I moved to Chicago, and from the north window of my building, I can look into the offices of three companies that employ people like me (digital design engineer

I moved to Chicago, and from the north window of my building, I can look into the offices of three companies that employ people like me (digital design engineers) that I know of. That view is called the next building. Within a half mile of where I work, I know of more than 30 companies that I can easily hop to. Within a half mile of the CTA train system, there's more than 100 companies that I can hop to. If I extend my search into the nearby suburbs which are well served by Metra, we're now talking about 200-300 companies. Sure, most are small, but a significant number of them aren't.