| WRIV | | - | 1328409 |
| WRLD | | Personal Credit Institutions | 108385 |
| WRLGF | | - | 1733968 |
| WRN | | Metal Mining | 1364125 |
| WRPT | | Services-Business Services, NEC | 1842138 |
| WS | | Steel Works, Blast Furnaces & Rolling & Finishing Mills | 1968487 |
| WSBC | | National Commercial Banks | 203596 |
| WSBF | | Savings Institution, Federally Chartered | 1569994 |
| WSBK | | Savings Institutions, Not Federally Chartered | 2047235 |
| WSC | | Services-Miscellaneous Equipment Rental & Leasing | 1647088 |
| WSFS | | National Commercial Banks | 828944 |
| WSHP | | Retail-Miscellaneous Retail | 2048271 |
| WSM | | Retail-Home Furniture, Furnishings & Equipment Stores | 719955 |
| WSO | | Wholesale-Hardware & Plumbing & Heating Equipment & Supplies | 105016 |
| WSR | | Real Estate Investment Trusts | 1175535 |
| WST | | Surgical & Medical Instruments & Apparatus | 105770 |
| WSTN | | Blank Checks | 2076192 |
| WSTRF | | Miscellaneous Metal Ores | 1621906 |
| WT | | Security Brokers, Dealers & Flotation Companies | 880631 |
| WTBA | | State Commercial Banks | 1166928 |
| WTER | | Wholesale-Groceries & Related Products | 1532390 |
| WTF | | Security & Commodity Brokers, Dealers, Exchanges & Services | 1987363 |
| WTFC | | State Commercial Banks | 1015328 |
| WTG | | Services-Computer Programming, Data Processing, Etc. | 2053927 |
| WTI | | Crude Petroleum & Natural Gas | 1288403 |
| WTKWY | | - | 861967 |
| WTM | | Fire, Marine & Casualty Insurance | 776867 |
| WTMA | | Miscellaneous Electrical Machinery, Equipment & Supplies | 1866226 |
| WTO | | Electronic & Other Electrical Equipment (No Computer Equip) | 1789299 |
| WTRG | | Water Supply | 78128 |
| WTS | | Miscellaneous Fabricated Metal Products | 795403 |
| WTTR | | Oil & Gas Field Services, NEC | 1693256 |
| WTW | | Insurance Agents, Brokers & Service | 1140536 |
| WU | | Services-Business Services, NEC | 1365135 |
| WULF | | Finance Services | 1083301 |
| WVE | | Pharmaceutical Preparations | 1631574 |
| WVVI | | Beverages | 838875 |
| WW | | Services-Personal Services | 105319 |
| WWD | | Electrical Industrial Apparatus | 108312 |
| WWR | | Metal Mining | 839470 |
| WWW | | Footwear, (No Rubber) | 110471 |
| WXM | | Construction - Special Trade Contractors | 1979610 |
| WY | | Real Estate Investment Trusts | 106535 |
| WYFI | | Finance Services | 2042022 |
| WYGC | | Services-Management Consulting Services | 723533 |
| WYHG | | Sausages & Other Prepared Meat Products | 1999860 |
| WYNN | | Hotels & Motels | 1174922 |
| WYTC | | Telegraph & Other Message Communications | 1560143 |
| WYY | | Services-Computer Integrated Systems Design | 1034760 |
| XAGE | | Soap, Detergents, Cleang Preparations, Perfumes, Cosmetics | 1842939 |
