Best B2B E-commerce Platform in 2026

The five questions that narrow the list fast:

  1. Do you need B2B and DTC on one platform? Only some platforms handle this cleanly.
  2. Is ERP integration your starting point? Then the platform needs to fit around your ERP, not the other way around.
  3. How technical is your team? Composable platforms give you more flexibility but require developer resources to unlock it.
  4. How deep does your B2B complexity go? Basic net terms and catalogs or full RFQ, contract negotiation, and approval chains are very different requirements.
  5. What's your timeline? Some platforms launch in weeks. Others take 12+ months of implementation.