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Quick facts
Number of partners

100

Number of other fee earners

600

Other offices

Belfast, London, New York, San Francisco

Languages

English, French, German, Spanish

Key practice areas
Banking and finance
Banking
Project finance
Capital markets
Capital markets : Debt
Capital markets : Equity
Capital markets : Structured finance and securitisation
Financial and corporate
Financial services regulatory
Investment funds
Corporate and M&A
Restructuring and insolvency
M&A
Project development
Asset finance
Firm overview

Arthur Cox LLP is one of Ireland’s leading law firms. We are an “all-island” firm with offices in Dublin and Belfast. We also have offices in London, New York, and San Francisco. Our practice encompasses all aspects of corporate and business law.

With 600 legal staff and a total headcount of nearly 900, we provide a comprehensive service to an international client base ranging from multinational organisations, banks, and financial institutions and established global leaders to government agencies and new players in emerging industry sectors.

Our story has been defined by our progressive outlook. For over 100 years, we have led the way in the legal field in Ireland, and have continuously worked to strive towards our goals. For our clients, we work to deliver the best service and support. With an independent, entrepreneurial spirit of innovation leading the way.

News

Our story has been defined by our progressive outlook. Our news section contains details of new developments and items of interest happening in the firm, and you can read more by clicking here: News - Arthur Cox LLP

Key transactional practices
  • Asset finance
  • Banking
  • Capital markets: Debt
  • Capital markets: Derivatives
  • Capital markets: Equity
  • Capital markets: High yield
  • CLO/CDO
  • Competition
  • Financial restructuring
  • Financial services regulatory
  • Hedge funds
  • Investment funds
  • M&A
  • PPP/PFI
  • Private equity
  • Private equity funds
  • Project development
  • Project finance
  • Real estate finance
  • Real estate funds
  • Restructuring and insolvency
  • Securitisation
  • Structured finance/securitisation
Key practice contacts

Corporate and M&A:
Stephen Ranalow

Commercial:
Louise O’Byrne

International:
John Matson, Geoff Moore

Real Estate:
Simon Hannigan

Litigation, Dispute Resolution and Investigations:
Michael Twomey

Tax:
Ailish Finnerty

Competition and Regulated Markets:
Patrick Horan

Banking:
David Molloy

Investment Funds:
Ian Dillon, Kevin Murphy, Tara O'Reilly

Capital Markets:
Aiden Small

Insolvency and Corporate Recovery:
John Donald

Technology and Innovation:
Colin Rooney

PPP/Projects:
Aaron Boyle

Financial Regulatory
Sarah Thompson

Sector expertise
  • Aviation
  • Banking
  • Construction and materials
  • Energy
  • Financial services
  • Food and beverage
  • Gaming
  • Government and public policy
  • Healthcare
  • Industrials
  • Insurance
  • Investment management
  • Media
  • Natural resources
  • Pharm and life sciences
  • Real estate
  • Social infrastructure
  • Tech and telecoms
  • Transport
  • Utilities
Other offices

Victoria House
Gloucester Street
Belfast
BT1 4LS
Northern Ireland
T: + 44 28 9023 0007
F: + 44 28 9023 3464
belfast@arthurcox.com

12 Gough Square
London
EC4A 3DW
United Kingdom
T: +44 207 832 0200
F: +44 207 832 0201
london@arthurcox.com

Arthur Cox
One Rockefeller Plaza
15th Floor
New York NY 10020
USA
T: +1 212 782 3294
F: +1 212 782 3295
newyork@arthurcox.com

10th Floor
315 Montgomery Street
San Francisco, 94104
USA
T: +1 415 829 4247
F: +1 415 829 4304
E: sanfrancisco@arthurcox.com

Address:
Ten Earlsfort Terrace
Dublin D02 T380
Tel:+353 1 920 1000 Fax:+353 1 920 1020 Email:Contact Us Web Address:http://www.arthurcox.com
Rankings published in 2026
Asset finance
Tier 2
10 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Matheson LLP
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile

Tier 2

Arthur Cox
15 practice areas
View full profile
Maples Group
16 practice areas
View profile
Mason Hayes & Curran
15 practice areas
View full profile
Walkers
12 practice areas
View full profile
William Fry
15 practice areas
View full profile

Notable

Dillon Eustace
14 practice areas
View full profile
Flynn O'Driscoll
3 practice areas
View full profile
Banking
Tier 1
27 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Arthur Cox
15 practice areas
View full profile
Mason Hayes & Curran
15 practice areas
View full profile
Matheson LLP
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile

Tier 2

Maples Group
16 practice areas
View profile
William Fry
15 practice areas
View full profile

