Am gasit 2012 inregistrate in Ploieşti dintre care
2581 firme cu forma de organizare SRL, 921 firme cu forma de organizare PFA, 160 firme cu forma de organizare SA, 90 firme cu forma de organizare II, 38 firme cu forma de organizare SCA, 12 firme cu forma de organizare IF, 11 firme cu forma de organizare ASF.
Cele mai intalnite activitati dupa cod caen sunt:
4711 - Retail sale in non-specialized stores with food, beverages or tobacco predominating (100 companies),
4120 - Construction of residential and non-residential buildings (95 companies),
4791 - Retail sale via mail order houses or via Internet (112 companies),
6201 - Computer programming activities (73 companies),
5610 - Restaurants and mobile food service activities (97 companies).