Well so far looks like #8 is winning with the votes, I like it and it does meet the initial spec of being simple and corporate looking and "I can envision this symbol on things like google maps, and recognize it, in every day life" as nickhiggins123 said
I will leave it open to comment/vote for the next day or so and will announce the winner after.
I like number 8 the most too, but when I tried viewing it on a small screen the text changed from looking like "PARKBYTE" TO LOOKING LIKE "PAR
HBYTE" The letter K appears as a letter H on very small screens. I'm not a graphic designer but there must be a way to make it appear correctly on small screens.