Foster Interstate Media, Inc.

Foster Interstate Media, Inc. is an out-of-home advertising company based in Pleasant Hill, California, in the San Francisco Bay Area, that specializes in the design and construction of billboards. The company describes its focus as building what it calls iconic billboards, indicating an emphasis on developing prominent outdoor advertising structures rather than simply reselling existing inventory. Beyond construction, Foster Interstate offers development and leasing services, which together suggest that the company both creates billboard structures and manages the advertising space on them for clients and property owners.

This combination places it in the role of a media owner and developer, involved in siting, permitting, and building displays as well as leasing the resulting faces to advertisers. The company operates from a Contra Costa Boulevard address in Pleasant Hill and provides direct contact by phone and email for prospective clients and partners. Its website references completed projects but offers limited public detail about specific billboard formats, dimensions, or the full geographic extent of its inventory, and it presents its work through a concise overview of design, construction, development, and leasing activities.

Given its Bay Area base and focus on structure development, Foster Interstate positions itself as a regional operator serving Northern California and nearby markets. Overall, the company emphasizes the physical creation of high-impact billboard structures and the management of advertising space on them, presenting itself to brands, agencies, and landowners as a partner for developing and leasing prominent outdoor advertising locations in the communities where it builds.