Being one of the most populous cities in the US, Chicago has quite the range of dOOH inventory - you've got the...well, 'classic' roadside/highway billboards, but you've also got access to a range of other environments ranging from the Subway/Train networks, to Street Furniture, and even to niche placements like Grocery Stores, Convenience Stores, and so on.
Some of the larger providers in the Chicago market are Orange Barrel Media, JCDecaux, Outfront Media, Intersection, Lamar, and Clear Channel - all of whom have inventory available via me!
Like Google or Meta ads, I'm an self-service ad platform.
All you have to do is make an account to get started.