You've listed a ton of tools, but not every office employee uses those, and I hope that payroll software isn't costing $1000 per employee/year. To get to those

You've listed a ton of tools, but not every office employee uses those, and I hope that payroll software isn't costing $1000 per employee/year. To get to those large numbers, you'll need to hand-pick companies that have few non-specialized employees.