What keeps me up at night is the fact that there’s still food in the dumpsters.

Every year, tens of billions of pounds of perfectly edible food are thrown out by restaurants, groceries, catering companies, and delis.

In Chicago, two computer science Ph.D.s–Rajesh Karmani and Caleb Phillips–are trying to bring that number down to zero, with a little bit of logistics and a lot of code. “What keeps me up at night is the fact that there’s still food in the dumpsters,” says Phillips.

Their company–Zero Percent–started out simply, somewhere between Karmani’s home and the University of Illinois at Urbana-Champaign, where he was a grad student. “I started it to solve a problem I saw at Einstein Bagels,” he says.

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