Powell Gilbert is listed in the top ten ranked Intellectual Property law firms in the 2015 Who’s Who Legal 100: The Law Firms of the Leading Lawyers 2015. The ranking states:

Powell Gilbert ranks highly in our IP research, reflecting its position as a prominent specialist IP firm dedicated to serving clients in the technology and brand-based industries. The firm offers advice across the full range of IP matters including patents, trademarks, copyright, designs and confidential information. The firm's lawyers have built their expertise on technical background, and have extensive experience of acting in complex patent litigation and major trademark enforcement cases, before the UK courts and overseas in continental Europe, Scandinavia, the US, Australia and Japan. With expertise encompassing general IP issues, litigation, alternative, dispute resolution, brand strategy and portfolio management, Powell Gilbert has consolidated its reputation as a "go-to firm for a range of important IP matters, both in the UK and abroad".

Penny Gilbert ranks very highly in both our patents and in life sciences patent litigation research, with peers describing her as a "real authority" in the field. She focuses on the biopharma sector and has experience in coordinating multi-jurisdictional patent litigation and representing clients in European Patent Office proceedings. Gilbert is also able to draw from her "impressive scientific background" when advising clients on patent litigation strategy.

The "truly outstanding" Tim Powell regularly coordinates complex parallel patent proceedings across, Europe and North America and is recommended by clients for his "sector-leading technical knowledge relating to genetics and pharmaceuticals".

Zoe Butler is a "hugely respected" IP litigator who is particularly well known for her expertise in complex patent disputes, where she advises a diverse range of clients including biotech companies, electronics and software companies. 

The "incredibly talented" Alex Wilson advises clients throughout Europe on multi-jurisdictional IP enforcement and strategy, while Simon Ayrton "really stands out for his innovative approach and technical knowledge" as it relates to IP and technology contract disputes.