Tier 3

Byrne Wallace Shields
8 practice areas
View profile
Dillon Eustace
14 practice areas
View full profile
Eversheds Sutherland
5 practice areas
View profile
Walkers
12 practice areas
View full profile

Tier 4

Addleshaw Goddard
7 practice areas
View profile
BHSM LLP incorporating OBH Partners
4 practice areas
View full profile
Beauchamps Solicitors
7 practice areas
View profile
Dentons
5 practice areas
View full profile
Flynn O'Driscoll
3 practice areas
View full profile
Hayes solicitors
4 practice areas
View profile
Ogier
7 practice areas
View full profile
Philip Lee
6 practice areas
View profile
Ronan Daly Jermyn
5 practice areas
View profile

Notable

AMOSS Solicitors
3 practice areas
View profile
DLA Piper
3 practice areas
View profile
Gartlan Furey Solicitors
1 practice area
View profile
Holmes O’Malley Sexton
3 practice areas
View profile
Pinsent Masons
7 practice areas
View profile
Simmons & Simmons
3 practice areas
View profile
Taylor Wessing
2 practice areas
View profile
Capital markets : Debt
Tier 1
10 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Arthur Cox
15 practice areas
View full profile
Matheson LLP
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile

Tier 2

Maples Group
16 practice areas
View profile
Mason Hayes & Curran
15 practice areas
View full profile
Walkers
12 practice areas
View full profile
William Fry
15 practice areas
View full profile

Tier 3

Dillon Eustace
14 practice areas
View full profile

Notable

Ogier
7 practice areas
View full profile
Capital markets : Equity
Tier 1
8 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Arthur Cox
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile

Tier 2

Mason Hayes & Curran
15 practice areas
View full profile
Matheson LLP
15 practice areas
View full profile
William Fry
15 practice areas
View full profile

Notable

Byrne Wallace Shields
8 practice areas
View profile
Maples Group
16 practice areas
View profile
Capital markets : Structured finance and securitisation
Tier 1
10 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Arthur Cox
15 practice areas
View full profile
Maples Group
16 practice areas
View profile
Matheson LLP
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile
Walkers
12 practice areas
View full profile

Tier 2

Dillon Eustace
14 practice areas
View full profile
Mason Hayes & Curran
15 practice areas
View full profile
William Fry
15 practice areas
View full profile

Notable

Ogier
7 practice areas
View full profile
Financial services regulatory
Tier 1
12 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Arthur Cox
15 practice areas
View full profile
Matheson LLP
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile
William Fry
15 practice areas
View full profile

Tier 2

Dillon Eustace
14 practice areas
View full profile
Maples Group
16 practice areas
View profile
Mason Hayes & Curran
15 practice areas
View full profile
Walkers
12 practice areas
View full profile

Tier 3

Hogan Lovells Cadwalader
2 practice areas
View profile

Notable

Addleshaw Goddard
7 practice areas
View profile
Byrne Wallace Shields
8 practice areas
View profile
Investment funds
Tier 1
15 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Arthur Cox
15 practice areas
View full profile
Dillon Eustace
14 practice areas
View full profile
Maples Group
16 practice areas
View profile
Matheson LLP
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile

Tier 2

Walkers
12 practice areas
View full profile
William Fry
15 practice areas
View full profile

Tier 3

Dechert
2 practice areas
View profile
Mason Hayes & Curran
15 practice areas
View full profile
Simmons & Simmons
3 practice areas
View profile

Notable

Byrne Wallace Shields
8 practice areas
View profile
K&L Gates
1 practice area
View profile
Ogier
7 practice areas
View full profile
Pinsent Masons
7 practice areas
View profile
M&A
Tier 1
25 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Arthur Cox
15 practice areas
View full profile
Matheson LLP
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile
William Fry
15 practice areas
View full profile

Tier 2

Maples Group
16 practice areas
View profile
Mason Hayes & Curran
15 practice areas
View full profile

Tier 3

Beauchamps Solicitors
7 practice areas
View profile
Byrne Wallace Shields
8 practice areas
View profile
Dentons
5 practice areas
View full profile
Dillon Eustace
14 practice areas
View full profile
Hayes solicitors
4 practice areas
View profile
Walkers
12 practice areas
View full profile

Tier 4

Addleshaw Goddard
7 practice areas
View profile
Eversheds Sutherland
5 practice areas
View profile
Flynn O'Driscoll
3 practice areas
View full profile
Philip Lee
6 practice areas
View profile

Tier 5

BHSM LLP incorporating OBH Partners
4 practice areas
View full profile
Pinsent Masons
7 practice areas
View profile
Ronan Daly Jermyn
5 practice areas
View profile

