Sucking up CO2

Founded: 2018

HQ: San Francisco, CA

Carbon removal by bio-oil injection.

Big Picture

Every year the world produces over 100 gigatons of biomass waste in the form of sawdust, nutshells, corn stover, and other agricultural byproducts. Managing this waste can be expensive, so much of it is burned or left to rot, releasing greenhouse gases into the atmosphere. Capturing the carbon content from just a fraction of this waste could remove billions of tons of CO2 from the atmosphere. 

How it Works

Charm converts waste biomass into bio-oil through fast pyrolysis. That means heating things like plant waste up to 500ºC for a few seconds in an oxygen-free chamber. This process produces bio-oil, a liquid chemical mixture sometimes used today as a fuel. Instead, Charm injects it in underground wells as negative emissions, or reforms it to produce green hydrogen as a fuel or industrial chemical.

Unfair Advantage

What sets them apart from other carbon removal efforts is the focus on bio-oil production rather than seeking to produce a pure stream of CO2. It enables the conversion of cheap inputs such as waste into high-value products like carbon removals, while leveraging an extensive built infrastructure for moving and storing bio-oil. This will allow Charm to rapidly scale their supply of carbon removals.


Tons of CO2e

removed for every ton of bio-oil sequestered


Peter is also the CEO and co-founder of Segment, the world’s leading customer data platform. 

Follow: @reinpk


Before co-founding Charm, Kelly was a mechanical design engineer with aerospace companies Astra and Planet. 

Follow: @kellyghering


Sean was previously an embedded systems and electronics engineer with Planet, XUV Lasers, and Rocketship Systems Inc.

Follow: @logiclow

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