Providing Professional And Personal Service At Our Heavy Equipment Auctions | Don Smock Auction Company, Inc. is an aggressive auction company providing new and innovative ideas for the ever changing auction business. Please browse our entire web site including company information, upcoming auctions, testimonials and appraisal information. We would be glad to hear from you, whether a current customer or someone who has just discovered DSA. Let us assist in all of your Heavy Equipment Auctions.