Mast Reforestation

Post-wildfire reforestation with its own nursery and seed bank, formerly known as DroneSeed.

Planting & silvicultureSeattle, United States

Mast Reforestation (formerly DroneSeed, founded 2016 in Seattle) develops post-wildfire reforestation services and biomass-burial carbon-removal credits. The company runs the largest US private tree nursery (Cal Forest Nurseries) and Silvaseed seed bank, and is developing carbon credits via deep burial of post-fire biomass. Mast has faced legal challenges including a whistleblower lawsuit in 2025.

What Boreal Tech Brief reported

  1. #0397 Apr 2026 · Launch

    Mast Reforestation Delivers First Biomass Burial Carbon Credits to Royal Bank of Canada

    Seattle-based Mast Reforestation has delivered more than 80% of the removal credits from its MT1 project in Montana, where over 10 million pounds of wildfire-killed trees were buried in an engineered underground chamber. Puro.earth certified 4,277 credits, the largest issuance under its biomass storage methodology. Buyers include Royal Bank of Canada, CNaught, and Muir AI. Mast plans native-conifer reforestation on the site in spring 2026 and is expanding its burial pipeline.