Notable

DLA Piper
3 practice areas
View profile
Lavelle Partners LLP
4 practice areas
View profile
Ogier
7 practice areas
View full profile
Taylor Wessing
2 practice areas
View profile
Whitney Moore
1 practice area
View profile
Project development
Tier 1
10 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Arthur Cox
15 practice areas
View full profile
Mason Hayes & Curran
15 practice areas
View full profile
Matheson LLP
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile
William Fry
15 practice areas
View full profile

Tier 2

Beauchamps Solicitors
7 practice areas
View profile
Philip Lee
6 practice areas
View profile

Notable

Dentons
5 practice areas
View full profile
Pinsent Masons
7 practice areas
View profile
Project finance
Tier 1
10 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Arthur Cox
15 practice areas
View full profile
Matheson LLP
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile
William Fry
15 practice areas
View full profile

Tier 2

Mason Hayes & Curran
15 practice areas
View full profile

Tier 3

Beauchamps Solicitors
7 practice areas
View profile
Eversheds Sutherland
5 practice areas
View profile
Philip Lee
6 practice areas
View profile

Notable

Pinsent Masons
7 practice areas
View profile
Restructuring and insolvency
Tier 1
21 firms ranked
View full list

Tier 1

A&L Goodbody
15 practice areas
View full profile
Arthur Cox
15 practice areas
View full profile
Matheson LLP
15 practice areas
View full profile
McCann FitzGerald LLP
15 practice areas
View full profile
William Fry
15 practice areas
View full profile

Tier 2

Maples Group
16 practice areas
View profile
Mason Hayes & Curran
15 practice areas
View full profile

Tier 3

Beauchamps Solicitors
7 practice areas
View profile
Byrne Wallace Shields
8 practice areas
View profile
Dillon Eustace
14 practice areas
View full profile
Walkers
12 practice areas
View full profile

Tier 4

Addleshaw Goddard
7 practice areas
View profile
BHSM LLP incorporating OBH Partners
4 practice areas
View full profile
Eversheds Sutherland
5 practice areas
View profile
Ronan Daly Jermyn
5 practice areas
View profile

Notable

AMOSS Solicitors
3 practice areas
View profile
Brady Kilroy Solicitors
1 practice area
View profile
Dentons
5 practice areas
View full profile
Hayes solicitors
4 practice areas
View profile
Lavelle Partners LLP
4 practice areas
View profile
Pinsent Masons
7 practice areas
View profile
Linked Reviews
Financial and corporate

Arthur Cox is one of Ireland’s largest and oldest law firms and is presently led by managing partner Geoff Moore. Founded more than 100 years ago in Dublin, where it is still based, the firm now employs 530 legal professionals across its headquarters and offices in Belfast, London, New York and San Francisco 

  

Highlights 

 

In banking and finance, a notable highlight of the firms work during the research cycle includes its role assisting LCM Partners Limited and Solo Asset I DAC in connection with the establishment and the financing of a finance platform with InovoiceFair Limited trading as Financefair. The fund aims to finance the construction of 750 new homes.  

Another highlight of the firms work, includes the firm advising Flutter Entertainment on its EUR 2.3 billion acquisition of Snailtech. The transaction will give Flutter Entertainment an online share of 30% in the Italian market.  

In investment funds, the firm has advised on some notable market firsts. For instance, the firm advised Robeco on the establishment of its first Irish ETF Platform and launch of five initial sub-funds. The Irish ETF platform is Robeco’s first Irish fund range and first ETF products.  

Testimonials 2025

“Responsive and know well the business” - Asset Finance 

 

“Team engagement, attitude, effectiveness and efficiency” - Banking and finance 

 

“Quality, pragmatic, guidance on negotiation, speed” - Investment funds 

 

“Christopher O'Reilly led the charge on the transaction. Very prompt and commercial in the provision of advice and corporate deliverables.” - M&A  

 

“Maura McLaughlin is pragmatic, thoughtful and extremely client focused. She makes it her business to understand the company and industry and the particular needs of her client.” - M&A  

 

“Arthur Cox have a great team who are very experienced in advising on complex M & A on the Irish market. In addition to first class project management capability, they were excellent in working through some of the more technical aspects of the deal, including advising on the optimal structuring approach taking tax and regulatory considerations into account” - M&A 

 

“Large team available with a wide range of expertise” - Project Development  

 

“The Arthur Cox team is very knowledgeable and responsive.” - Restructuring  

 

“Top of their field in Ireland. Understood the gravity of the issues and delivered excellent advice and work product - leading to a successful outcome” - Restructuring 

 

 John Matson 

"John does an excellent job in the client relationship role. He regularly reaches out and seeks feedback and will listen to any client concerns/needs. He is astute and has excellent EI and had used that to play an instrumental role in helping us to find that path forward through some complex issues."

