Trusted since 2007, O'Sullivan Auctions brings together practical sellers, curious bidders, and the kind of good finds worth showing up for — Michigan's premier auction house for over 19 years.
Next Auction · October 10, 2026
We are currently accepting consignments: antiques, collectibles, tools, furniture, coins, jewelry, sporting goods, vintage items, estate pieces and more.
Whether you're settling an estate, downsizing, moving, or simply have more than you know what to do with — give us a call.
Estates, collections, household contents, tools, antiques, farm items, and more — sold live with honesty and energy.
For situations where an auction isn't the best fit. We run organized, well-attended estate sales start to finish.
Helping families turn an entire household or collection into cash, with care and professionalism.
For people moving, retiring, entering assisted living, or simply simplifying their lives.
Individual quality items or collections can be included in our scheduled consignment auctions.
Coins, tools, antiques, collectibles, hunting and fishing gear, jewelry, vintage items, and similar collections.
A lot of people have no idea what should be sold, donated, discarded, kept, or grouped together. We'll help you navigate this process.
Auction setup, organization, advertising, sale management, and settlement. We handle the sale — not just the auctioneering.
We have been active and successful auctioneers since 2007. We enjoy helping clients downsize, manage estates, or simply make some money.
Not sure what you have or the best way to sell it? Call us — we're happy to talk through your situation.
Browse highlights from our collection. Each piece carries its own story and character.
Since 2007, we've built our reputation on honesty, energy, and respect for every consignor and bidder we serve.
Nearly two decades of successful auctions, estate sales, and happy clients across the region.
Based in Michigan's Western U.P. — we know the community, the market, and the people.
Straight answers, practical guidance, and no surprises. We keep you informed every step.
Our auctioneering brings life to every sale — engaging bidders and maximizing results.
Graduate of The Continental Auctioneers School and certified in estate & real estate auctions.
We treat every item — and every family — with the dignity and attention they deserve.
Hundreds of successful sales and a growing community of returning consignors and bidders.
Professional presentation, wide reach, and smart marketing to get the best possible return.
Based in Bessemer, we travel to conduct on-site auctions and estate sales throughout the region.
Don't see your town listed? Give us a call — we regularly travel beyond this list for the right estate or collection.
Real feedback from real people — consignors, bidders, and families we've had the privilege to serve.
Danny and his team handled my mother's estate with incredible care. They were patient, honest, and got us results we didn't expect.
I've been to dozens of auctions over the years. O'Sullivan runs one of the most organized, professional sales I've ever attended.
We consigned a collection of antiques and couldn't be happier. Clear communication, fair pricing, and prompt payment.
Not sure where to start? These are the questions we get asked most — and the straight answers.
Give us a call at (906) 675-8971 or fill out the contact form below. We'll talk through your situation and recommend the best route — live auction, estate sale, or consignment.
Yes. We help families turn an entire household or collection into cash, handling setup, organization, advertising, sale management and settlement — with transparent terms and prompt payment.
Antiques, collectibles, tools, farm equipment, coins, jewelry, vintage items, household contents and sporting goods all do well. Not sure what you have? Call us — we'll help you figure out what to sell, donate or keep.
Our live sales take place in Michigan's Western Upper Peninsula. We also run estate sales and downsizing sales on location across the region.
Bring us quality individual items or whole collections and we include them in our scheduled consignment auctions. Settlement is honest and prompt, every time.
Registration is free and done right at the door with a valid ID. We'll hand you a bidder number instantly — no advance sign-up needed.
Settlements are typically issued within 10-14 business days after the successful completion of the auction or sale.
We post lot previews, sale-day photos, and last-minute updates on Facebook before anywhere else.
Share a few details and we'll help you understand the next practical step.
Whether you're looking to sell, consign, or simply want advice on your collection — we're here to help.