| Clean Textile Systems, LP. D/B/A Clean Care WARN | December 12, 2025 | 69 | — | Buffalo, NY | — |
| Pinnacle City Living WARN | September 16, 2025 | 3 | — | Buffalo, NY | — |
| Pinnacle City Living WARN | September 16, 2025 | 5 | — | Buffalo, NY | — |
| Rite Aid WARN | May 5, 2025 | 11 | — | Buffalo, NY | — |
| Rite Aid WARN | May 5, 2025 | 16 | — | Buffalo, NY | — |
| Rite Aid WARN | May 5, 2025 | 7 | — | Buffalo, NY | — |
| Rite Aid WARN | May 5, 2025 | 14 | — | Buffalo, NY | — |
| Rite Aid WARN | May 5, 2025 | 13 | — | Buffalo, NY | — |
| Rite Aid WARN | May 5, 2025 | 9 | — | Buffalo, NY | — |
| Rite Aid WARN | May 5, 2025 | 10 | — | Buffalo, NY | — |
| Barrette Outdoor Living WARN | February 3, 2025 | 93 | — | Buffalo, NY | — |
| CINQ NY Health Home IPA WARN | January 6, 2025 | 19 | — | Buffalo, NY | — |
| Midwest Transport WARN | September 9, 2024 | 17 | — | Buffalo, NY | — |
| Tesla WARN | May 13, 2024 | 1 | — | Buffalo, NY | — |
| Tesla WARN | May 13, 2024 | 26 | — | Buffalo, NY | — |
| Tesla WARN | May 7, 2024 | 3 | — | Buffalo, NY | — |
| Tesla WARN | May 3, 2024 | 4 | — | Buffalo, NY | — |
| Tesla WARN | April 29, 2024 | 26 | — | Buffalo, NY | — |
| Tesla WARN | April 16, 2024 | 5 | — | Buffalo, NY | — |
| Tesla WARN | April 16, 2024 | 280 | — | Buffalo, NY | — |
| Savarino WARN | August 16, 2023 | 2 | — | Buffalo, NY | — |
| Centerra WARN | August 8, 2023 | 25 | — | Buffalo, NY | — |
| The Buffalo News WARN | July 3, 2023 | 130 | — | Buffalo, NY | — |
| Bitwise Industries WARN | June 14, 2023 | 10 | — | Buffalo, NY | — |
| Athenex WARN | May 12, 2023 | 79 | — | Buffalo, NY | — |
| Medaille University WARN | May 1, 2023 | 412 | — | Buffalo, NY | — |
| Powerflow WARN | March 13, 2023 | 66 | — | Buffalo, NY | — |
| Trio Community Meals WARN | January 30, 2023 | 51 | — | Buffalo, NY | — |
| CTG WARN | June 22, 2021 | 84 | — | Buffalo, NY | — |
| Universal Protection Services, LLC d/b/a Allied Universal Security WARN | December 8, 2020 | 28 | — | Buffalo, NY | — |
| Southwest Airlines WARN | December 3, 2020 | — | — | Buffalo, NY | — |
| CGI Federal WARN | October 1, 2020 | 4 | — | Buffalo, NY | — |
| Le Tote WARN | October 1, 2020 | 39 | — | Buffalo, NY | — |
| SP+ WARN | September 24, 2020 | 90 | — | Buffalo, NY | — |
| P.F. Chang's China Bistro WARN | September 4, 2020 | 64 | — | Buffalo, NY | — |
| Avis Budget Car Rental WARN | August 28, 2020 | — | — | Buffalo, NY | — |
| Faculty Student Association of State University of New York at Buffalo, Inc., dba Campus Dining and Shops, and UBFSA Services LLC dba Three Pillars Catering WARN | July 22, 2020 | 1,401 | — | Buffalo, NY | — |
| New Era Cap WARN | July 7, 2020 | 117 | — | Buffalo, NY | — |
| Allpro Parking WARN | June 24, 2020 | 92 | — | Buffalo, NY | — |
| Bands Visit National Tour WARN | June 16, 2020 | — | — | Buffalo, NY | — |
| Hyatt Regency Buffalo Hotel WARN | May 26, 2020 | 207 | — | Buffalo, NY | — |
| Buffalo Niagara Convention Center Management WARN | April 29, 2020 | 35 | — | Buffalo, NY | — |
