| fabricated fittings | fabricated pipe | fabricated rubber products |
| fabricated structural metal | fabricated textile products | facilities support services |
| family clothing stores | family law attorneys | family lawyer |
| family restaurants | family services | farm-product raw materials |
| farm machinery | farm product storage | farm product warehousing |
| farm supply | fasteners-industrial | fast food restaurants |
| federal credit union | federal government-international affairs | federal government-national security |
| federally sponsored credit agencies | federal savings institutions | feet doctor |
| fence | fence dealers | fence materials |
| fencing | ferry | field beans |
| field crops | fine dining restaurants | fine jewelry collection |
| fire insurance | fire protection | fish manufacturer |
| fish market | fish products | fixed facilities |
| flavoring extracts | flavoring extracts manufacturers | flavoring syrups |
| flavoring syrups manufacturers | floor covering stores | flooring mills |
| floor laying | floor work | florist |
| florists-retail | florist supplies | flour |
| flower supplies | flying fields | flying service |
| food crops grown under cover | food preparations | food products-machinery |
| foot & ankle surgery surgeons | foot doctor | foot surgeons |
| footwear | foreign trade | forester |
| foresters-consulting | forestry service | freight transportation arrangement |
| fresh fruit | fresh vegetables | frozen dessert |
| frozen desserts distributors | frozen desserts manufacturers | frozen fruit |
| fryers | fuel dealer | functions related to deposit banking |
| funeral directors | funeral services | furnishings retail |
| furniture | furniture manufacturers | furniture repair |
| furniture stores |
