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100 North Main Street
O'Fallon, MO 63366
Phone: 636-379-5532
Email: econdev@ofallon.mo.us

©2018 City of O'Fallon, Missouri
 

Largest Employers

T

he most populous city in St. Charles County, O’Fallon is also home to some of the area’s largest employers. Listed below are the 25 largest employers in O’Fallon, Missouri.

 Business NameProduct or ServiceEmployees
1CitiFinancial Services3500
2Mastercard InternationalGlobal technology headquarters2530
3Fort Zumwalt School DistrictEducation2055
4True ManufacturingFreezers and Commercial Coolers ManufacturerN/A
5Progress West HospitalMedical services425
6MEMCSilicon wafer manufacturer400
7Wal-Mart SupercenterDiscount retail department store370
8SAK ConstructionPipe rehabilitation and tunneling contractor365
9Delmar Gardens / Garden Villas of O'FallonSkilled nursing care and retirement community355
10Allianz Global Corporate & SpecialtyCorporate and Specialty insurance company295
11WalgreensRetail drug store280
12SynergeticsSurgical instruments and supplies275
13McDonaldsFast food restaurant265
14Schnucks MarketGrocery store260
15Air Evac LifeteamCorporate headquarters for medical air transportation245
16Level 3 CommunicationsVoice, internet, and data networking solutions for business240
17Shop 'n SaveGrocery store215
18Nortek Global HVACHeating and cooling components205
19Schneider ElectricComputer hardware and software150
20The Phoenix GroupPOS equipment technology150
21McKesson CorporationPharmaceutical wholesaler150
22O'Fallon CastingNon-ferrous investment casting foundry145
23TargetDepartment store140
24DierbergsGrocery store140
25Lowe's Home CenterHome improvement supplies and services135

Source: City of O’Fallon Economic Development Department

Manufacturing Firms

Manufacturing Firms

Manufacturing Firms

International Firms

International Firms

International Firms