CleanMem - CleanMem keeps memory use in check on the system without the memory being pushed to the page file.
Mem Reduct - Mem Reduct is a small application that allows you to monitor and clean your computers memory.
CleanMyMac X - Clean, protect and speed up your Mac
Memory Cleaner X - Memory Cleaner X cleans inactive RAM from your computer that allows you to have more applications...
MacFly Pro - Smart assistant for better Mac performance
RAMRush - RAMRush is a free memory management and optimization tool.