| Regal Cinema WARN | April 29, 2020 | — | — | Buffalo, NY | — |
| Enterprise WARN | April 28, 2020 | 93 | — | Buffalo, NY | — |
| Enterprise WARN | April 28, 2020 | 18 | — | Buffalo, NY | — |
| OS Restaurant WARN | April 27, 2020 | 289 | — | Buffalo, NY | — |
| Eat'n Park Hospitality WARN | April 17, 2020 | — | — | Buffalo, NY | — |
| Eat'n Park Hospitality WARN | April 17, 2020 | 83 | — | Buffalo, NY | — |
| Zara WARN | April 16, 2020 | 22 | — | Buffalo, NY | — |
| Abercrombie & Fitch, abercrombie kids, Hollister Co., and Gilly Hicks WARN | April 10, 2020 | 71 | — | Buffalo, NY | — |
| Sear 200 LLC, d/b/a Sear Steakhouse Seventh Hospitality LLC d/b/a Legasea WARN | April 2, 2020 | 73 | — | Buffalo, NY | — |
| Unicell Body WARN | April 2, 2020 | 25 | — | Buffalo, NY | — |
| Millennium Hotel Buffalo WARN | March 31, 2020 | 104 | — | Buffalo, NY | — |
| Greyhound Lines WARN | March 30, 2020 | 19 | — | Buffalo, NY | — |
| A&M Administration LLC dba Charlotte Russe WARN | March 27, 2020 | 21 | — | Buffalo, NY | — |
| CRST dba Installs WARN | March 25, 2020 | 179 | — | Buffalo, NY | — |
| Capital Management WARN | March 24, 2020 | 52 | — | Buffalo, NY | — |
| Eye Care and Vision Associates Ophthalmology WARN | March 23, 2020 | 48 | — | Buffalo, NY | — |
| Sunny Sky Products WARN | March 16, 2020 | 21 | — | Buffalo, NY | — |
| Uniquest Hospitality WARN | March 16, 2020 | 22 | — | Buffalo, NY | — |
| Panasonic Solar North America WARN | February 26, 2020 | 375 | — | Buffalo, NY | — |
| Transform SR WARN | November 8, 2019 | 45 | — | Buffalo, NY | — |
| Transform KM WARN | August 29, 2019 | 58 | — | Buffalo, NY | — |
| Morrison Healthcare Food and Nutrition Services at Erie Medical Center WARN | January 6, 2019 | 172 | — | Buffalo, NY | — |
| Atlas Health Care Linen Services Co., LLC d/b/a Clarus Linen System WARN | December 19, 2018 | 146 | — | Buffalo, NY | — |
| Centerstone Linen Services, LLC d/b/a Clarus Linen System WARN | December 19, 2018 | 24 | — | Buffalo, NY | — |
| Emerald South Nursing & Rehabilitation Center WARN | November 19, 2018 | 160 | — | Buffalo, NY | — |
| Bak WARN | November 1, 2018 | 78 | — | Buffalo, NY | — |
| The Research Foundation for The State University of New York WARN | September 28, 2018 | 29 | — | Buffalo, NY | — |
| The Research Foundation for The State University of New York WARN | September 28, 2018 | 11 | — | Buffalo, NY | — |
| Hebeler Process Solutions WARN | June 28, 2018 | 1 | — | Buffalo, NY | — |
| Aspire of WNY WARN | April 4, 2018 | 42 | — | Buffalo, NY | — |
| Community Services for Every1 WARN | March 30, 2018 | 31 | — | Buffalo, NY | — |
| Genesee Valley Group Health Association dba Lifetime Health Medical WARN | October 2, 2017 | 77 | — | Buffalo, NY | — |
| Greenwich Associates WARN | September 13, 2017 | 149 | — | Buffalo, NY | — |
| Will Foods WARN | February 23, 2017 | 71 | — | Buffalo, NY | — |
| Penske Vehicle WARN | January 30, 2017 | 1 | — | Buffalo, NY | — |
