The two most-confused e-commerce concepts: B2B (Business-to-Business) sells to businesses; B2C (Business-to-Consumer) sells to end consumers. Their models and software differ.
Comparison
B2B: business customers, custom pricing, bulk orders, account/credit payment, dealer login. B2C: consumers, fixed pricing, single orders, instant payment, open access.
Summary
See B2B e-commerce or İzmir e-commerce.