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About us
Founded by the visionary French duo Rim Guirari and Thomas Castagnet, Mustard & Linen is an award-winning interior design studio. Based in Abu Dhabi, the studio operates internationally with projects in Europe, Middle East and Asia.
With a decade of excellence in design Mustard & Linen has grown into an international team of over 50 professionals, where each member brings a unique blend of creativity, expertise, and dedication to our projects.
Thomas Castagnet
COO | Technical Director
With a proven track record in both strategic and operational leadership, Thomas excels at aligning creative innovation with practical execution. By uniting technical expertise with a forward-thinking approach, he fosters a culture of continuous improvement and design excellence—driving the studio to exceed industry standards and deliver exceptional value to clients.

Rim Guirari
CEO | Founder
As a leader, Rim empowers her team to push boundaries and create spaces that are both meaningful and timeless. Her approach fosters a culture of collaboration and authenticity, within the studio. With a keen eye for detail and a relentless pursuit of excellence, Rim infuses her passion into every project ensuring that each creation resonates with a sense of purpose, unveiling new possibilities in design.
Our Studio
The studio is proud to celebrate its 10-year anniversary, marking this milestone with the opening of a new showroom. Nestled on the serene Saadiyat Island, Abu Dhabi, the new showroom spans 600sqm and offers stunning views of the mangroves. Designed to foster collaboration, the showroom includes open spaces ideal for events and workshops, creating an inspiring environment for creativity and connection.

Our Values
Collaboration
Excellence
Driven by our commitment to excellence and keen understanding of design, we offer expert guidance and bespoke service to our clients, providing solutions that reflect our clients wishes.