NPG Corporation wants you to know who we are. “Building Our Tomorrow Since 1961, Servicing all of Southern California.” We ca ... rry a Class (A) General Engineering, Class (B) General Building, and (C-12) Grading and Paving Contractors license. With our 60+ years of experience and contractor licensing, we can do any type of asphalt and concrete services that you may need. Hiring NPG will put your mind at rest. We are properly licensed and insured to perform services on your valued properties. We’re fast, we’re efficient, and we are competitive- we are NPG ASPHALT. read more