| sailboat dealers | sail makers | sanitary paper products |
| sauce manufacturers | sausage manufacturers | sawmill |
| sawmills mills | school | school bus |
| school of business | schools-academic-colleges | schools-academic-secondary |
| schools-universities | schools academic colleges universities | schools academic secondary elementary |
| schools business | school service | schools universities colleges |
| school supplies | schools vocational | scrap materials |
| screen printing | screw machine products | screw manufacturer |
| seafood | seafood manufacturer | seafood products |
| seafood restaurants | seafood wholesale | secondary schools |
| secretarial reporting | secretarial schools | security brokers |
| security control equipment manufacturers | security control systems manufacturers | security dealers |
| security exchanges | security services | security systems services |
| sedation dentistry | self service laundry | semiconductor devices |
| service establishment equipment | services allied to motion pictures | service stations-gasoline |
| service stations-oil | sewage companies | sewage companies-utility |
| sewer | sewing | sheep-lined clothing |
| sheet metal work | ship building | shoe repair |
| shoe repairing | shoes-manufacturers supplies | shoes-manufacturers supplies manufacturers |
| shoeshine parlors | shoe stores | short-term business credit institutions |
| sign dealer | sign manufacturers | signs specialties |
| silver jewelry | silverware ware | single-family housing construction |
| skid dealers | skid manufacturer | skids |
| skilled nursing care facilities | smelter | smoking tobacco |
| snack manufacturer | social associations | social services |
| software stores | solid fiber boxes | solid fiber boxes manufacturers |
| solid waste management | souvenir shops | special academic education schools |
| special dies | special industry machinery | special storage |
| special trade contractors | specialty hospital | specialty outpatient clinics |
| special warehousing | sporting camps | sporting goods |
| sports club | sports managers | sports promoters |
| sports service | spring coil | spring manufacturer |
| state commercial banks | state government-national security | station |
| stationery stores | stationery supplies | stationery tablet related products |
| stationery tablet related products manufacturers | stationery tablets | stationery tablets manufacturers |
| steak restaurants | steel-structural | steel-structural manufacturers |
| steel fabricators | steel forging | steel foundry |
| steel mill | steel pipe | steel wire |
| stitching | stock bond brokers | stock brokers |
| stone products | stonework | storage-batteries manufacturers |
| storage batteries | storage commercial | storage household |
| store fixture manufacturers | street construction | structural steel erection |
| stuffed toys | subdividers | suburban transit |
| sunday schools | sundries | supermarket |
| surety insurance | surgeons | surgeons information bureau |
| surgery dentists | surgical appliances | surgical hospital |
| surgical instruments | surveying services | surveyors |
| surveyors-land | surveyors-marine | sweater manufacturers |
| sweeping service | sweeping service-power | swimming pool contractors |
| swimming pool designer |
