Seradex Orderstream is an extremely flexible and easily customisable ERP with true deep functionality. It's specifically made for manufacturers or wholesalers with complexities. It is truly end to end, with modules including CRM, Estimates, Sales Orders, Work Orders, Purchasing, Production Scheduling, Shop Floor Execution, Inventory Management, Warehouse Management, Shipping, and a full Financials suite. It also can be integrated with CAD software, and with a web interface called DBOX. From an administrator's perspective it's great - built on a single SQL database, with all the product configurators made in an intermediate interface using excel documents to make it super simple for any user to add new product ranges or edit configurators without a knowledge of coding. We love how everything is very well integrated - you can jump from one module to the next and trace any order right through the system, right back to component inventory locations in the warehouse, and purchase order batch, and right forward to shipping tracking numbers and PODs etc. They're a small company but as a result are quite flexible, and if you can't do the customisations yourself (through the configurator interface) they're fast and easy to deal with as regards building custom modifications to the software for you.