Aileron Design, launched in 1990, has designed and collaborated on architectural projects throughout the U.S. and abroad, including Madrid, London, Beirut and the Dominican Republic. Led by principal Kathryn Biddinger, the firm creates simple and innovative solutions which respond to the needs of the client, and reflect a sensitivity to materials, color, and space. The diverse portfolio ranges from small residential renovations and furniture design to large commercial projects.

Aileron Design is also known for expertise in design and fabrication of architectural metals. In addition to in-house projects, they have worked in partnership with many major architectural firms. Aileron's varied projects have been widely published in Interior Design Magazine, Metropolitan Home, Abitare, Architectural Digest, House and Garden, and Elle Decor.