|
| 1429 | Scoria mining | |
| 1711 | Scouring and combing textile fibres | |
| 2424 | Scouring cleansers (e.g., pastes, powders), manufacturing | |
| 5139 | Scouring cleansers, wholesale | |
| 2424 | Scouring pads, soap impregnated, manufacturing | |
| 9199 | Scouting organization | |
| 7112 | Scow leasing (except financial) without operator | |
| 3511 | Scows, building | |
| 2720 | Scrap and dross aluminum, refining into ingot | |
| 5149 | Scrap and waste materials, wholesale | |
| 5149 | Scrap metal (except automobile), wholesale | |
| 5149 | Scrap metal salvage, automobile wreckers, wholesale | |
| 5149 | Scrap, rubber, wholesale | |
| 2221 | Scrapbooks and refills, manufacturing | |
| 5139 | Scrapbooks, wholesale | |
| 2924 | Scraper loaders, underground mining type, manufacturing | |
| 2924 | Scrapers, construction type, manufacturing | |
| 2029 | Scratching posts, for cats, manufacturing | |
| 2924 | Screeds and screeding machines, manufacturing | |
| 2811 | Screen doors, metal frame, manufacturing | |
| 2221 | Screen printing (except on textile fabrics) | |
| 1810 | Screen printing clothing (except men's and boy's), for the trade | |
| 2109 | Screen printing labels and tags | |
| 1810 | Screen printing men's and boy's clothing, for the trade | |
| 1810 | Screen printing men's and boy's jackets | |
| 1810 | Screen printing men's and boy's shirts | |
| 2221 | Screen printing paper documents (e.g., pictures, large-format banners), without publishing | |
| 1810 | Screen printing T-shirts, for the trade | |
| 1810 | Screen printing womens' dresses | |
| 1810 | Screen printing women's jackets | |
| 1810 | Screen printing women's shirts and blouses | |
| 1810 | Screen printing women's sportswear | |
| 2422 | Screen process inks, manufacturing | |
| 2919 | Screening and sifting machines, general industrial type, manufacturing | |
| 5150 | Screening machinery and equipment, industrial, wholesale | |
| 2924 | Screening machinery, portable, manufacturing | |
| 2924 | Screening machinery, stationary, manufacturing | |
| 1030 | Screening peat | |
| 1010 | Screening plants, anthracite | |
| 1010 | Screening plants, bituminous coal | |
