A Legacy of Trusted Auctions
BigIron and Sullivan Auctioneers utilizes over 85 combined years of auction expertise behind every sale, offering a powerful online platform that seamlessly combines global reach with personalized local service. Together, we empower buyers & sellers to achieve exceptional results with every auction.
What sets us apart isn’t just the size of our massive 750,000 registered bidder base, it's the proven fact that our bidders return time and again—fostering strong brand loyalty and ongoing bidder engagement.
BigIron and Sullivan Auctioneers are your trusted auction partners. Our events draw serious buyers and ensure every item sells to the highest bidder. That means no guesswork—just real results. With global exposure and local support, we connect sellers with the right buyers in farming, construction, real estate, livestock, transportation, and collector cars.
Benefits of Selling With Us
- A Full-Service selling process from start to finish.
- Comprehensive listings that showcase your items in detail.
- Targeted marketing that hits the right bidders at the right time.
- Access to a vast audience base in a global buyer’s market.
- A proven bidding system with no reserves.
"We have a pretty demanding schedule with our maintenance operations, so to be able to hand things off to BigIron as we did made the sale process seamless and hands off for me. Y'all did a great job and I'd definitely refer you to anyone else looking to sell equipment." Wes Eikner | Oneok, Inc.
"I gotta hand it to BigIron—their internet presence is unsurpassed. The amount of photography they do when representing my equipment, the videos, the way to contact them...it's all fantastic. I can do a lot of equipment shopping from the office on my farm, or from my smartphone—it's just an enormous timesaver that keeps me at work versus traveling to spend a day at auction." Ben Riensche | Blue Diamond Farming Company
"It's not an easy thing to sell the equipment you've farmed with for years, but I think this is the very best way of doing it." Don Argabright | Kansas