Both of these show promise, but I like #22 better. That's a very witty update of a shield logo. However, I think that you (as well as most of the other submissions), misunderstand what 'consulting' means in my industry. I don't just give advice, I implement it. So the piece of the logo that suggests comments actually makes us look like we do less than we do.
Dear CH, Many thanks for feedback, It's really really helped me... And I already update my logo at entry #28. Do you mean like this? Please let me know....