Any idea about the best ecommerce platform for intgeration in b2b?

I need to clarify a confusion regarding the kind of e-commerce platform that will actually be most suitable for integrating in B2B business. I have gone through a number of service providers as well and I have them to be most suitable http://dynamics.folio3.com/dynamics-ax-magento-connector/

If anyone of you know them please provide me with a review. Thanks