| Company | State | Location | Workers | Notice date |
| Olin Corp., Winchester Division | IL | East Alton, 600 Powder Mill Road | 836 | 2011-07-27 |
| CH2MHill Plateau Remediation | WA | Richland | 750 | 2011-07-29 |
| Ficosa North America | IN | Berne | 175 | 2011-07-25 |
| Tyson Foods | IA | Council Bluffs | 171 | 2011-07-27 |
| Materials & Energy | WA | Richland | 141 | 2011-07-29 |
| Cellco Partnership | AZ | — | 130 | 2011-07-27 |
| DPI Specialty Foods | MD | 1100 Mercantile Lane, Suite 100, Largo, MD | 89 | 2011-07-25 |
| CXT | NE | Grand Island | 67 | 2011-07-31 |
| Legg Mason | MD | 11155 Red Run Blvd., Owings Mills, MD | 35 | 2011-07-25 |
| Lockheed Martin | MD | Naval Air Station, Patuxent River, Sauffley Road, Bldg 3219, Lexington Park, MD | 15 | 2011-07-28 |
| Ben Franklin | NE | North Platte | 10 | 2011-07-28 |
| Lockheed Martin | CT | Groton | 10 | 2011-07-29 |
| Lockheed Martin | MD | Naval Support Activity, Carderock, 9500 MacArthur Blvd.,Bethesda, MD | 8 | 2011-07-28 |
| Lockheed Martin | IN | Crane | 7 | 2011-07-28 |
| Lockheed Martin | MD | Naval Support Activity, Indian Head, 4386 Security Drive, Indian Head, MD | 6 | 2011-07-28 |