| Operations of Global Spectrum, L.P. d/b/a Spectra Venue Management WARN | January 24, 2017 | 194 | — | Buffalo, NY | — |
| The Resource Center WARN | December 6, 2016 | 57 | — | Buffalo, NY | — |
| MGS Mfg.Group, Inc.- Buffalo Division WARN | November 16, 2016 | 62 | — | Buffalo, NY | — |
| Buflovak WARN | June 17, 2016 | 53 | — | Buffalo, NY | — |
| WPH Midtown Associates, L.P. @ the Holiday Inn Hotel WARN | May 31, 2016 | 82 | — | Buffalo, NY | — |
| Kerry Inc. on behalf of its affiliate Island Oasis Manufacturing WARN | May 20, 2016 | 51 | — | Buffalo, NY | — |
| Catholic Charities of Buffalo, New York WARN | March 30, 2016 | 65 | — | Buffalo, NY | — |
| American HomePatient Regional Billing Center WARN | January 27, 2016 | 42 | — | Buffalo, NY | — |
| Macy's McKinley Store WARN | January 6, 2016 | 75 | — | Buffalo, NY | — |
| Coyne International Enterprises WARN | August 11, 2015 | — | — | Buffalo, NY | — |
| Niagara LaSalle WARN | April 30, 2015 | 49 | — | Buffalo, NY | — |
| Ethox Medical WARN | October 1, 2014 | 53 | — | Buffalo, NY | — |
| Zemco Industries, Inc. d/b/a/ Tyson Foods WARN | October 1, 2014 | 287 | — | Buffalo, NY | — |
| Fenner Precision WARN | September 25, 2014 | 60 | — | Buffalo, NY | — |
| Rural/Metro WARN | August 21, 2014 | 43 | — | Buffalo, NY | — |
| United Airlines WARN | July 3, 2014 | 71 | — | Buffalo, NY | — |
| Reit Management & Research WARN | June 30, 2014 | 1 | — | Buffalo, NY | — |
| Main Court WARN | May 22, 2014 | 2 | — | Buffalo, NY | — |
| Main Seneca WARN | May 22, 2014 | 36 | — | Buffalo, NY | — |
| Main Seneca WARN | May 22, 2014 | 66 | — | Buffalo, NY | — |
| Alcohol and Drug Dependency WARN | December 27, 2013 | 8 | — | Buffalo, NY | — |
| Alcohol and Drug Dependency WARN | December 27, 2013 | 5 | — | Buffalo, NY | — |
| Alcohol and Drug Dependency WARN | December 27, 2013 | 13 | — | Buffalo, NY | — |
| Alcohol and Drug Dependency WARN | December 27, 2013 | 53 | — | Buffalo, NY | — |
| PLPL Development, LLC d/b/a Budwey's Supermarket WARN | November 13, 2013 | 156 | — | Buffalo, NY | — |
| Will Poultry WARN | September 30, 2013 | 113 | — | Buffalo, NY | — |
| Niagara Ceramics WARN | September 9, 2013 | 110 | — | Buffalo, NY | — |
| Sodexo WARN | August 30, 2013 | 41 | — | Buffalo, NY | — |
| DRS Integrated Defense Systems and WARN | March 28, 2013 | 36 | — | Buffalo, NY | — |
| The Saint John Baptist Hospice Buffalo Inpatient Unit/The Center for Hospice & Palliative Care WARN | October 17, 2012 | 24 | — | Buffalo, NY | — |
| Regional Elite Airline WARN | September 5, 2012 | 63 | — | Buffalo, NY | — |
| Baker Victory WARN | August 7, 2012 | 21 | — | Buffalo, NY | — |
| HSBC WARN | May 23, 2012 | 77 | — | Buffalo, NY | — |
| Capital One WARN | May 7, 2012 | 78 | — | Buffalo, NY | — |
| Hostess Brands WARN | May 7, 2012 | 38 | — | Buffalo, NY | — |
| Sheehan Health Network/Sheehan Memorial Hospital WARN | April 9, 2012 | 147 | — | Buffalo, NY | — |
| Contract Pharmaceuticals Limited Niagara WARN | October 27, 2011 | 38 | — | Buffalo, NY | — |
