In October 2021 Benthe became managing partner of Adams. She worked at Christie's for twelve years, after obtaining her master's degree in Art History at the VU University in Amsterdam. Benthe started her career at Christie’s in the department of 19th Century Paintings, after which she joined the department of Impressionist & Modern Art. In recent years she was head of the Post-War & Contemporary Art department. As auctioneer she supported many charities such as the Feyenoord Gala, Spieren voor Spieren, Johan Cruijff Foundation and Fonds Gehandicapten Sport. She is also a board member of the Ateliers Support Fund and part of the Netherlands Committee of Human Rights Watch.