For what it's worth, those German Mittelstand companies are the exact opposite of what's usually referred to as a unicorn. They are small to medium-size, multi-generational family-run and family-owned businesses that focus on a very narrow set of products, such as just making gears for automative applications, or ball bearings, or blades. The people working there often work there their whole life, with the understanding that the company doesn't take any gambles and will do its utmost to not lay them off even in recessions such as right now.