Here is a little article about firewalls for your network. Cisco, juniper, Sonicwall, Fortinet, Dlink, Netgear, Linksys- to name a few- are all providers of firewalls for various situations.
For your business you should really review with your IT company, or internal staff, what firewall you are using to protect your assets. Unfortunately a lot of IT providers will put in a off the shelf consumer (home user) firewall for their business network.
"Yeah but they don't do much on their network other then sometimes surf around".
That is a common excuse IT providers use in explaining to their customers. It's possible they are not versed in network security, prosumer firewall products or the differences.