I like Entry #16. After seeing the various entries I think I like the logos that lay out wider. Maybe just keep the initials NPDS in the circle and put the text outside the circle to the right. I like how you put in some CMYK. Maybe that element can go to the upper left side of the circle and extend out to underline the text on the right? Just an idea.
I like entry #54 the best of your new submissions. I also like Entry #56 because you took out the black inside the circle and the Visualize success tag is outside the circle and balances the logo a little better. I like the tapered ends of the lines around the circle of Entry #54. I also think the color on the inside of the circle is making the logo look like it has too much orange. I think I would like it better if the inside of the circle was white or light gray with NPDS letter black and one orange letter. Nice job!