
IP capabilities
Arnold & Siedsma part of Rouse Group
Since September 2025, A&S is part of the Rouse Group. The Rouse Group has a clear strategic vision to build a global IP leader, where clients can access comprehensive IP capabilities, across markets, with high quality delivery optimised to their needs.
Rouse Network and Group
Founded in 1990, Rouse has built a strong reputation in the complex markets where it is present: Middle East and Africa, Southeast Asia, China and Hong Kong SAR (the Rouse Network). Arnold & Siedsma joined in September 2025, complementing the Rouse Network and bringing expertise in patents, Europe and cutting-edge technologies. In 2025 also Wrays joined bringing coverage in Australasia. Aera, a Scandinavian firm joined in 2024. IPQ and Valea were the first businesses to join, in 2019 and 2022 respectively and now are part of the Rouse Network. Konsert, a consultant and part of the Rouse Group, brings a unique blend of strategy and IP to strengthen competitiveness from technology and IP, adding a distinctive service offering. The Rouse Group members are legally independent from the Rouse Network and other Rouse Group members.
IP capabilities
A&S now combines its expertise in patents, trademarks and designs and legal services with Rouse’s expertise in Trademarks & Brands, Patents, Enforcement, Disputes, Digital & Commercial and Consulting. Together, we offer one integrated service in the field of intellectual property. This collaboration creates a clear and complementary approach. We support organisations throughout the full lifecycle of intellectual property. This includes developing and protecting IP rights, as well as enforcement, dispute resolution and the strategic use of IP.
One collaborative approach
Our collaborative approach across the Rous Group ensures a clear and consistent IP strategy across different jurisdictions and disciplines. Our teams work closely together and provide practical, commercially focused advice, supported by strong legal and technical knowledge. This helps organisations deal confidently with legal and digital challenges.

























