Digital freight marketplace for flatbed and heavy haul loads

1. DAT One — probably the broadest choice

DAT explicitly supports flatbed, heavy haul, stepdeck/dropdeck, double drop, RGN, stretch/extendable and multi-axle equipment. Its marketplace connects carriers with shippers and brokers and lets carriers filter by more than 70 trailer types.www.dat.com

Best if: you're looking for the largest general-purpose marketplace with substantial specialty-freight volume.

2. Truckstop — particularly strong for heavy haul

Truckstop has a dedicated Heavy Haul Load Board Pro that combines loads with rate estimates, permit costs, escort requirements and route information. It specifically supports flatbed, stepdeck, dropdeck, double drop, RGN, stretch/extendable and multi-axle equipment.truckstop.com

Best if: the value proposition is specifically oversize/heavy-haul matching, rather than just finding ordinary flatbed loads.

3. FR8Star — heavy-haul specialist

FR8Star is particularly interesting because its marketplace is designed around oversize, overweight and specialized loads. Its carrier marketplace supports flatbed, hot shot, lowboy, RGN, stepdeck and partial loads, with filtering, shipper messaging and blind bidding.www.fr8star.com+1

It also draws freight leads from equipment marketplaces including AuctionTime, Machinery Trader, TractorHouse, Truck Paper and Equipmentfacts.www.fr8star.com+1

Best if: you want a marketplace focused on heavy equipment and specialized transportation, not generic truckload.

4. Uber Freight — digital booking + carrier network

Uber Freight offers a self-service portal for flatbed freight and says its network includes 10,000+ flatbed carriers. It also explicitly handles heavy haul, oversized and over-dimensional shipments.www.uberfreight.com

Best if: you're a shipper wanting to quote/book specialized freight digitally rather than a carrier simply searching a load board.

5. Convoy Platform — automated freight matching

The former Convoy technology is now owned by DAT Freight & Analytics. The platform automatically matches broker-posted freight with carriers and supports flatbed, with digital bidding, booking, tracking and payment.convoy.com+1

One caveat: its current supported freight is FTL dry van, reefer and flatbed; I would not classify it as a dedicated heavy-haul marketplace.convoy.com+1

6. Doft — direct digital marketplace

Doft positions itself as a real-time freight matching marketplace connecting shippers with 360,000+ vetted carriers. It supports flatbed and stepdeck along with other equipment, with digital posting, matching, booking, tracking and payment.www.doft.com

My take

If you're researching competitors or potential partners for a digital flatbed/heavy-haul marketplace, I'd divide the landscape into three groups:

• Large horizontal marketplaces: DAT One, Truckstop
• Specialized heavy-haul marketplaces: FR8Star
• Digital freight networks / automated matching: Uber Freight, Convoy Platform, Doft

FR8Star is probably the closest direct analogue if your specific thesis is "digital marketplace for heavy-haul/oversize freight." DAT and Truckstop are much larger horizontally, but they aren't exclusively focused on heavy haul.truckstop.com+1

If you tell me whether you're looking at this as a shipper, carrier, broker, or as an investor researching the competitive landscape, I can narrow this to the 5–10 most relevant companies and compare their business models, pricing, network size, and matching technology.