Mighty Buildings is a construction technology company based in Oakland, CA that is innovating the construction industry by creating beautiful, sustainable, and high-quality homes using advanced materials, patented 3D printing technology, and robotics automation.
Petra is the first robotics company focused on undergrounding utilities. Our undergrounding robot is the first practical and affordable solution able to bore utility tunnels through high grade hard rock, in areas that are the most disaster-prone. Our mission is to make the world a safer place by making utility undergrounding ubiquitous and affordable to all communities.
CleanFiber™ makes high-performance cellulose insulation from recycled corrugated cardboard boxes and other clean sources of high quality fiber. The company was formerly known as Ultracell Insulation and was founded by veteran cellulose installers, who wanted to see this industry thrive despite declining supplies of old newsprint (which is the primary feedstock of the industry today).