| FIFluoron, INC | Elkton | MD | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| PCPtfe Compounds, INC. | Elkton | MD | Chemical Manufacturing325220 | 1-19 | ◇ UNVERIFIED |
| AIAshland INC | Elkton | MD | Chemical Manufacturing325132 | — | ◇ UNVERIFIED |
| CCCentral Chemical CORP | Elkton | MD | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| EFElkton Farm Firehole | Elkton | MD | Chemical Manufacturing325920 | — | ◇ UNVERIFIED |
| GWGore, W.l. - Elk Creek Plant | Elkton | MD | Chemical Manufacturing325221 | — | ◇ UNVERIFIED |
| HRHard Rock Materials - St. Augustine Cbp | Elkton | FL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LOLorco of Maryland | Elkton | MD | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| MLMckinney Log & Lumber INC | Elkton | KY | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| NJNew Jersey Fireworks | Elkton | MD | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SCScotty's Contracting | Elkton | KY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TCTodd County Ready Mix | Elkton | KY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| VIVirginia Industrial Plastics, INC. | Elkton | VA | Plastics and Rubber Products Manufacturing326121 | 1-19 | ◇ UNVERIFIED |
| WLW L Gore & Associates INC | Elkton | MD | Textile Mills313310 | — | ◇ UNVERIFIED |
| AIArdco Incorporated | Elkton | KY | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| CCCustom Cooler INC | Elkton | KY | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| ESEmbroidery Stuff LLC | Elkton | MD | Textile Product Mills314999 | — | ◇ UNVERIFIED |
| GFGeorge's Family Farms LLC | Elkton | VA | Machinery Manufacturing333241 | — | ◇ UNVERIFIED |
| HWHopkinsville Wood Plant 2 | Elkton | KY | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| MMerck | Elkton | VA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| NKNickolaos Kappatos Enterprises INC. | Elkton | MD | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| TCTwin City Fan Companies, LTD | Elkton | SD | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
