How to let companies know that a company like ours is here

were mbb productions based in california and we just got access to some billboards in los angeles, and i need some guidance on how to inform companies that were here, were an outdoor media company looking to get bigger companies to work with, anything helps on how we would put our foot in the door.

thanks,.

Are you trying to rent advertising space on billboards to ad agencies? I’m unclear of what your goal is.