#1 MSI Express Inc
Serves this area from Newcomerstown, OH (16 mi)
Contract Drug Manufacturers in Guernsey County, OH
The top-ranked contract drug manufacturers serving Guernsey County, OH are MSI Express Inc, Three Rivers Energy LLC and Professionals PRN LLC dba Genesis Oxygen & Sleep Therapy. We list 6 contract drug manufacturers serving Guernsey County, OH. 6 of the providers shown match an active record from U.S. Food and Drug Administration, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Contract Drug Manufacturers serving Guernsey County, OH. 6 providers, 6 of the top 6 verified against federal or state records. Registry records checked on 2026-11-04.
Top 6 ranked contract drug manufacturers for Guernsey County
| # | Provider | Verified records | Based in | Phone |
|---|---|---|---|---|
| 1 | MSI Express Inc | ✓ FDA-registered drug establishment (FEI) #1000122523 | Newcomerstown, OH (16 mi) | — |
| 2 | Three Rivers Energy LLC | ✓ FDA-registered drug establishment (FEI) #3006476595 | OH | — |
| 3 | Professionals PRN LLC dba Genesis Oxygen & Sleep Therapy | ✓ FDA-registered drug establishment (FEI) #1000515352 | South Zanesville, OH (30 mi) | (740) 453-0693 |
| 4 | Gemstone Gas, LLC | ✓ FDA-registered drug establishment (FEI) #3011716426 | New Philadelphia, OH (30 mi) | — |
| 5 | Kleen Test Products Corporation | ✓ FDA-registered drug establishment (FEI) #0001526481 | Strasburg, OH (38 mi) | (330) 878-5586 |
| 6 | Nippon Sanso Matheson, Inc. | ✓ FDA-registered drug establishment (FEI) #3007373734 | Martins Ferry, OH (42 mi) | — |
#2 Three Rivers Energy LLC
Serves this area from OH#3 Professionals PRN LLC dba Genesis Oxygen & Sleep Therapy
Serves this area from South Zanesville, OH (30 mi)Call (740) 453-0693 · Website#4 Gemstone Gas, LLC
Serves this area from New Philadelphia, OH (30 mi)#5 Kleen Test Products Corporation
Serves this area from Strasburg, OH (38 mi)Call (330) 878-5586 · Website#6 Nippon Sanso Matheson, Inc.
Serves this area from Martins Ferry, OH (42 mi)
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Frequently asked questions
How many contract drug manufacturers serve Guernsey County?
We list 6 contract drug manufacturers serving Guernsey County, OH: 0 based there and 6 serving it from nearby. 6 of the top 6 match an active federal or state record, checked on 2026-11-04.
Which contract drug manufacturers serve Guernsey County?
The top-ranked contract drug manufacturers serving Guernsey County, OH are MSI Express Inc, Three Rivers Energy LLC, Professionals PRN LLC dba Genesis Oxygen & Sleep Therapy, Gemstone Gas, LLC and Kleen Test Products Corporation. The full ranked list, with the official records each provider matched, is on this page.
Which contract drug manufacturers serving Guernsey County are verified against official records?
6 of the top 6 match an active official record: MSI Express Inc (U.S. Food and Drug Administration), Three Rivers Energy LLC (U.S. Food and Drug Administration), Professionals PRN LLC dba Genesis Oxygen & Sleep Therapy (U.S. Food and Drug Administration), Gemstone Gas, LLC (U.S. Food and Drug Administration) and Kleen Test Products Corporation (U.S. Food and Drug Administration), and 1 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
What does FDA establishment registration show?
Facilities that manufacture, prepare or process drugs for the U.S. market must register with FDA every year and list their operations. Registration is not an FDA approval of the facility or its products.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .
Communities served
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