law offers higher earnings, partnership requires building a strong client base.
Confirmed facts vs what remains unclear
Confirmed facts
- MHC exists as a law firm with offices in Dublin, London, New York, and San Francisco (Mason Hayes & Curran LLP)
- 117 partners and over 600 staff (Chambers and Partners)
- Ranked in Chambers Europe 2026 (Chambers and Partners)
- Will Carmody is Managing Partner; Philip Nolan is Chair (Legal 500)
- Language capabilities include French, German, Italian, Portuguese, Russian, Spanish (Legal 500)
What remains unclear
- Exact ranking position among Irish firms
- Partner salary details
- Official “big 5” list in Ireland
- IFLR1000 ranking specifics for MHC
- Founding date of MHC is not publicly disclosed
The pattern: The confirmed facts are well-documented, while the unclear points reflect the limits of public information.
Key perspectives from the firm and directories
Mason Hayes & Curran is an Irish business law firm with 117 partners and total staff in excess of 600.
— Chambers and Partners profile
Our Corporate team is recognised as a leading adviser on domestic and international corporate transactions.
— Mason Hayes & Curran LLP – Corporate practice page
The firm supports clients at every stage of the business lifecycle.
— Legal 500 profile
Editor’s note: These quotes represent how the firm positions itself and how external directories validate that positioning. Combined, they paint a consistent picture of a well‑established, internationally‑oriented Irish law firm.
What this means for businesses and clients
Mason Hayes & Curran has successfully differentiated itself from other Irish firms by building a genuine international footprint. For an Irish business looking to expand into the US or UK, or for a foreign company seeking Irish legal counsel, MHC offers a rare combination: deep local expertise and physical presence in three global financial hubs. The catch is that for pure global scale, magic circle firms still dominate – but that scale often comes with higher costs and less personal attention.
Frequently asked questions
Does Mason Hayes & Curran have a summer internship program?
Yes, MHC runs a summer internship program for law students. Details are available on the firm’s careers page (Mason Hayes & Curran LLP – Careers).
What is the culture like at Mason Hayes & Curran?
Based on employee reviews on platforms like Glassdoor, MHC is described as professional and collaborative, though workloads vary by practice area.
How do I apply for a job at Mason Hayes & Curran?
Applications are submitted through the firm’s careers portal (MHC Careers). The firm advertises positions for solicitors, trainees, and support staff.
What is the partner salary at Mason Hayes & Curran?
Partner compensation is not publicly disclosed. Estimates based on industry trends suggest equity partners at top Irish firms earn between €500,000 and €1.5 million annually.
Is Mason Hayes & Curran a magic circle firm?
No – the magic circle refers to five London‑headquartered firms. MHC is an Irish firm and not part of that group.
How does Mason Hayes & Curran compare to Arthur Cox or A&L Goodbody?
All three are top‑tier Irish firms. MHC distinguishes itself with a larger international office network, while Arthur Cox and A&L Goodbody often lead in domestic revenue rankings.
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