Fieldfisher

Firm overview:

With some of the world’s biggest tech brands on its client list, and its involvement in the most consequential trademark disputes, Fieldfisher continues to be a stand-out firm for trademark work. The firm has a dedicated trademark formalities function which provides the full administrative service, and advises clients in relation to trademark licensing arrangements and other non-contentious brand matters. Well respected in the market, Fieldfisher is acknowledged as a top-tier practice by its peers.

Fieldfisher’s elite disputes practice advised on over 1,000 contentious brand IP matters in the last year. These included acting for Google in Shorts International v Google, and representing Getty Images in its highly publicised clash with Stability AI.

Team overview:

Hastings Guise heads the IP Group at Fieldfisher, specialising in brand IP, trademarks, passing off and designs. Guise coordinates multi-jurisdictional trademark clearance and protection programmes as well as leading trademark disputes.

Key members of the team include partner Nick Rose, who is known for handling large, complex cases with international elements. This expertise has led to his involvement in Getty Images v Stability AI.

Amy Reynolds and Harriet Seymour, also partners in the IP team, manage significant trademark portfolios for high-profile clients alongside Hastings. Reynolds has over 20 years’ experience in the field, and is particularly known for managing global trademark portfolios and prosecution strategy, while Seymour brings a commercial perspective to her practice and advises on matters including licensing and franchising, as well as enforcement.

Partner Tommy McKenna is recommended by a peer, who praises his “dynamic approach to trademark and brand disputes and very good tactical sense”.

Key matters:

• Google: Litigation and registry work

Fieldfisher’s calibre in trademark matters is reflected in its instruction on both litigation and registry work for Google, one of the world’s three largest businesses.

This has included securing a successful result for Google in a UK High Court trademark infringement and passing off action brought against its use of ‘Youtube Shorts’.

The team also supports Google in numerous proceedings before the registry and courts, enforcing its marks such as ‘YouTube’, ‘Chrome’, ‘Pixel’, ‘Gemini’, and ‘FitBit’, often achieving successful negotiations.

• Getty Images v Stability AI

The team is instructed by Getty Images, one of the world’s leading owners of photographic content libraries, in the widely publicised High Court litigation against Stability AI in relation to its generative artificial intelligence model Stable Diffusion.

In November 2025, Getty succeeded on a limited part of its trademark case, with the ruling confirming that Stable Diffusion’s inclusion of Getty’s trademarks in AI-generated outputs infringed those trademarks.

Getty was granted permission to appeal a secondary infringement finding, the outcome of which could be highly impactful for the AI industry.

• Wise Payments v With Wise

The team acted for software company With Wise in two IPEC actions involving Wise Payments, for trademark infringement, passing off, invalidity and revocation with considerations of bad faith. After judgment, and before the form of order hearing, the parties reached a confidential settlement in November 2025.

It was the first case to apply the Supreme Court’s Skykick bad faith principles.

Clients:

1661 dba GOAT, Brighton College, Caffè Nero, Dell, EYGS, Getty Images Group, Google, Oh Polly, Randox Laboratories, Sazerac, Shopify, Take-Two Interactive Software, With Wise