Matheson Ormsby Prentice, Ireland's largest law firm was the first European law firm to establish offices in Silicon Valley, California in 1996. 2003 saw the opening of our New York office. During the past 15 years, we have continued to invest into our offices in the US to ensure that we can service the needs of clients across most major time-zones on a real-time basis.

John Ryan is head of the firm's US offices and has more than 20 years’ experience advising international companies doing business in and through Ireland. John leads a team of tax, corporate and financial services lawyers based in the firm’s US offices who focus on advising US companies and financial institutions doing business in and through Ireland. We are the largest Irish law firm in the US and provide an unrivalled offering to US companies doing business in and through Ireland.