The Head of Strategy position at any ad agency is a very demanding job. So demanding that they sometimes (not all the time) need recruiters or head hunters to help them find the best talent when they have open positions.
This is a list of account planning recruiters that I compiled over the last nine years or so. I know this does not represent all the recruiters out there but it should give people a start if you don't know any and are looking for new career opportunities. By making this information open and transparent I hope it will help match good strategic planners with good agencies. Bad agencies shouldn't have good talent.