QR codes systems for COVID-19.
Simple tools for bars, restaurants, offices, and other small proximity businesses.
event home rentals
We're a platform for home owners to rent their homes during major sporting events and business happenings around the world.
Building a Sustainable Detroit
Detroit is the birthplace of industrial innovation. Silicon Valley is the home of technological innovation. We will combine the brands of these two great, American geographies to create a unique brand for our venture: Detroit + Silicon Valley Our customers ...
Scalable, distributed property management
Castle lets rental owners put their properties on autopilot. Using software and on-demand labor, we automate the work of property management. Our mission is to rationalize the rental process. We’re taking property rental—an experience that’s near universal, yet ...