 

Stephen Ranalow 

"Stephen Ranalow is a lawyer that we can always rely on to be 100% looking out for us. He is excellent at anticipating any legal issues, thinking about what that would mean for us a a business, and mapping out a commercial solution."

 

Sophie Frederix 

"Quality of delivery, pragmatic, guidance on negotiation, understands situations." 

 

 

Key clients 

Ryanair plc, Dubai Aerospace Enterprise, AviLease, Aviator Capital, Amergin Asset Management, Ireland Limited, Goldman Sachs, Starwood, Bank of Ireland, Brookfield, Ares, Bank of Ireland, AIB, Lone Star, Blackstone, M&G, Energia, Celtic Roads, Power Capital, Valley Healthcare, LDA 

38 results38 results
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Deal Highlights
203 results203 results
Deal Name Deal Date Firm Name Jurisdiction Deal Type Lawyer Names Client Names Client Role
Bank of Ireland - Bond Issue
2021-05-01
Arthur Cox
Ireland
Bond issue
Nomura, JP Morgan Chase, Deutsche Bank, Credit Suisse, UBS
Underwriter
Bank of Ireland - Bond Issue
2021-09-01
Arthur Cox
Ireland
Bond issue
Credit Suisse, Bank of America Merrill Lynch, Morgan Stanley, Citigroup, Mizuho Bank
Underwriter
Glenbeigh 2 Issuer dac - Bond Issue
2021-09-01
Arthur Cox
Ireland
Bond issue
Citigroup
Underwriter
Crédit Agricole - Bond Issue
2021-04-01
Arthur Cox
France
Bond issue
Crédit Agricole
Issuer
Elva Funding PLC - Bond Issue
2021-07-01
Arthur Cox
Ireland
Bond issue
Elva Funding PLC
Issuer
Ford Motor Company - Bond Issue
2021-03-01
Arthur Cox
United States (National)
Bond issue
Ford Motor Company
Issuer
Jamestown Residential 2021-1 dac - Bond Issue
2021-07-01
Arthur Cox
Cayman Islands
Bond issue
Jamestown Residential 2021-1 dac
Issuer
Libra (European Loan Conduit No 31) dac - Bond Issue
2021-03-01
Arthur Cox
United Kingdom
Bond issue
Libra (European Loan Conduit No 31) dac
Issuer
Blitzen Securities No.1 plc - Bond Issue
2021-08-01
Arthur Cox
United Kingdom
Bond issue
Blitzen Securities No.1 plc
Issuer
Elva Funding PLC - Bond Issue
2021-09-01
Arthur Cox
Ireland
Bond issue
Elva Funding PLC
Issuer
Dilosk Rmbs No.4 dac - Bond Issue
2021-02-01
Arthur Cox
Ireland
Bond issue
Barclays, Groupe BPCE
Underwriter
Shamrock Residential 2021-1 dac - Bond Issue
2021-02-01
Arthur Cox
Ireland
Bond issue
Morgan Stanley
Underwriter
Bank of Ireland - Bond Issue
2021-06-01
Arthur Cox
Ireland
Bond issue
UBS
Underwriter
Mulcair Securities dac - Bond Issue
2021-06-01
Arthur Cox
Ireland
Bond issue
Citigroup
Underwriter
Summerhill Residential 2021-1 dac - Bond Issue
2021-06-01
Arthur Cox
Ireland
Bond issue
Summerhill Residential 2021-1 dac
Issuer
Ryanair DAC - Bond Issue
2021-05-01
Arthur Cox
Ireland
Bond issue
Ryanair DAC
Issuer
Aragvi Finance International DAC - Bond Issue
2021-06-01
Arthur Cox
Ireland
Bond issue
Aragvi Finance International DAC
Issuer
Elva Funding PLC - Bond Issue
2021-03-01
Arthur Cox
Ireland
Bond issue
Elva Funding PLC
Issuer
Elva Funding PLC - Bond Issue
2021-06-01
Arthur Cox
Ireland
Bond issue
Elva Funding PLC
Issuer
Viridis (European Loan Conduit No. 38) dac - Bond Issue
2021-07-01
Arthur Cox
Ireland
Bond issue
Viridis (European Loan Conduit No. 38) dac
Issuer
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11
ESG
With four months until a final decision is made on cutting red tape, Arthur Cox's head of ESG says the firm is not advising clients to put their pens down
IFLR spoke to Arthur Cox chief people officer Triona Ferriter about the firm's culture and the shift to hybrid working in the post-pandemic era
The IFLR team is pleased to announce all the winning deals, teams, firms and individuals and the launch of our first ever podcast
The shortlist for the ninth annual Euromoney Legal Media Group Europe Women in Business Law Awards has been announced. For the 2019 nominees, please see below.
All the winning deals, teams, individuals and firms were revealed at IFLR’s ceremony in London on April 4
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