OK, you'll seriously need to reconsider rebranding name for something more serious, not an animal, this is going to be big !
Please do some research on why a company should consider rebranding.
For example here you can see the top 10 reasons :
http://www.vim-group.com/231-the-top-ten-reasons-for-rebrandingSo, there is absolutely no reason to rebrand MAST.