Major Employers

i

From international businesses to local entrepreneurs, social service agencies and public administration organizations, St. Charles County has an estimated 10,000 companies and groups working in the community.

 

Here is a list of the 10 largest for-profit employers and 10 largest not-for-profit employers based on reported full-time or FTE employees:


Largest For-Profits 2011

Rank
 Company Location
Employment*
1
 Citi O'Fallon 4,100
2
 MasterCard Worldwide O'Fallon 1,953
3
 True Manufacturing O'Fallon Withheld
4
 Verizon Weldon Spring 1,400
5
 General Motors Wentzville 1,321
6
 MEMC Electronic Materials O'Fallon 1,000
6
 The Boeing Company St. Charles 1,000
7
 Ameristar Casino St. Charles 973
8
 Client Services St. Charles 838
9
 Enterprise Holdings Weldon Spring 722
10
 AT&T Missouri St. Charles 600

*Based on reported full-time or FTE employees

Largest Not-For-Profits 2011

Rank
 Company Location
Employment*
1
 Ft. Zumwalt School District O'Fallon 2,597
2
 Francis Howell School District Unincorporated County 2,069
3
 Wentzville School District Wentzville 1,755
4
 SSM St. Joseph Health Care St. Charles 1,248
5
 St. Charles County Government St. Charles 999
6
 Barnes-Jewish St. Peters Hospital St. Peters 900
7
 SSM St. Joseph Hospital West Lake Saint Louis 895
8
 St. Charles School District St. Charles 765
9
 Lindenwood University St. Charles 550
10
 City of St. Peters St. Peters 548

*Based on reported full-time or FTE employees