Needs to be simple and not cluttered with information.
Must communicate quickly (billboards are only seen for a few brief seconds) that we solve technology problems.
Any images used would need to express computer frustration.
The only other imagery associated with our companies is our "uniform". All of our techs wear khaki pants and black polo style shirts. We are kind of known to our clients for this "uniform". I'm not certain if something could or should be done with that in the design.
I will attach a sample draft that we did internally but please do not let this sample design affect your own creativity.