All state
Allstate
NJ Manufactures ins codes is 426
NEW JERSEY MANUFACTURERS' INS CO, SULLIVAN WAY, CN 00128, TRENTON, NJ 08628 1-800-232-6600
Same company as Progressive Group which owns Drive New Jersey Insurance Company who is ins code 135 I know this from personal experience from getting rear ended by one of their drivers with insurance code 135. Info for this company was hard to find.
Plymouth Rock out of Lindon, NJ
134
Geico
Travelers
Paa00001249642
high point safety and insurance company
the company would need to contact NJ MVC & request a corp code which is # similar to a driver license # but it is for your company instead of an individual person. after you get the corp code you can register your vehicle(s) in the company name, providing you have it insured 1st