Mergers and Acquisitions

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"They have an excellent understanding of our business, which allows them to address matters quickly and accurately. It is a top-level firm."
Corporate and Commercial /  M&A: Chambers Europe 2019 Chambers Europe 2019

"Matheson provides an exceptional level of service in all areas. Technically accurate, commercially focused and delivers on a timely basis."

Our Mergers and Acquisitions (M&A) lawyers advise the firm’s global client base on major M&A and other corporate transactions across a broad range of industry sectors, many with an international dimension. We have advised on some of the most significant Mergers and Acquisitions transactions in recent years, representing some of the world’s largest corporates, financial institutions and international private equity groups.

We are the law firm of choice for international companies doing cross-border transactions and have advised bidders on more cross-border deals with an Irish involvement than any other Irish or international law firm in the last ten years (Mergermarket September 2017).

During 2014, Matheson advised on the largest European deal of the year, Medtronic’s $42.9 billion acquisition of Covidien, as well as the third largest global transaction of the year, the $66 billion merger agreement under which Actavis will acquire Allergan in a $66 billion cash and stock transaction.


Experience Highlights

Matheson has advised on more cross-border Mergers and Acquisitions(M&A) transactions than any other Irish law firm in the last five years. Our M&A lawyers have most recently advised:

  • Perella Weinberg Partners LP on its role as financial adviser to US medical device maker Medtronic, Inc. on its $42.9 billion acquisition of Irish-based Covidien plc
  • Auxilium Pharmaceuticals on its $2.6 billion acquisition by Endo International
  • Actavis  on its $8.5 billion acquisition of Dublin-based Warner Chilcott plc, and its subsequent listing on the New York Stock Exchange
  • Questcor Pharmaceuticals Inc on $5.6 billion merger with Mallinckrodt plc
  • News Corp on its acquisition of Dublin-based social news agency Storyful
  • Royalty Pharma on its $6.5 billion bid for Elan, the Irish biotechnology company
  • Eaton Corporation, the US-based power management company, on its acquisition of Cooper Industries plc, valued at $11.8 billion, and its subsequent listing on the New York Stock Exchange
  • The Minister for Finance on the €1.3 billion sale of life and pensions provider Irish Life to Great-West Lifeco
  • Hutchison Whampoa, through its Irish business Three Ireland, on its €780 million acquisition of communication provider O2 Ireland



Matheson are the law firm that clients would "like all other law firms to emulate".
Chambers Europe 2019

Matheson are "top notch, they are the best full service law firm that I use."
Chambers Europe 2019

Matheson is able to "communicate legal terms and advice in business terms".
Chambers Europe 2019

"Matheson has provided sound, practical advice. The continuity they bring does contribute to the effectiveness of this law firm - this business relationship. Matheson has provided excellent service through solid legal advice combined with sound business and practical ideas, responsiveness, a real understanding of our business and the above noted continuity."
Chambers Europe 2019

Matheson does "a great job on work that crosses international boundaries".
Chambers Europe 2019

"Outstanding service. Strong sector knowledge and commercial approach."
IFLR1000 2019

"Their performance has been top-notch."
Chambers Europe 2016

"Insightful, highly efficient, accessible and technically very capable."
IFLR1000 2017

"Matheson worked well with the US lawyers, and the cooperative spirit and focus on getting the transaction accomplished quickly was much appreciated."
IFLR1000 2017

"We were happy with this very supportive and proactive team. The lawyers led us through the legal issues and their implications, and helped us to deal with the different cultures involved in the transaction."
Chambers Europe 2016

The "outstanding" team at Matheson is "pragmatic and prompt, and provides targeted insights".
European Legal 500 2016

"Matheson provides an exceptional level of service in all areas. Technically accurate, commercially focused and delivers on a timely basis."
IFLR1000 2016

One of the best for M&A.
European Legal 500 2015

"An excellent team - practical and pragmatic with a sensible approach to guide the company through the various aspects."
Chambers Europe 2015

"Nothing is ever too much trouble for the team - if it says it's going to do something, it will do it."
Chambers Europe 2015

"The firm has had an impressive year, which saw it advising on three multi-billion dollar deals among other large transactions."
IFLR1000 2014

The firm targets international businesses and financial institutions doing business in and through Ireland, and in M&A this is exactly the clientele Matheson has been securing.
IFLR1000 2014

"This domestic giant is applauded for its formidable corporate practice, which excels in all aspects of the area. International clients are a core source of instructions for the team, which specialises in advising international companies and financial institutions operating in Ireland."
Chambers Europe 2013

Sources say: "It really knows the local market and did a good job of anticipating our needs and providing us with practical advice. As a US company moving into Ireland, we found the lawyers flexible and understanding of the particular needs of our business."
Chambers Europe 2013

Clients are certainly impressed: "Matheson provided above and beyond my expectations. Their work product is exceptional and they deliver on a timely basis."
IFLR1000 2013

One client says: "They have definitely met our expectations. They are proactive and thoughtful."
IFLR1000 2013