Pre IPO, a car bought at a startup before the company went public. Funny!

Level SF, walking tours business!

Hogwash! Parked outside of the restaurant Hogwash in San Francisco.

PRS★COM. Someone's business?

Business Professor?

Hot pie! Pizza food truck!

Doughnut! On a donut truck!

Ryan San Francisco, a San Francisco realtor, with their own website on the car!

Farm bus! Amazing

AT&T. Really!?

Farmbus. A bus that carries food to and from the farm. Fantastic.

Ballare Dance Center! A great plate matching their business

Litlte Mountain! Looks like it's referencing the preschool on the bumper sticker.

Incredible plate - No PG&E - the power company in California, promoting their solar business.

Pool Merced! Referring to their business.

College Pro! A plate for their business.

Almonte? Someone's name? Someone's business? Almonte, Ontario?

Looks like a license plate for a business that has "Captol" or similar in its name.