fundraising

The ‘valley of death’ for climate lies between early-stage funding and scaling up

Jonathan Strimling faced a dilemma. His company had spent nine years working on chemical processes that could turn old cardboard boxes into high-quality building insulation. The good news was the team had finally cracked it: CleanFiber’s technology pumped out insulation — really good insulation. It had fewer contaminants and produced less dust than other cellulose […]

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Windfall Bio is seeing strong demand for its methane-eating microbe startup

When Josh Silverman started shopping around the idea for his methane-eating microbe startup, Windfall Bio, eight years ago, the market just wasn’t ready. Nobody cared about methane, he said. Companies were instead focused on lowering their carbon emissions. But a few years later, the market is starting to come around. Menlo Park–based Windfall Bio raised

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