(618) 692-9745

Largest Employers – Southwestern Illinois

 

Company County Employees Source
Scott Air Force Base St. Clair County 13,000 6
Amazon Inc. Madison County 4,100 6
Southern Illinois University Edwardsville Madison County 3,500 6
Hospital Sisters Health System St. Clair County 2,350 3
Southwestern Illinois College St. Clair County 1,403 5
U.S. Steel Madison County 1,200 5
Southwestern Illinois Health Facilities Inc. Madison County 1,190 6
Olin Brass Madison County 1,118 9
Philips 66 Wood River Refinery Madison County 1,100 2
Alton Memorial Hospital Madison County 1,017 9
Madison County Madison County 984 2
Gateway Regional Medical Center Madison County 955 6
East St. Louis School District St. Clair County 950 2
Edwardsville Community Unit School District #7 Madison County 922 6
St. Clair County St. Clair County 850 5
ASF Keystone Madison County 830 5
Alton Community Unit School District #11 Madison County 806 9
Basler Electric Co. Madison County 800 5
Catholic Diocese of Belleville Madison County 800 3
Park Fairmount Inc Madison County 800 8
GEODIS Madison County 750 1
SSM Health St. Anthony Madison County 733 9
Army & Air Force Exchange Svc St. Clair County 730 1
Gmri Inc – Red Lobster St. Clair County 730 1
Allsup Inc. St. Clair County 700 6
Belleville Public School District #118 St. Clair County 700 3
FKG Oil Company Madison County 700 3
Lanter Transport Inc. St. Clair County 700 3
O’Fallon Community Consolidated School District #90 St. Clair County 680 2
SIHF Healthcare St. Clair County 664 6
Granite City Community Unit School District #9 Madison County 650 5
Casino Queen Hotel and Casino St. Clair County 647 6
Lewis & Clark Community College Madison County 641 6
Amsted Rail Madison County 637 7
Cahokia School District #187 St. Clair County 637 6
Woolpert St. Clair County 622 6
Penn National Gaming- Alton Madison County 570 6
GRP Mechanical Co. Inc. Madison County 565 6
Owens-Brockway Machinery Manufacturing Plant Madison County 550 3
Triad Community School District Madison County 543 5
West Star Aviation Madison County 540 6
Henderson Trucking St. Clair County 530 6
Rockwood Pigments NA Inc St. Clair County 515 8
Southern Illinois Healthcare Foundation St. Clair County 512 6
Alton Square Madison County 500 3
Belleville Shoe St. Clair County 500 6
Cerro Flow Products Inc. St. Clair County 500 3
Glik Stores Madison County 500 3
Mascoutah Community School St. Clair County 500 1

Sources:
(1) “Selectory” Dun & Bradstreet, www.selectory.com.
(2) Information from organization.
(3) “Sorkins Directory” Sorkins, www.sorkins.com.
(4) “ReferenceUSA” InfoUSA, www.referenceusa.com.
(5) St. Louis Regional Chamber internal sources.
(6) St. Louis Business Journal
(7) St. Louis Post-Dispatch
(8) “Hoovers” Dun & Bradstreet, www.hoovers.com
(9) Internet, other

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