| BAMIA 2 WARN | July 1, 2024 | 21 | — | Riverhead, NY | — |
| Delta Apparel WARN | June 30, 2024 | 6 | — | Riverhead, NY | — |
| ADI of NY WARN | April 7, 2020 | 10 | — | Riverhead, NY | — |
| Eagle Auto Mall WARN | April 7, 2020 | 25 | — | Riverhead, NY | — |
| Eagle Auto Mall Sales, Inc. dba Eagle Chevrolet WARN | April 7, 2020 | 30 | — | Riverhead, NY | — |
| Guess? WARN | April 6, 2020 | — | — | Riverhead, NY | — |
| Kmart Store #04868 WARN | August 21, 2018 | 65 | — | Riverhead, NY | — |
| Bishop McGann Mercy Diocesan High School WARN | March 13, 2018 | 115 | — | Riverhead, NY | — |
| St. Isidore Elementary School WARN | March 13, 2018 | 20 | — | Riverhead, NY | — |
| Luxfer Magtech WARN | November 22, 2017 | 60 | — | Riverhead, NY | — |
| Suffolk County National Bank WARN | October 28, 2016 | 57 | — | Riverhead, NY | — |
| Suffolk County National Bank WARN | October 28, 2016 | 10 | — | Riverhead, NY | — |
| Developmental Disabilities Institute WARN | January 4, 2016 | 26 | — | Riverhead, NY | — |
| The Great Atlantic Pacific Tea WARN | July 18, 2015 | 102 | — | Riverhead, NY | — |
| ProSource Technologies WARN | April 10, 2014 | 9 | — | Riverhead, NY | — |
| AmeriGas Propane WARN | July 26, 2013 | 9 | — | Riverhead, NY | — |
| Prestige Maintenance USA Target Department Store #1818 WARN | July 25, 2011 | 4 | — | Riverhead, NY | — |
| Hear WARN | May 20, 2011 | 2 | — | Riverhead, NY | — |
| Cablevision Systems WARN | November 9, 2010 | 26 | — | Riverhead, NY | — |