Integrity Sales & Auction (ISA) is a premier contractor and trucking-focused auction company servicing the Central United States. We specialize in heavy construction equipment, agricultural, forestry and commercial trucking assets, providing an unmatched customer experience on both sides of the sale.
It's in our name yet it's more than just a name. It's a promise. We're founded upon a commitment to preserving integrity at all times--in every aspect of our business, a commitment that provides buyers and sellers the confidence needed to do business with us. We look forward to the opportunity to earn your trust.
BEGINS CLOSING
Dec 3 2025 @ 9:00AM CST
December 3rd–5th LIVE & ONLINE — Consign Today! Real Estate, Heavy Construction Equipment , Commercial Trucks, Trailers, Forestry, Recreation/Powersports, Tools and more!
BEGINS CLOSING
Dec 3 2025 @ 5:00PM CST
December 3rd — Online Only Items — Begins closing at 5pm CST...Pickups/Vehicles, Miscellaneous Items, Machine/Shop Tools, Power Tools, Welders, Mowers, Recreational Items, Attachments and more!
BEGINS CLOSING
Dec 4 2025 @ 5:00PM CST
December 4th — Online Only Items — Begins closing at 5pm CST...Pickups/Vehicles, Miscellaneous Items, Machine/Shop Tools, Power Tools, Welders, Mowers, Recreational Items, Attachments and more!
BEGINS CLOSING
Dec 5 2025 @ 5:00PM CST
December 5th — Online Only — Begins closing at 5pm CST...Items located in Milwaukee, WI. Full listing coming soon! Industrial equipment, tools and supplies, including welders, weding supplies, welding cabinets, welder wire, heavy duty steel pallet racking, scaffolding, tool cabinets, industrial storage cabinets, miscellaneous tools, supplies and much more!
BEGINS CLOSING
Mar 18 2026 @ 10:00AM CDT
March 18th Online w/ Live Virtual Simulcast —After more than six decades of dependable service across the central United States, Van Groll Trucking, a respected family-owned carrier based in Kaukauna, Wisconsin, is concluding operations and offering their well-maintained fleet at auction. This is an excellent opportunity to purchase late-model, fleet-maintained trucking equipment from a company known for its pride in ownership and commitment to quality. Whether you're adding to an existing fleet or just getting started, this retirement auction features a strong lineup of tractors and trailers ready for work.
Inventory Snapshot:
4 Kenworth Sleeper Semi Tractors
13 Volvo Sleeper Semi Tractors
9 Hopper Bottom Semi Trailers
34 Dry Van Semi Trailers
Full catalog coming soon!
Inventory Location:
N1515 Vanden Broek Rd
Kaukauna, WI 54130
The auction will be broadcast live from:
Integrity Sales & Auction
N295 Tree Ln
Merrill, WI 54452
Buy-It-Now Marketplace
The ISA Buy-It-Now Marketplace is your direct path to all types of equipment–construction, farm/ag, commercial trucking, vehicles and more. All Buy-It-Now pricing includes our standard 10% buyer's premium.
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