| 6592 | Automobile sales finance company | |
| 5149 | Automobile scrap, wholesale | |
| 1721 | Automobile seat covers, manufacturing | |
| 5150 | Automobile service station equipment, wholesale | |
| 5050 | Automobile service stations, retail | |
| 6309 | Automobile shippers (forwarding agency) | |
| 7499 | Automobile shows, flower shows and home shows, promoters of | |
| 2899 | Automobile skid chains, made from purchased wire | |
| 2899 | Automobile suspension springs, manufacturing | |
| 5030 | Automobile tire dealers, retail | |
| 5030 | Automobile tires and tubes, wholesale | |
| 3420 | Automobile transporter trailers, multi-car, manufacturing | |
| 3420 | Automobile transporter trailers, single car, manufacturing | |
| 6023 | Automobile transporting service by truck | |
| 1729 | Automobile trimmings, textile, manufacturing | C |
| 5020 | Automobile washing and polishing | |
| 3420 | Automobile wrecker bodies, manufacturing | |
| 3410 | Automobile wreckers, assembling on purchased chassis | |
| 3694 | Automobiles and trucks, toys, manufacturing | |
| 6022 | Automobiles for hire with driver (except taxicab) | |
| 5010 | Automobiles wholesale | |
| 3410 | Automobiles, assembling on chassis of own manufacture | |
| 3694 | Automobiles, children's pedal driven, manufacturing | |
| 3694 | Automobiles, children's, manufacturing | |
| 5010 | Automobiles, new and used, wholesale | |
| 5010 | Automobiles, new, retail | |
| 3694 | Automobiles, toy, manufacturing | |
| 5010 | Automobiles, used, retail | |
| 5010 | Automobiles, wholesale agents and brokers | |
| 5030 | Automotive accessories and parts, secondhand, retail store | |
| 5030 | Automotive accessories, new, wholesale | |
| 5030 | Automotive air-conditioners, new, wholesale | |
| 3130 | Automotive and aircraft wire and cable, made in aluminum wire drawing plants | |
| 3130 | Automotive and aircraft wire and cable, made in copper wire drawing plants | |
| 3130 | Automotive and aircraft wire and cable, made in non-ferrous (except aluminum, copper) wire drawing plants | |
| 3130 | Automotive and aircraft wire and cable, nonferrous, manufacturing | |
| 5020 | Automotive body shops | |
| 5020 | Automotive brake repairing | |
| 5149 | Automotive chemicals, wholesale | |
| 5020 | Automotive electric service | |