Funny thing is that the last staffing firm I worked at, they used to be a client of a former coworker. I think they were able to negotiate a 20% fee (never worked anything below 25%) with her though, so I never worked any of her jobs that she had open nor bothered to really listen to her pitch about why they were so great of a client. I want to say that the contract group had a lot of placements with them, and it makes sense now. This was in the 2015/2016 timeframe.