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100 North Main Street
O'Fallon, MO 63366
Phone: 636-379-5532
Email: [email protected]

©2018-2019 City of O'Fallon, Missouri
 

Major Employers

As testament to O’Fallon’s economic vigor, large corporations like Citi and Mastercard International recognize the City of O’Fallon as a great place to call home. O’Fallon considers its businesses, both large and small, and the employees that serve them to be partners in maintaining the City as one of the nation’s best and most attractive places to do business.
Citi in O'Fallon, MO

Largest Employers

Largest Employers

O'Fallon Casting machinist

Manufacturing Firms

Manufacturing Firms

True Manufacturing HQ

Headquarters & Operations

Headquarters & Operations

International firm building in O'Fallon

International Firms

International Firms

O’Fallon Fact: O’Fallon hosts the area’s largest Independence Day celebration, the Heritage & Freedom Fest. Held at Ozzie Smith Sports Complex, more than 100,000 attend the 3-day event featuring nationally-known musicians, a carnival and midway, parade and fireworks.