Run by Greentown Labs.
Greentown Labs runs Go Build in Boston as a corporate-partnered climate and materials cohort; the 2026 edition is with Amazon and the Global CO₂ Initiative at the University of Michigan. Its timeline runs from an April 1, 2026 kickoff through workshops between April and August to a final showcase in October, roughly six months, though no week count is given. Past cohorts in 2019, 2021 and 2023 make the cadence irregular, and the programme page states neither a cash investment nor equity terms.
This programme has notes explaining its undisclosed figures, available in the full dataset.
Every figure above is taken from these pages, published by the programme or its parent organisation.
Last verified 2026-09-22.