Auctioneer Kimberly Pirtle Leaves Sotheby’s to Launch Hybrid Art-Philanthropy Advisory

Kimberly Pirtle, a fast-rising auctioneer at Sotheby’s, has left the company to launch Gabriel Advisory Group, a hybrid art advisory and cultural philanthropy firm. The new practice works across primary and secondary markets, advising collectors on acquisitions while also guiding philanthropic strategy and institutional engagement, drawing on Pirtle’s experience in Sotheby’s collectors group and her work with benefit auctions for organizations including the Pratt Institute, the Bronx Museum of the Arts, the Queens Museum, and the Gordon Parks Foundation. Pirtle is also maintaining a role as a VIP consultant with Frieze.