If you are a smaller business, then you might do well with Intego's VirusBarrier and NetBarrier X8 offerings. Using the company's experiences in protection of home Mac devices, Intego designed the software to be optimally used by about 10 or so Mac devices. The software does a great job with a limited number of devices.
If your business needs to protect up to 100 devices, Flextivity Complete will grant you that security but unfortunately this product does not have expansion beyond 100 devices which limits it to small businesses.
Likelihood to recommend: 6/10
Starting from $3,50 /month per device, Flextivity occupies a unique niche in the market in that it's the only product to offer a tightly integrated security and activity monitoring solution to small businesses. Customers can buy each one separately or they have the option to buy the fully integrated solution. Volume discounts and annual pricing are available.