Tryton business software, ideal for companies of any size, easy to use, complete and 100% Open Source.
Tryton has a three tier architecture: database (sqlite, postgres), trytond (application server), client (web, gtk). Tryton is written in Python.
The necessary company identifiers are available (cif, cui, onrc, cnp). Translations are aprox 70% complete for base modules, and aprox. 30% overall. I am currently working on accounting together with some service providers. Do get in contact if you would like to contribute.
Have a look at www.tryton.org, discuss.tryton.org, docs.tryton.org. If you can not find the answer do feel free to give me a call at +40730556557 or send me an e-mail and I will help you evaluate if it is the right system for you. I do not charge anything, and I would be happy to onboard a new user to Open Source software.