BizSugar.com › Startups › Density Device: Mobile Employees Find Empty Spots to Work

Counting the number of people in a room seems like a pretty simple task, and not one with a whole lot of practical value.
But that’s not the case for Density. The San Francisco-based company is actually completely based around that concept.
The company makes a gadget that can be installed on the door frame of a business to count the people who come and go. You might wonder why anyone would find such a thing useful.