Photo Among the companies expected to be worth $1 billion or more are ones focused on drones, hotel booking, staffing for human resources, food delivery and other on-demand services. It used to be a rare thing when start-ups were valued at $1 billion or more by their investors. Now it’s become so common that there are at least 131 start-ups boasting such valuations and a term — “ unicorns ” — to refer to […]
