Legal 500 (2005) ranked as being among highly rated individuals with a strong reputation.

Legal 500 (2006) “boosted the Trade Marks department of Clifford Chance”

WTR 1000 2017 – described as having “forged excellent pan European links in the fashion and pharmaceutical” sectors.

WTR 1000 2018 – described as “being able to cure any brand headache” and “having complete command of Irish case law”.

WTR 1000 2019 – “Niall Tierney at Tierney IP knows how to present information in a way that pleases time-pressed business executives”.

Additional personal endorsements of Niall can be found on