Slashing CO2

Founded: 2020

HQ: Menlo Park, CA

Food waste magic.

The Big Idea

One in four food calories produced goes wasted. That’s literal mountains of food, it’s almost biblical. Food breaks down into methane–a gas 84x more potent than CO2–driving 6% of all warming. That’s triple aviation’s footprint. Most US food waste comes from homes and businesses where 30% of all food is tossed. Curbing waste is critical, but separating waste at the source is a simple but effective lever to cut emissions.

How it Works

Mill’s food-transforming bins feed farms, not landfills. The simple, sleek device turns your sloppiest scraps into dried, odorless food grounds. The grounds are turned into chicken feed. Beyond reinventing the humble trash bin, Mill is taking on the entire waste value chain and creating the waste utility of the future by building out a service that links your trash directly to a  waste-to-value processor.

Their Superpower

The team that built Nest and iPod is applying their design wizardry to garbage. Mill’s team has decades of experience working on the world’s most iconic consumer products and is applying these superpowers to a market begging for reinvention. By providing pickup services, they capture the upside from upcycling waste, enabling massive scale with just a few municipal and commercial contracts.


hour or less

compost conversion process


Matt previously co-founded Nest Labs, the first learning thermostat and leading connected home brand. Prior to Nest, Matt started at Apple where he built the software team behind 10 generations of the iPod, was one of the first engineers on the original iPhone, developed 5 more generations of the iPhone, and the first iPad. 


Harry was previously Google’s Director of Hardware. Prior to Google, Matt was the Director of Business Analytics and eCommerce and Head of Business Analytics at Nest Labs.

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Food waste is responsible for 6% of global greenhouse gas emissions

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