nGrinder
Load testing platform based on The Grinder (archived)
OctoPerf
SaaS and on-premise load testing platform based on JMeter
OpenSTA
Distributed load testing architecture based on CORBA
Oracle Application Testing Suite
Oracle’s functional and load testing suite (limited to EBS customers)
Ostinato
Network traffic generator and analyser
IBM DevOps Test Performance
Performance and load testing (formerly Rational Performance Tester)