Mast Reforestation, a Seattle-based post-wildfire restoration company, has secured $25 million in a Series B funding round. The investment will support the company’s expansion into Biomass Carbon Removal & Storage (BiCRS), a process that prevents carbon emissions by burying fire-damaged trees instead of burning them.

Founded in 2016, Mast has been managing reforestation projects in the U.S. and Canada, specializing in carbon-financed restoration since 2020. The new capital will help accelerate its biomass burial initiatives, starting with the launch of its first project, Mast Wood Preserve MT1 in central Montana. This project focuses on removing fire-killed trees from a 900-acre forest burned in 2021, allowing for new seedling growth while also generating carbon removal credits.

Wildfire-destroyed trees often fuel future fires if left unaddressed. Mast's approach mitigates this risk while permanently locking away carbon. The company estimates that Montana alone has 2.3 million tons of dead trees from wildfires over the past four years, presenting a significant opportunity for carbon sequestration.

“Wildfire-destroyed trees pose both a hazard and an opportunity. By burying this biomass, we lock away additional carbon, clear the way for new seedlings to thrive, and reduce the risk of these trees fueling future wildfires,” said Grant Canary, CEO of Mast Reforestation.

The funding round was led by Pulse Fund and Social Capital, with additional participation from investors including Seven Seven Six, Elemental Impact, Spero Ventures, Thistledown Capital, and others. The company anticipates beginning burial activities in 2025, with the Montana project projected to generate up to 30,000 tons of removal credits through 2026, now available for presale.

“With wildfires worsening and communities being devastated faster than recovery efforts can keep pace, supporting Mast’s work was a clear choice,” said Tenzin Seldon, Founder and Managing Partner of Pulse Fund.