They may not be a software company in the same way that Microsoft or Oracle is, but their product is definately software at the core of it. Whether they provide the actual software program or provide it as a service is MOOT. In the computer business, if it isn't hardware, then its software.
According to Dow Jones their business is classified as "Business Support Services'. And that service is provided by software, which runs on hardware. And of course, it's all moot.