End-to-End

Business Engine
Supplying e-commerce solutions for global IT, research and development, and professional service organizations.
http://www.businessengine.com/

CommerceHub
enables trading partners all over the world to thrive in the new e-conomy, by seamlessly linking retailers to all their vendors, manufacturers, distributors, carriers, and other trading partners - through a single connection.
http://www.commercehub.com

Essentus
Provider of business-to-business software supply chain solutions, offering business process outsourcing and services for the apparel and footwear supply chain.
http://www.essentus.com/

NetResults
ProShop/B is an integrated electronic commerce system for the suppliers and buyers of goods and services in the business-to-business environment. ProShop provides both sell-side functionality and buy-side functionality. ProShop is typically sold to the suppliers; the suppliers provide the buy-side functionality to their buyers as value-add. ProShop allows the suppliers to easily create and operate individualized business-to-business (b-to-b) Web stores. Each of these stores can be tailored to the unique requirements of the corporate customer who uses the store. Each Web store can have a unique set of product items as well as its own pre-negotiated prices.
http://www.netresultscorp.com/

Surebridge.com
One stop source for managed business applications.
http://www.surebridge.com/