1. OpenERP

OpenERP (formerly TinyERP) is an Open Source enterprise management software. It covers and integrates most enterprise needs and processes: accounting, hr, sales, crm, purchase, stock, production, ...

2. LedgerSMB

LedgerSMB is a fork of a popular general ledger software package called SQL-Ledger Some of the improvements that they've made to the code base so far include: Enhanced security Better Windows support ...

3. SQL-Ledger

SQL-Ledger® ERP is a double entry accounting/ERP system. Accounting data is stored in a SQL database server, for the display any text or GUI browser can be used. The entire system is linked through a chart ...

4. ERP5

... government agencies. Complete Coverage ERP5 covers accounting, customer relationship management, trade, warehouse management, shipping, invoicing, human resource management, product design, production ...

5. Openbravo

... orders, goods receipts, invoice registration and accounting, purchase planning, etc. Openbravo's handling of the flow of supply guarantees the integrity, tracking, and homogeneity of the entire process. ...