Simple Invoicing program for Desktop written in vba and Access
ERP Server
Accounting system for smaller companies written in GnuCobol.
Accounting & Best Practice Business Administration System
Manage and maintain inventory of your company, items, sales, orders
Out of Africa comes KwaMoja. A fresh start for webERP!
SmartPOS (Includes->SmartERP distro of Idempiere ERP) is 100% Web
Free Accounting, Billing and Inventory Software with Bardcodes
JEE based Accounting web-application.
Invoice and office utilities program for customer managment
Store Hunch Point OF Sale helps manage and grow your store.
its complete accounting system for small scale manufacturing companies
Gestionale DDT e Fatture Invoice
The Open Source Invoice Management Software
Mutasyon is a script can add customer, products, inventory or invoice
Unicenta BackOffice Web App
Company Management Application
Keep track of all your job costs, make sure you don't lose money