Some nice ideas. I like #16/#17 a lot. Can we try it without the green part / cross (in other words, letters only)? Also, can you try it in the same color blue as #9, and lastly see what it looks like with letters just a bit more bold. The cross idea is interesting, but in #7 and #9 it's too close to the popular Red Cross organization logo. One thought would be to keep the letter "t" in the same color and add a few more horizontal lines at the bottom of the "t" below the cross, which will help it feel more like "technology" and less like a hospital. Many thanks!