| sailboat dealers | sail makers | sash |
| sauce manufacturers | sausage manufacturers | savings institutions |
| sawmill | school | school bus |
| school of business | schools-academic-colleges | schools-academic-secondary |
| schools-universities | schools academic colleges universities | schools academic secondary elementary |
| school service | schools industrial technical | schools trade |
| school supplies | 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 dealers |
| security exchanges | security 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 | 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 |
| snack manufacturer | soap manufacturer | social associations |
| social services | software stores | solid fiber boxes |
| solid fiber boxes manufacturers | solid waste management | souvenir shops |
| special dies | special storage | special trade contractors |
| specialty outpatient clinics | special warehousing | sporting camps |
| sporting goods | sports club | sports managers |
| sports promoters | sports service | 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 | stock bond brokers |
| stock brokers | stone products | stonework |
| storage commercial | storage household | street construction |
| structural steel erection | stuffed toys | stuffed toys manufacturers |
| subdividers | suburban transit | sugar manufacturers |
| sugar raw | sugar raw manufacturers | sunday schools |
| sundries | supermarket | surety insurance |
| surgeons | surgery dentists | surgical appliances |
| surgical hospital | surgical instruments | surgical supply |
| surveying services | surveyors | surveyors-land |
| surveyors-marine | sweater manufacturers | swimming pool contractors |
| swimming pool designer | switching services |
