Can anyone recommend a commercial moving company in Chicago to relocate my office?

Our company is moving to a new office space across Chicago in about 2 months. We have about 30 workstations, server equipment, filing systems, and a break room to move. I assumed we could just hire any local movers but someone told me we need commercial movers specifically. Is that true? What's actually different about commercial moving vs residential? And how do we minimize downtime, ideally we'd be operational again by Monday after a weekend move.