OpenERP

Open Source: OpenERP is committed to Open Source Business Model. The software is published under the AGPL licence.

Complete :  OpenERP is a comprehensive suite of business applications including Sales, CRM, Project management, Warehouse management, Manufacturing, Financial management, Human Resources just to name a few. More than 700  openERP modules are available on Launchpad

Modular : OpenERP unique modular approach allows customers to start with one application and to add other modules later on. Customers keep the benefits of an integrated software but avoid a “big bang” project.  

Flexible :  OpenERP allows you to customize the user interface and manage your business processes in only a few clicks.

No Lock-in:  The same version of OpenERP can be used either On-site or Online. We are committed to always allow you customers choose what is best for them.

Affordable :  The absence of license fees makes OpenERP very affordable. The complete set of service we provide (On line and On-site) provide great value for the customers. We are of the only vendor to guarantee migration services for a fixed fee.

http://www.openerp.com/products

Vox Teneo is working hard to achieve OpenERP & Drupal integration. We worked on several project involving both product. And they work well together !