Java

• Compiere ERP&CRM
• JERPA
• Ohioedge
• SellWin
• Hipergate
• Link3-CRM
• openCRX
• Daffodil CRM
• SourceTap CRM
• CentraView
• Cream CRM
• OAJ(OpenAccountingJ)
• Sequoia ERP
• JFire
• OpenCustomer
• GARDENIA
• Neogia
• Compiere MFG&SCM
• Nseer ERP
• Openbravo ERP
• Tina POS
• QueWeb
• Plazma ERP+CRM
• JAllInOne
• SocrateOpen
• opentaps

C#

• Yuza open Erp

Python

• Tiny ERP
• Frepple