JasperReports - JasperReports Server is a stand-alone and embeddable reporting server.
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
ManageEngine ADAudit - ManageEngine ADAudit is a real-time windows active directory auditing tool.
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
Pentaho - Pentaho is a Business Intelligence software company that offers Pentaho Business Analytics, a suite...
QUCS - Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.