I like the concept as well as the simplicity of the design. At first i did not like the color ball but it feels complete but somewhat non-desrcript. I am not sure I am in love with the font either.
The letters 'C' in the graphic device do come across a bit more plainly in the two-colour version so I wasn't surprised when at first you rejected the more colourful version. And given the nature of your business, I opted for a simple, no-nonsense approach to the fontwork. Overall, I still think the ideas of partnering and synergy are key here. However, I'm happy to experiment further if you have a direction you'd like consider...?