| Nassau Event Operations WARN | June 19, 2020 | 1,419 | — | Uniondale, NY | — |
| Collins Building WARN | May 1, 2020 | 60 | — | Uniondale, NY | — |
| Marriott Hotel Services, Inc. dba Long Island Marriott Hotel and Conference Center WARN | April 10, 2020 | 211 | — | Uniondale, NY | — |
| Bostwick Laboratories WARN | March 13, 2017 | 128 | — | Uniondale, NY | — |
| SMG @ the Nassau Veterans Memorial Coliseum WARN | April 13, 2015 | 2,540 | — | Uniondale, NY | — |
| LabCorp of America Holdings/Dianon Systems, Inc. dba Integrated Oncology WARN | July 16, 2014 | 19 | — | Uniondale, NY | — |
| LabCorp of America Holdings/Dianon Systems, Inc. dba Integrated Oncology WARN | May 22, 2014 | 24 | — | Uniondale, NY | — |
| Citigroup WARN | November 13, 2012 | 100 | — | Uniondale, NY | — |
| Matrix Medical Network WARN | August 3, 2012 | 48 | — | Uniondale, NY | — |
| Matrix Medical Network WARN | August 3, 2012 | 19 | — | Uniondale, NY | — |
| Interstate National Dealer WARN | June 4, 2010 | 2 | — | Uniondale, NY | — |
| Interstate National Dealer WARN | March 29, 2010 | 6 | — | Uniondale, NY | — |
| Interstate National Dealer WARN | March 4, 2010 | 48 | — | Uniondale, NY | — |
| Interstate National Dealer WARN | February 2, 2010 | 36 | — | Uniondale, NY | — |
| ProfitCenter Software Division of Systemax WARN | May 29, 2009 | 36 | — | Uniondale, NY | — |
| Fortunoff Holdings, LLC Corporate Headquarters WARN | February 9, 2009 | 378 | — | Uniondale, NY | — |
| Harry M. Stevens, LLC doing business as ARAMARK Sports and Entertainment WARN | March 4, 2008 | 303 | — | Uniondale, NY | — |