For SP+ the parking solutions company I have created signage for parking garages that connect to its parking guide system, along with designing, developing, and asset creation (graphics, photos, and other media) for the company (including social media) and for many sites for its clients (both internal and external use), listed below are several examples of public facing sites:

http://parking.nationalharbor.com/
http://greenwayselfpark.com/
http://aboutparking.com/
http://paloalto.parkingguide.com/
http://nycparking.spplus.com/ (this is an example of all the various *.spplus.com city parking site guides)
http://sanmateo.parkingguide.com/