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Leonard Auction connects a global market of buyers to our curated catalog of auction lots and makes it easy to buy and sell quality items. We ensure that every item we feature is always represented accurately and given the utmost care through the entire auction process. From appraisal and item pickup, all the way through to final delivery to the buyer, our experienced team of auction professionals ensures a smooth transaction. Leonard Auction offers customers an honest, easy-to-work-with, knowledgeable and experienced partner for all their auction needs.

Leonard Auction Questions

The Leonard Auction annual revenue was $5 million in 2026.

John Leonard is the President and Founder of Leonard Auction.

12 people are employed at Leonard Auction.

Leonard Auction is based in Addison, Illinois.

The NAICS codes for Leonard Auction are [5619, 56, 561, 561990, 56199].

The SIC codes for Leonard Auction are [738, 73].

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