US B2B ecommerce continues to expand as it becomes a default buying channel. But slower growth, operational gaps, and marketplace momentum are reshaping where value is created and how sellers compete.

B2B ecommerce growth is outpacing B2B product and electronic sales growth. And ecommerce site sales are taking an increasing share of the market. Macroeconomic conditions, buyers’ preferences, and AI use are fueling increased digital transactions, particularly through third-party marketplaces.

US B2B ecommerce growth is outpacing B2B product and electronic sales growth—but at a slow rate. Buyers’ preference for third-party marketplaces (e.g., Amazon Business) is fueling growth, pushing sellers to consider ecommerce solutions and third-party platforms to reach buyers and meet their procurement expectations.