| Company | State | Location | Workers | Notice date |
| Northwest Airlines | OR | ST. PAUL, MN | 27,500 | 1998-08-11 |
| Zenith Electronics | IL | MELROSE PARK, 2407 WEST NORTH AVENUE | 2,260 | 1998-04-01 |
| DynCorp | AL | Fort Rucker | 1,855 | 1998-07-22 |
| Reynolds Metals | AL | Muscle Shoals | 1,600 | 1998-11-02 |
| Tetra and Air Sole Production | OR | — | 1,500 | 1998-02-28 |
| Zionssolutions | IL | Zion, 101 Shiloh Blvd | 801 | 1998-02-25 |
| Amerail - American Passenger Rail Car | IL | CHICAGO, 900 EAST 103RD STREET | 598 | 1998-01-28 |
| Beaverton & Wilsonville | OR | — | 500 | 1998-11-02 |
| Pillowtex | AL | Opelika | 473 | 1998-12-09 |
| International Paper | AL | Mobile | 450 | 1998-12-08 |
| Boeing | KS | — | 407 | 1998-11-30 |
| Boeing | KS | — | 404 | 1998-11-30 |
| Army United States Department of | IL | Rock Island, 1 Rock Island Arsenal # 60 | 358 | 1998-05-07 |
| Northwestern Steel and Wire | IL | STERLING, 121 WALLACE ST BOX 618 | 355 | 1998-10-07 |
| Weyerhaeuser Wood Products | OR | North Bend | 345 | 1998-01-13 |
| Favorite Brands International | IL | MELROSE PARK, 1941 HAWTHORE | 337 | 1998-09-16 |
| Lynden Farms | OR | Portland | 312 | 1998-05-12 |
| Glenbrook Nickel | OR | Riddle | 305 | 1998-01-29 |
| Russell Corp.(Sylacauga) | AL | Sylacauga | 300 | 1998-10-06 |
| Gardiner Mill | OR | GARDINER | 297 | 1998-10-14 |