Nothing guaranteed to be what you are looking for or good companies. I believe most of these aren't what you'd consider a "Temp" agency but you can ask.

Robert Half

http://www.roberthalftechnology.com/

TEK Systems

http://www.teksystems.com/

MegaForce, LLC

http://www.megaforceusa.com

Spherion

http://www.spherion.com/

Power IT

http://www.poweritcorp.com

Midwest Consulting Group

http://www.mcginfo.com