Andy Denmark

Andy joined ATG from Chairish in 2025 and assumed the role of Vice President, Engineering, Arts & Antiques. Before co-founding Chairish he co-founded TripIt, a travel itinerary app acquired by Concur in 2011. Prior to TripIt, Andy held a Director of Engineering role at Opsware (acquired by HP).

In 2013 he co-founded Chairish, the first online consignment marketplace for pre-owned home furnishings, serving as CTO & VP Engineering. During his tenure, Andy led engineering strategy and execution while scaling the technical team. He is now responsible for engineering across all ATG Arts and Antiques marketplaces.

He holds a B.S. in Electrical Engineering and an M.S. in Computer Science, both from Columbia University.