Really like entries 32 and 35. Meets the need of a conservative logo while still maintaining a unique, yet professional, touch to it.
I ranked #35 second as I would like to see this same logo but with the boxes moved to the side as opposed to the top. I enjoyed how the boxes connect with the small disconnect on each end as finding the right person for an executive position is a strategic challenge, and that's where we come in to help.
I ranked #32 as #1 as I perceived the lines as a road. A career is a long journey, so this caught my eye.
Can you try a couple of variations of #32 and #35 similar to #38 (adding the green touch and left text alignment with the picture on the left)
Hope this helps with my thought process. Hope to see some more of your ideas and work soon!