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We figured out the best professional companies to work for in Illinois using data on salaries, company financial health, and employee diversity. You can also search for the best professional companies to work for in any other state or city.

Zippia score 4.1
Founded in 1994, Eagle Flexible Packaging is an innovative printer and converter of flexible packaging specializing in Preformed Pouches, Roll Fed Film, Inno-Lok and Laminate Structures. An in-house Prepress Department enables us to provide the utmost in quality printing, control and flexibility. Utilizing state-of-the-art technologies such as, Direct Laser Engraving (in-the-round-imaging, seamless plates, etc.) and a defect detection system ensures the highest quality and consistency. Theyr are committed to providing unparalleled quality products coupled with responsive and professional communication. Their goal is to be a company that customers want to do business with. They will always look to increase their value to their customers through continuous improvement efforts and technological advancements. Their organization is dynamic and ever evolving to meet the needs and wants of the market and their customer as competencies and resources allow.
Zippia score 4.0
Fermi Research Alliance, LLC offers scientific research services. The company is based in Batavia, Illinois. Fermi Research Alliance, LLC operates as a joint venture between University of Chicago and Universities Research Association.
Zippia score 3.8
High Wire Networks delivers high-quality professional services, low voltage installations, commercial electrical services, break/fix solutions and more across North America, and around the world. We deliver through the top resellers, system integrators, and manufacturers in the world, and are proud to extend their brand to their clients, allowing them to extend their reach and their brand, not ours.
Zippia score 4.2
Traffic Management, Inc. is a privately owned minority-business-based company in Southern California. TMI is a largely anonymous company whose complete knowledge of traffic control and management is integral to the daily flow of the lives of the region's commuters. Its engineers design the traffic plans that result in lane closures due to road repairs, large events and big infrastructure projects.
Zippia score 4.0
Employment & Employer Services (E&ES) partners with local businesses in high-demand, growing industries throughout the Chicagoland region and connects local job seekers with these high demand career opportunities and quality jobs .
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Eagle Flexible Packaging | |
| 2 | Fermi Research Alliance | |
| 3 | High Wire Networks |