The 7 Best B2B Fulfillment 3PLs (2026)

B2B (business-to-business) fulfillment means picking, packing, and shipping larger, less frequent orders to other businesses: retail distribution centers, wholesale accounts, and marketplaces. B2C fulfillment ships single units directly to individual shoppers. B2B orders are typically cases or pallets tied to purchase orders, move by LTL or FTL freight, and must follow strict retailer routing guides, labeling, and delivery windows. B2C orders are eaches shipped fast by parcel with branded packaging. Many brands need both, which is why the best B2B 3PLs also run DTC from the same inventory.

Based on Fulfill.com's published 3PL pricing guide, B2B pick and pack runs about $4 to $6 per order, higher than B2C because of case and pallet handling. Receiving is roughly $5 to $15 per pallet, with container unloading around $250 to $600. Pallet storage typically runs $15 to $40 per pallet per month, with most providers between $18 and $25. Kitting and special projects are billed at about $35 to $60 per hour. Setup fees range from $250 to $1,000, and monthly minimums reach up to $750.

Retail fulfillment is the process of storing inventory and shipping it into retail channels rather than to individual consumers. That includes replenishing a retailer's distribution centers, filling wholesale purchase orders, and supplying marketplaces such as Amazon Vendor Central or Walmart. It requires case and pallet picking, EDI order processing, compliant labeling, and freight coordination by LTL or FTL. Retail fulfillment sits alongside DTC fulfillment in an omnichannel operation, and a capable B2B 3PL runs both from the same inventory pool.

Retail distribution is the movement of product from a manufacturer or 3PL warehouse into retail stores and their distribution centers. It covers order consolidation, pallet building, freight routing, and pool distribution, where shipments to many stores are combined to cut cost and transit time. Distribution to national retailers must follow each retailer's routing guide, appointment scheduling, and labeling rules. A 3PL with multiple warehouse nodes can position inventory closer to retail DCs, shortening lead times and lowering LTL and FTL freight spend.

B2B inventory management relies on a warehouse management system that tracks stock at the case and pallet level, not just eaches, and supports lot, batch, and expiration tracking where needed. Good B2B 3PLs give real-time visibility across channels, set automatic replenishment triggers for retail accounts, and reconcile inventory against inbound purchase orders and advance ship notices. Accurate on-hand data is critical because retailers issue chargebacks for short or late shipments. Systems like SWIMS and VeraCore, used by providers on this list, are built for this multichannel visibility.

The right B2B ecommerce 3PL depends on your retail accounts, order profile, and channels. Confirm the provider has real EDI and routing-guide experience with your specific retailers, can handle case and pallet picking plus LTL and FTL freight, and has a clean chargeback track record. If you also sell DTC, choose a 3PL that runs both from one inventory pool. Fulfill.com matches brands to providers based on this real fit; the seven 3PLs above each have a verified record of placing B2B and retail brands.

EDI, or electronic data interchange, is the standardized electronic exchange of documents between a brand, its 3PL, and its retail partners. Common transactions include the 850 purchase order, the 856 advance ship notice, and the 810 invoice. Retailers require EDI so orders, shipments, and billing flow automatically and accurately. A B2B 3PL that supports EDI can accept retail POs, transmit compliant ASNs, and avoid the deductions retailers apply when data is missing or wrong. Nearly 400 brands in Fulfill.com's network flagged EDI as a requirement when matching.

Retail chargebacks are financial penalties that retailers deduct from a brand's invoice when a shipment breaks their compliance rules: late delivery, missing or wrong labels, an inaccurate advance ship notice, incorrect pallet configuration, or a missed delivery appointment. They can quietly erode margin on every B2B order. A capable B2B 3PL avoids them by following each retailer's routing guide precisely, applying correct GS1 and carton labeling, transmitting accurate EDI documents, and hitting delivery windows. When you evaluate a B2B provider, ask about its chargeback rate with retailers like yours.