| EAEastalco Aluminum CO | Frederick | MD | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| FAFrederick Asphalt Co/essroc Site | Frederick | MD | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| IRIntracel Resources LLC | Frederick | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| KPKite Pharma, INC. | Frederick | MD | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| LALafarge Aggregates & Concrete | Frederick | MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LTLife Technologies | Frederick | MD | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
Life Technologies | Frederick | MD | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
| MGMetre - General INC | Frederick | CO | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| PCPcc Composites | Frederick | CO | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PIProlist INC | Frederick | MD | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| SSSouthern States Coop, INC. - Frederick | Frederick | MD | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| WCWerres Corporation | Frederick | MD | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| WSWilcoxon Sensing Technologies | Frederick | MD | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| 0D01- Denver Metal Sales Manufacturing Corporation | Frederick | CO | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| 3F342 Frederick MD | Frederick | MD | Food Manufacturing311811 | 20-99 | ◐ LIKELY ACTIVE |
| ACAbsolute Controls LLC | Frederick | MD | Computer and Electronic Product Manufacturing334512 | — | ◐ LIKELY ACTIVE |
| AAArnold Aviation Dynamics LLC | Frederick | MD | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| AFAstraZeneca Frederick Manufacturing Center | Frederick | MD | Chemical Manufacturing325414 | 500+ | ◐ LIKELY ACTIVE |
| AAzabu | Frederick | MD | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| BSBarton Supply Frederick | Frederick | CO | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| BCBig Cork Vineyards | Frederick | MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| BCBlystone Consulting Services, L.l.c | Frederick | MD | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
Celebration Cellars Winery, LLC | Frederick | MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| CMCreative Mechanical & Welding Services, INC. | Frederick | CO | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| DSDeviant Spirits | Frederick | CO | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| DMDfa-dmd-frederick Md | Frederick | MD | Food Manufacturing311511 | 100-499 | ◐ LIKELY ACTIVE |
| DSDiamond Spas, Inc. | Frederick | CO | Fabricated Metal Product Manufacturing332510 | 20-99 | ◐ LIKELY ACTIVE |
| EBExpress Biotech International, INC. | Frederick | MD | Chemical Manufacturing325414 | — | ◐ LIKELY ACTIVE |
| FFrederick | Frederick | MD | Food Manufacturing311511 | 1-19 | ◐ LIKELY ACTIVE |
| FBFrederick Branch 18 | Frederick | MD | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |
| FLFrederick Lab | Frederick | MD | Computer and Electronic Product Manufacturing334516 | 1-19 | ◐ LIKELY ACTIVE |
| FMFrederick MD Millwork | Frederick | MD | Wood Product Manufacturing321918 | 20-99 | ◐ LIKELY ACTIVE |
| HHHidden Hills Farm and Vineyard | Frederick | MD | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| HHHidden Hills Farm and Vineyard | Frederick | MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| HPHidden Peaks Spirits | Frederick | CO | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| KPKite Pharma TCF05 Manufacturing Facility | Frederick | MD | Chemical Manufacturing325414 | 100-499 | ◐ LIKELY ACTIVE |
| MCMaysteel Colorado, LLC | Frederick | CO | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| MDMetrie Distribution - Baltimore | Frederick | MD | Wood Product Manufacturing321918 | 20-99 | ◐ LIKELY ACTIVE |
| OPOtter Products - Frederick Distribution Center | Frederick | CO | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| PPPilot Plant | Frederick | MD | Chemical Manufacturing325414 | 100-499 | ◐ LIKELY ACTIVE |
| PDPine Distilling, LLC | Frederick | MD | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| QJQuantum J's Canning | Frederick | CO | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| SJS & J Food Sales LLC | Frederick | OK | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| SISynoptics, INC | Frederick | MD | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
| TSTrue Standard Distilling Company | Frederick | MD | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| URUncle Ralphs Cookies | Frederick | MD | Food Manufacturing311821 | 1-19 | ◐ LIKELY ACTIVE |
| UPUnited Plate Glass Company (Frederick) | Frederick | MD | Nonmetallic Mineral Product Manufacturing327215 | 1-19 | ◐ LIKELY ACTIVE |
| ZBZeager Bros., Inc - Frederick | Frederick | PA | Wood Product Manufacturing321999 | 1-19 | ◐ LIKELY ACTIVE |
| ZBZeager Bros., Inc - Frederick | Frederick | MD | Wood Product Manufacturing321999 | 1-19 | ◐ LIKELY ACTIVE |
| CTCcr Tech LLC | Frederick | MD | Computer and Electronic Product Manufacturing334112 | — | ◐ LIKELY ACTIVE |