Reni Shulman-Trüdinger (1927–2000) was a Swiss interior architect who worked in Switzerland, Japan and the United States. Reni Trüdinger grew up in Basel, where her father worked as a city planner. From 1947 to 1952, she studied in the Interior Design Department at the Zurich School of Arts and Crafts under Wilhelm Kienzle and Willy Guhl. After graduating in 1952, she worked for the architect Alfred Altherr, who was also teaching at the time. She was given the opportunity to design the interiors of the Swiss Embassy in Tokyo and lived in Japan during this period.

After returning to Switzerland, she worked with Alfred Altherr, then director of the Gewerbemuseum Winterthur, providing a public housing advisory service in Winterthur. From 1956 to 1959, she worked as an interior architect and designer for the Werkgenossenschaft Wohnhilfe in Zurich. During this period, Verena Huber completed an internship there in 1956.

In 1959, Reni Shulman-Trüdinger married medical scientist Lawrence E. Shulman and moved with him to Baltimore, USA, where he worked at Johns Hopkins. They had two daughters, Kathryn and Barbara. When her husband moved to the National Institutes of Health in Bethesda, Maryland, in 1976, Reni Shulman-Trüdinger frequently worked in nearby Washington, D.C. In 1978, the family moved to Bethesda.

For her first major commission, the Swiss Embassy in Tokyo, she designs all of the furnishings. In 1956, she creates the «Zweisitzstuhl», which can be transformed with a single movement from a chair with a standard seat height into a low armchair. The chair, with its frame of black tubular steel and natural wickerwork, receives the «Die Gute Form» award. In 1958, she designs and furnishes the atrium house for the Wohnhilfe cooperative at the Swiss Exhibition for Women’s Work (SAFFA).

From 1965 to 1968, Reni Shulman-Trüdinger works as an interior architect at RTKL in Baltimore, an international architecture, planning and design firm. One innovative project she contributes to at RTKL is the Charles Center, an award-winning urban development project in Baltimore’s Inner Harbor. From 1968 to 1984, Shulman-Trüdinger works as a freelance interior architect. She specialises in the transformation and adaptive reuse of existing buildings, including hospitals, universities and colleges, offices and residential buildings. In 1985, Reni Shulman-Trüdinger co-founds the architecture and interior design firm Intraplan in Washington, D.C., which focuses on projects similar to those she had previously worked on in Baltimore, Maryland.