My favorite of yours is #51, could you try it with less shine? The colors are good. Also can you take out the shadow at the bottom and the gray background. It's much easier to use a logo that is just the circle.
My favorite is #60. The tagline is too long to be included. We don't expect the tagline to be in the logo. #57 and #60 are good options. Maybe you could think more along the lines of education and/or global impact for a new bunch (if you want to do more).
We really like #64. Could you try removing the horizontal band around the people? Submit that and then submit another one with no horizontal band but with some of the lines for the earth at the bottom as well as the top.
Thanks, did the revisions as requested, i also did the globe lines with grey color as i think green lines are merging with the green color of figures at the bottom.