| BSBeynon Sports Surfaces, INC. | Hunt Valley | MD | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| CECytec Engineered Materials INC | Havre De Grace | MD | Chemical Manufacturing325520 | 100-499 | ◐ LIKELY ACTIVE |
| DGDap Global INC. | Baltimore | MD | Chemical Manufacturing325520 | 100-499 | ◐ LIKELY ACTIVE |
| NPNeutron Products, INC. | Dickerson | MD | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| AWAes Warrior Run Cogeneration Facility | Cumberland | MD | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
Akonni Biosystems INC | Frederick | MD | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| AUAmerican Urethane INC. | Odenton | MD | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| ARAmg Resources CORP | Baltimore | MD | Chemical Manufacturing325131 | — | ◐ LIKELY ACTIVE |
| CLC-care, LLC | Linthicum Heights | MD | Chemical Manufacturing325620 | 100-499 | ◐ LIKELY ACTIVE |
| EPEngineered Polymer Solutions, INC. - Hagerstown | Williamsport | MD | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| RCRicca Chemical CO. | Pocomoke City | MD | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| RCRust-oleum CORP | Williamsport | MD | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| SCSherwin-williams Company | Baltimore | MD | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| TDTilley Distribution | Middle River | MD | Chemical Manufacturing325130 | — | ◐ LIKELY ACTIVE |
| VTVibrantz Technologies | Curtis Bay | MD | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| WRW R Grace and CO – Curtis Bay Works | Curtis Bay | MD | Chemical Manufacturing325130 | — | ◐ LIKELY ACTIVE |
| BIBsc Ind | Baltimore | MD | Chemical Manufacturing325320 | — | ◐ LIKELY ACTIVE |
| KWKemira Water Solutions, INC. | Baltimore | MD | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| NSNaval Surface Warfare Center | Indian Head | MD | Chemical Manufacturing325920 | — | ◐ LIKELY ACTIVE |
Astek Diagnostics INC. | Halethorpe | MD | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
Autolus INC | Gaithersburg | MD | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
Capitol Carbonic CORP | Catonsville | MD | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
Igc Pharma, INC | Potomac | MD | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| APAdell Plastics | Halethorpe | MD | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| BCBaltimore City Composting/veolia Water North America-central, LLC | Curtis Bay | MD | Chemical Manufacturing325311 | — | ◐ LIKELY ACTIVE |
| BCBerkshire Corporation (formerly Disinfexol, Llc) | Rockville | MD | Chemical Manufacturing325612 | — | ◐ LIKELY ACTIVE |
| BBioreliance | Rockville | MD | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| BPBora Pharmaceuticals Injectables INC. | Baltimore | MD | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| CICargill, Inc.-salt Division | White Marsh | MD | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| CCClariant CORP Masterb Atches Div | Millington | MD | Chemical Manufacturing325991 | — | ◐ LIKELY ACTIVE |
| FIFibred-maryland, INC. | Cumberland | MD | Chemical Manufacturing325221 | — | ◐ LIKELY ACTIVE |
| FCFmc CORP. Organic Chemicals Division | Baltimore | MD | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| GBGreenlight Biofuels Princess Anne, LLC | Princess Anne | MD | Chemical Manufacturing325193 | — | ◐ LIKELY ACTIVE |
| HDHemagen Diagnostics, INC. | Baltimore | MD | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| HJHuber, J.m. Corporation | Havre De Grace | MD | Chemical Manufacturing325130 | — | ◐ LIKELY ACTIVE |
Jubilant Cadista Pharmaceuticals, INC. | Salisbury | MD | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| LILinde INC. | Baltimore | MD | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| MBMa Bioservices | Rockville | MD | Chemical Manufacturing325414 | — | ◐ LIKELY ACTIVE |
| MIMacroGenics, Inc._CorpHQ | Rockville | MD | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| MBMaiden Biosciences, INC | Gaithersburg | MD | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| MIMedimmune INC | Frederick | MD | Chemical Manufacturing325414 | — | ◐ LIKELY ACTIVE |
| MLMedimmune LLC | Gaithersburg | MD | Chemical Manufacturing325414 | — | ◐ LIKELY ACTIVE |
| MSMeso Scale Diagnostics, LLC | Rockville | MD | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| MIMillennium Inorganic Chemicals St Helena Plant | Baltimore | MD | Chemical Manufacturing325188 | — | ◐ LIKELY ACTIVE |
| OBOrigin Baltimore Terminal LLC | Baltimore | MD | Chemical Manufacturing325000 | — | ◐ LIKELY ACTIVE |
| PIPrecigen INC | Germantown | MD | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| RCRust-oleum Corporation - Hagerstown | Williamsport | MD | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| SASimplot Ab Retail, INC. | Pocomoke City | MD | Chemical Manufacturing325320 | — | ◐ LIKELY ACTIVE |
| SISpectron, INC. | Elkton | MD | Chemical Manufacturing325188 | — | ◐ LIKELY ACTIVE |
| SPSupernus Pharmaceuticals, INC | Rockville | MD | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |