Pharmaceutical Manufacturing Companies in Illinois

Illinois has approximately 13,000 manufacturing establishments and 570,000 manufacturing employees. Illinois is a top-five manufacturing state, with Chicago as a metal fabrication and food processing center, Peoria as Caterpillar's headquarters, and a vast network of industrial suppliers.

Illinois is one of the leading states for pharmaceutical manufacturing. Pharmaceutical manufacturing includes companies that produce prescription drugs, over-the-counter medications, generic drugs, and active pharmaceutical ingredients (APIs). The US pharmaceutical industry spans large-scale continuous process manufacturing of solid dosage forms to sterile fill-finish operations for injectables and biologics.

Solid Dosage Manufacturers: Companies producing tablets, capsules, and oral solid dosage forms using granulation, compression, and coating equipment.

Sterile Fill-Finish Operations: Facilities performing aseptic filling of vials, syringes, and IV bags in cleanroom environments.

API Manufacturers: Chemical manufacturing plants producing active pharmaceutical ingredients through synthesis and purification processes.

CDMOs: Contract development and manufacturing organizations providing drug manufacturing services to pharma companies.

Packaging & Labeling Operations: Companies providing pharmaceutical packaging, serialization, and labeling in compliance with FDA track-and-trace requirements.

Major industrial centers in Illinois include Chicago, Rockford, Peoria, Aurora, Joliet, and Elgin. These cities have concentrations of manufacturers across sectors including metal fabrication, food processing manufacturing, and chemical manufacturing.