Learn More About MacLachlan and Donaldson

MacLachlan & Donaldson is one of Ireland’s leading Intellectual Property firms, having zealously fought for our client's rights for more than 50 years. Our highly trained staff of attorneys, and our extensive resources, are dedicated to protecting your IP interests. With attorneys in Dublin and Belfast, we are an all-Ireland firm that can represent your rights in Ireland, the United Kingdom, and the European Union, as well as multiple territories across the globe.

We are among the top 250 firms across all 27 countries in the European Union for the filing of EU trade mark applications. The 2017 edition of World Trademark Review 1000 states that since its establishment in 1967, “MacLachlan & Donaldson has burned bright in Ireland’s IP firmament. Treasured for its stellar trademark prosecution and consultancy output, it expertly manages the international portfolios of some of the world’s largest companies”.