CleanMem - CleanMem keeps memory use in check on the system without the memory being pushed to the page file.
iFreeMem - iFreeMem frees memory from the in-memory cache that accumulates with every file or application read...
Wise Memory Optimizer - Wise Memory Optimizer a simple and effective RAM booster to help you free up memory and get your computer running smoothly again.
Memory Clean - Super Powerful Memory Cleaning Utility for Mac
Mem Reduct - Mem Reduct is a small application that allows you to monitor and clean your computers memory.
RAMRush - RAMRush is a free memory management and optimization tool.