Date Posted: 03.23.2026
Mithun is honored to be featured as a Top 100 Giant of Design by Interior Design Magazine. This is the 49th year of the Giants program, an annual ranking of top United States design firms based on reported interior design fees.
Mithun debuted on the list as #82, with 65 interior design professionals and interior design fees of $13.5 million. In 2025, top markets for our interior design practice included education, workplace, cultural and hospitality.
HEALTHY MATERIALS
Sustainability has been at the core of Mithun’s mission and interior design practice for decades. Wherever possible, interior environments prioritize natural materials and exposed structure without applied finishes, delivering biophilic benefits to humans and eliminating the carbon impact of additional materials. We hope sustainable, resilient and durable products will continue to become a more economical option as well as the right philosophical decision for the world.
One example of Mithun’s commitment to reducing the health and environmental impacts of building materials is our Healthy Materials Guideline, which outlines clear internal boundaries to guide project teams identify and avoid critical chemical classes of concern. A significant milestone embodying this commitment is our Pier 56 Office in Seattle, which achieved Living Building Challenge (LBC) Petal Certification, becoming the first non-pilot tenant improvement project to be certified under the LBC 4.0 framework. Focused on the Materials, Equity and Beauty petals, the project avoided 19 Red List chemical classes known to pose serious risk to human health and the ecosystem, sent advocacy letters to request and advance material disclosure and transparency, and prioritized material reuse and regional sourcing.
LEARN MORE
Explore the full Interior Design Giants coverage. To learn more about Mithun’s interior design practice, explore our portfolio.
