We build a B2B multi-store, we added many features for the model business of this client, the site is closed for registered users, has different prices, categories and products for each store and kind of customer. It has been installed one extension to manage customer sub accounts and we customized it, we made a new extension to manage budgets, each customer and sub account can be engaged to many budgets and if there are no budget available the customer can't complete the order. We develop reports in the dashboard of the master account (not admin), these reports are related with all order of their sub accounts and budgets.
This one of the last projects that we done, the client asked to install and modify a theme, asked for integration for one payment method, one shipping method and whit their ERP. The shipping method was developed from the scratch as the integration with the ERP.
We build the ecommerce site for one of the biggest and oldest retailers in this branch here in Mexico, It was developed over Magento 1.9 and improved with many features in checkout, one of the visible features is the store pickup method that was developed by our company. Another feature added was a massive importer for products.