#1 AltaThera Pharmaceuticals LLC
Based in Chicago, IL
Call (312) 445-8900 · WebsiteContract Drug Manufacturers in Chicago, IL
The top-ranked contract drug manufacturers serving Chicago, IL are AltaThera Pharmaceuticals LLC, Assemblers and Bajaj Medical, LLC. We list 127 contract drug manufacturers serving Chicago, IL. 30 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 Chicago, IL (Cook County). 127 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked contract drug manufacturers for Chicago
#2 Assemblers
Based in Chicago, ILCall (773) 378-3000 · Website#3 Bajaj Medical, LLC
Based in Chicago, ILCall (855) 332-2525 · Website#4 CellTrans Inc.
Based in Chicago, IL#5 Maroon Biotech
Based in Chicago, ILCall (312) 432-9820 · Website#6 Primrose Candy Company
Based in Chicago, ILCall (773) 276-9522 · Website#7 Vantage Oleochemicals, Inc.
Based in Chicago, ILCall (773) 376-9000 · Website#8 Kashiv BioSciences, LLC
Serves this area from Chicago, IL (3 mi)#9 Korex Chicago LLC
Serves this area from IL#10 Dhaliwal Labs North, LLC
Serves this area from Bedford Park, IL (6 mi)Call (312) 690-7734 · Website
20 more providers serving this area
- Nalco Company, LLC, Bedford Park, IL (7 mi)
- Ingredion Incorporated, Bedford Park, IL (8 mi)
- Univar Solutions USA LLC, Bedford Park, IL (8 mi)
- Vee Pak, LLC dba Voyant Beauty, Countryside, IL (10 mi)
- Airgas USA, LLC, Countryside, IL (10 mi)
- Vee Pak, LLC dba Voyant Beauty, Countryside, IL (10 mi)
- Paket Corporation, Chicago, IL (11 mi)
- Fresenius Kabi USA, LLC, IL
- Fresenius Kabi USA, LLC, Melrose Park, IL (11 mi)
- Menasha Packaging Company LLC, Alsip, IL (11 mi)
- Linde Gas & Equipment Inc., Alsip, IL (12 mi)
- Dental Technologies, Inc., Lincolnwood, IL (12 mi)
- Microbiological Testing & Consulting, LLC, Alsip, IL (12 mi)
- Linde Gas & Equipment Inc., Hillside, IL (12 mi)
- GC America Inc., Alsip, IL (12 mi)
- Blistex Inc., Oak Brook, IL (12 mi)
- Patrin Pharma, Inc, Niles, IL (13 mi)
- Rna Pharma, LLC, Blue Island, IL (13 mi)
- McCrone Associates, Inc., Westmont, IL (14 mi)
- AVA, Inc., Willowbrook, IL (14 mi)
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Frequently asked questions
How many contract drug manufacturers serve Chicago?
We list 127 contract drug manufacturers serving Chicago, IL: 7 based there and 120 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which contract drug manufacturers serve Chicago?
The top-ranked contract drug manufacturers serving Chicago, IL are AltaThera Pharmaceuticals LLC, Assemblers, Bajaj Medical, LLC, CellTrans Inc. and Maroon Biotech. The full ranked list, with the official records each provider matched, is on this page.
Which contract drug manufacturers serving Chicago are verified against official records?
10 of the top 10 match an active official record: AltaThera Pharmaceuticals LLC (U.S. Food and Drug Administration), Assemblers (U.S. Food and Drug Administration), Bajaj Medical, LLC (U.S. Food and Drug Administration), CellTrans Inc. (U.S. Food and Drug Administration) and Maroon Biotech (U.S. Food and Drug Administration), and 5 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 .