| Contract Pharmaceuticals Limited Niagara WARN | August 29, 2011 | 128 | — | Buffalo, NY | — |
| Joseph S. Mattina Community Health Center WARN | August 5, 2011 | 51 | — | Buffalo, NY | — |
| Prestige Maintenance USA Target Department Store #1013 WARN | July 25, 2011 | 4 | — | Buffalo, NY | — |
| Contract Pharmaceuticals Limited Niagara WARN | June 17, 2011 | 33 | — | Buffalo, NY | — |
| Ford Motor WARN | June 9, 2011 | 150 | — | Buffalo, NY | — |
| Flextronics Americas WARN | June 1, 2011 | 9 | — | Buffalo, NY | — |
| Flextronics Americas WARN | June 1, 2011 | 8 | — | Buffalo, NY | — |
| Flextronics Americas WARN | June 1, 2011 | 7 | — | Buffalo, NY | — |
| Sodexo, Inc @ SUNY Buffalo State College WARN | April 8, 2011 | 221 | — | Buffalo, NY | — |
| American Red Cross Blood Services TR Center WARN | March 17, 2011 | 51 | — | Buffalo, NY | — |
| Contract Pharmaceuticals Limited Niagara WARN | February 4, 2011 | 6 | — | Buffalo, NY | — |
| The Research Foundation of SUNY Buffalo State Campus WARN | December 2, 2010 | 62 | — | Buffalo, NY | — |
| SBLI USA Mutual Life Insurance Company, Inc. Buffalo Customer Center WARN | June 15, 2010 | 8 | — | Buffalo, NY | — |
| Rich Food Products WARN | April 12, 2010 | 31 | — | Buffalo, NY | — |
| Henkel WARN | February 25, 2010 | 4 | — | Buffalo, NY | — |
| Henkel WARN | February 2, 2010 | 13 | — | Buffalo, NY | — |
| St. Francis Geriatric & Health Care WARN | November 25, 2009 | 180 | — | Buffalo, NY | — |
| Pyramid Management WARN | September 28, 2009 | 40 | — | Buffalo, NY | — |
| Henkel WARN | September 11, 2009 | 16 | — | Buffalo, NY | — |
| Henkel WARN | June 26, 2009 | 20 | — | Buffalo, NY | — |
| Sperian Protective Gloves WARN | June 26, 2009 | 55 | — | Buffalo, NY | — |
| Ford Motor WARN | June 4, 2009 | 87 | — | Buffalo, NY | — |
| Ford Motor WARN | May 21, 2009 | 39 | — | Buffalo, NY | — |
| Ultron Lift WARN | May 19, 2009 | 57 | — | Buffalo, NY | — |
| Husky Injection Molding WARN | May 1, 2009 | 32 | — | Buffalo, NY | — |
| SPX Process Equipment-WCB Flow Products WARN | April 23, 2009 | 46 | — | Buffalo, NY | — |
| Ford Motor WARN | March 20, 2009 | 206 | — | Buffalo, NY | — |
| Ford Motor WARN | March 17, 2009 | 50 | — | Buffalo, NY | — |
| Grace Manor Health Care Facility WARN | March 13, 2009 | 233 | — | Buffalo, NY | — |
| DHL Express WARN | December 8, 2008 | 17 | — | Buffalo, NY | — |
| Republic Airways Buffalo Base Chautauqua Airlines WARN | July 16, 2008 | — | — | Buffalo, NY | — |
| Great Lakes Bancorp WARN | December 17, 2007 | 117 | — | Buffalo, NY | — |
| American Axle & Manufacturing WARN | September 19, 2007 | 264 | — | Buffalo, NY | — |
| Univera Healthcare WARN | July 25, 2007 | 75 | — | Buffalo, NY | — |
| TransUnion Settlement Solutions WARN | November 28, 2006 | 97 | — | Buffalo, NY | — |
| HMX Tailored WARN | September 5, 2006 | 140 | — | Buffalo, NY | — |
| Northrop Grumman WARN | August 2, 2006 | 5 | — | Buffalo, NY | — |
| Home Market Foods, Inc. Freezer Queen division WARN | July 20, 2006 | 170 | — | Buffalo, NY | — |