Ex-agency advertiser and consultant here. Wanted to provide some thoughts. I agree, Facebook targeting alone wouldn't work quite well. In this case, I would pro

Ex-agency advertiser and consultant here. Wanted to provide some thoughts. I agree, Facebook targeting alone wouldn't work quite well. In this case, I would probably utilize FB/GDN as retargeting platforms which would then probably yield some results. Problem here is you would need to get first-party data. LinkedIn as you mentioned would be a decent avenue since you can target specific careers, however I would actually rely on the sales side to start building the list. Of which, you can start generating lookalikes (I always question lookalikes because the algos are "proprietary", but everything warrants a test to see results). Google Search will be good here too with a good set of keywords.