If you have surplus wood pallets, here are the main avenues to sell them, from local to national:
Warehouses, manufacturers, distributors, farms—anyone who ships/receives goods. Walk in or call logistics managers.
Many accept pallets for repair/resale or grinding into mulch. Pay by weight or piece. Check local municipal or private recyclers.
Companies that buy/sell used pallets in volume. They grade (A/B/C), repair, and resell. Search "pallet recycling near me" or "pallet broker."
Some Lowe's, Home Depot, local lumberyards buy back standard GMA (48x40) pallets or sell them in garden centers.
Freight forwarders, crate builders, movers—need pallets daily. Establish a recurring pickup.
Upcyclers make furniture, planters, walls. Advertise "free/cheap pallets" on woodworking forums, FB groups.
Raised beds, compost bins, fencing, animal shelters. Connect via farmers markets, ag extension.
If you have volume (50+), consign to industrial auctions or sell at flea markets.
Post in local business groups, LinkedIn, industry forums. "Pallets for sale: [qty], [size], [condition], [location]."