CompStak is an online crowdsourced marketplace for commercial leasing and sales information providing breadth, depth, and accuracy unmatched by any other platform. Since 2012, CompStak has delivered this unmatched insight to a network of tens of thousands of members and clients, including Tishman Speyer, Wells Fargo, OakNorth, SL Green, and every major brokerage nationwide. CompStak Exchange is a free platform for brokers and appraisers - you trade the comps you have in exchange for the comps you need. Through our partnership with NAI Global, CompStak is proud to provide exclusive benefits to all NAI members.