I like all of these icons. However, I am not sure I like the stacked versions now. The main reason why is because of the spacing between the letters on C-A-T-A-L-Y-S-T. Do you want to try these with the non-stacked versions? Any other thoughts?
#10, #12, #9: I really like this iconic approach. However, I don't like the way the type is working. If you could provide some more options, it will be helpful to me in my decision process. The problem is with the font used for Catalyst and the stacked versions. I am not sure that this works.
#10: I still do like the stacked version of this but am having a problem with the spacing for Catalyst. Could you take a look at this by considering some other fonts and the spacing?