| MPMccormick Paint Works Company | Rockville | MD | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| MMelwood | Upper Marlboro | MD | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| MSMerial Select | Berlin | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| NJNew Jersey Fireworks | Elkton | MD | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NNNew Ngc INC (dba National Gypsum Co) | Belcamp | MD | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| NCNoxell CORP. | Cockeysville | MD | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| NLNutramax Laboratories | Edgewood | MD | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| PCPemco CORP - Yard 56 | Baltimore | MD | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| PPPharmaceutical Preperation Manufacturing | Hunt Valley | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| PIPharmaceutics International INC. | Cockeysville | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| PIPharmaceutics International, INC. | Hunt Valley | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| PIPlastipak INC | Havre De Grace | MD | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| PCPq CORP. | Baltimore | MD | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| RIRegenxbio, INC. | Rockville | MD | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| RCReichhold Chem INC. | Baltimore | MD | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| RPRockwood Pigments N a INC | Beltsville | MD | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
| SCSasol Chemicals (usa) LLC | Baltimore | MD | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| SWSherwin Williams Cleaning Solutions | Havre De Grace | MD | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| SCSherwin-williams Company D/b/a Duron | Beltsville | MD | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| SUShire U.s. Manufacturing | Owings Mills | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| SSSouthern States Cooperative, INC - Queen Anne's County Service | Centreville | MD | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| SSSouthern States Coop, INC. - Frederick | Frederick | MD | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
Sun Chemical CORP | Williamsport | MD | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| SISyngene International LTD. | Baltimore | MD | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| TGTexas Gulf Industries, INC. | Baltimore | MD | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| TSThe Sun Products Corporation | Baltimore | MD | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| TCTishcon CORP | Salisbury | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| UWU.s. Water Services | Aberdeen | MD | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| VHVireo Health | Hurlock | MD | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| VMVorbeck Materials CORP. | Jessup | MD | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| WDWecare Denali, LLC | Woodbine | MD | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| WPWes Pharma, INC | Westminster | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| WAWillard Agri-services of Mt. Airy | Maryland | MD | Chemical Manufacturing325312 | — | ◇ UNVERIFIED |
| AIAancra, INC. | Bethesda | MD | Chemical Manufacturing325414 | — | ◐ LIKELY ACTIVE |
| ABAnnapolis Branch 17 | Annapolis | MD | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |
| AMAnnapolis, MD | Annapolis | MD | Chemical Manufacturing325910 | 1-19 | ◐ LIKELY ACTIVE |
| AIApogene, INC. | Rockville | MD | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| AFAsrc Federal Facilities Logistics LLC | Beltsville | MD | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| AFAstraZeneca Frederick Manufacturing Center | Frederick | MD | Chemical Manufacturing325414 | 500+ | ◐ LIKELY ACTIVE |
| APAurinia Pharma US INC | Rockville | MD | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| BBBaltimore Biopark | Baltimore | MD | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| BBBaltimore Branch 19 | Baltimore | MD | Chemical Manufacturing325120 | 20-99 | ◐ LIKELY ACTIVE |
| BBBaltimore BWI | Harmans | MD | Chemical Manufacturing325412 | 500+ | ◐ LIKELY ACTIVE |
| BPBaltimore Plant | Baltimore | MD | Beverage and Tobacco Product Manufacturing312111 | 20-99 | ◐ LIKELY ACTIVE |
| BDBD Diagnostic Systems - Baltimore | Sparks Glencoe | MD | Chemical Manufacturing325413 | 500+ | ◐ LIKELY ACTIVE |
| BLBiosabre LLC | Chevy Chase | MD | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| BBBladensburg Branch 27 | Bladensburg | MD | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |
| CMCAPS Maryland | Beltsville | MD | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| CSCargill Salt White Marsh | White Marsh | MD | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| CCCEL-SCI Corp -San Tomas | Elkridge | MD | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |