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Illinois

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Revenues $500 Million to $1 Billion

Company Name

Industry

Location

Revenue

Employees

Afni

Outsourcing and Offshoring

United States, Illinois

$500M to $1B

10001+

SGK

Marketing and Advertising

United States, Illinois

$500M to $1B

5001-10000

Grant Thornton

Accounting

United States, Illinois

$500M to $1B

5001-10000

Addison Group

Staffing and Recruiting

United States, Illinois

$500M to $1B

1001-5000

Diverzify

Facilities Services

United States, Illinois

$500M to $1B

1001-5000

Fermilab

Research

United States, Illinois

$500M to $1B

1001-5000

Heidrick & Struggles

Management Consulting

United States, Illinois

$500M to $1B

1001-5000

NORC at the University of Chicago

Research

United States, Illinois

$500M to $1B

1001-5000

Argonne National Laboratory

Research

United States, Illinois

$500M to $1B

1001-5000

Andy Frain Services

Security and Investigations

United States, Illinois

$500M to $1B

1001-5000

Mu Sigma

Management Consulting

United States, Illinois

$500M to $1B

1001-5000

West Monroe

Management Consulting

United States, Illinois

$500M to $1B

1001-5000

Medix™

Staffing and Recruiting

United States, Illinois

$500M to $1B

501-1000

Information Resources

Marketing and Advertising

United States, Illinois

$500M to $1B

501-1000

ASG Staffing

Staffing and Recruiting

United States, Illinois

$500M to $1B

51-200

CareerViet.vn

Human Resources

United States, Illinois

$500M to $1B

51-200

Morrison & Morrison is now EisnerAmper

Accounting

United States, Illinois

$500M to $1B

51-200

Sierra ITS

Staffing and Recruiting

United States, Illinois

$500M to $1B

51-200

Illinois Business Consulting

Management Consulting

United States, Illinois

$500M to $1B

51-200

Galactic Good Foundation

Marketing and Advertising

United States, Illinois

$500M to $1B

51-200