 Handrail Design INC | Columbia | PA | Fabricated Metal Product Manufacturing332323 | 20-99 | ● ACTIVE |
 Columbia Organ Works INC | Columbia | PA | Miscellaneous Manufacturing339992 | 1-19 | ● ACTIVE |
 Asc Engineered Solutions Llc/columbia Fka Anvil | Columbia | PA | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| SASa Alloys | Columbia | PA | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| CRColumbia Reduction CO | Columbia | PA | Primary Metal Manufacturing331000 | — | ◐ LIKELY ACTIVE |
| ITI T T CORP Engineered Valves | Columbia | PA | Fabricated Metal Product Manufacturing332919 | — | ◇ UNVERIFIED |
| SCScantron CORP | Columbia | PA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| ULUS Lock & Hdwr Co/columbia | Columbia | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BLBCI - Lancaster Division | Columbia | PA | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| PDPour Dog | Columbia | PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| ZZoetropolis | Columbia | PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| KCKeystone Cap Company | Columbia | PA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◇ UNVERIFIED |
 Keystone Tactical Supply, LLC | Columbia | PA | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| ABA & B Pallet & Recycling | Columbia | PA | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| FMFederal Metals (uno- Formerly Colonial Metals) | Columbia | PA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| GWGordon Waste Company, Incorporated | Columbia | PA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| LSLiving Stones Masonry | Columbia | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
