I use TriNet at my company, and the cost is about made up for by the savings in the health care plans alone. Factor in the benefits of someone else handling th

I use TriNet at my company, and the cost is about made up for by the savings in the health care plans alone. Factor in the benefits of someone else handling the work, and it is a no brainer for us. Note that the avg wage of TriNet companies is over $100k, whereas Administaff is around $60k. I think Administaff has a much broader base of client companies, but TriNet is higher end. TriNet's only weakness is not having an integrated 401k, but it is not too hard to link Fidelity to it.