Largest Employeers – 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