Hear about Donnel Baird's ambitious plan to rip the fossil fuel infrastructure out of aging buildings and upgrade it with smarter, cleaner, healthier technology.

Rain, a startup building aerial fire-fighting tech, has closed a seed-round of 9.7 million led by DBL partners.

Magrathea, a start-up company located in Oakland, CA, completed its seed round, raising $10 million to make magnesium metal from seawater and brine using an innovative new technology.