Always engaged in multiple projects at the same time, Ingrid Klahn earned degrees in fashion, art, philosophy and psychology. In addition to pursuing a career as an international model from 1968 to 1978, she was a representative for Italian designer Cerruti in the mid-1970s and ran a fashion studio in Germany under her name, Ingrid Klahn Haute Couture Salon, from 1972 to 1979. After moving to Canada in 1979, she was the head designer until 1991 at Amsel & Amsel, a fur company run by her husband Gerhard (Gerry) Jacob. In the early 1980s, creations bearing the Ingrid Klahn label were extremely popular in Japan and Europe, particularly sheared mink coats in a variety of colours. Her fur collections were sold across Japan. From 1994 to 1996, Ingrid Klahn created knitwear for Duramode under the Sealark label. In 1997, she became a consultant for the healthcare industry.