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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 4.4
onPeak is the official housing partner for all your favorite events, conferences, meetings and shows. Tweet us for help with your hotel reservation.
Zippia score 3.8
Smart Resources has a 23-year history of serving the Chicago market with exemplary temporary and direct hire finance & accounting staffing, consistently receiving "best in the industry" awards for several years. Smart Resources had revenues of approximately $13.2 million for the year ended December 31, 2016.
Zippia score 3.8
We aggregate positivity and strive to inspire people to contribute greatly. We engage with and serve current and emerging leaders, consultants and innovators and act as the catalyst to support a positive call to action. COVID-19 has changed the work environment.
Zippia score 3.7
Pierce & Associates Inc is a general contractor primarily engaged in construction (including new work, additions, alterations, remodeling, and repair) of single-family houses.
Zippia score 4.6
Kelly Services, Inc. (Kelly) is a global workforce solutions provider operating throughout the world. Kelly assigns professional and technical employees in the fields of education, legal, health care, and creative services. It has also developed a suite of solutions to help customers manage their workforce. Kelly offers outsourcing, consulting, recruitment, career transition and vendor management services. It operates in seven business segments: Americas Commercial, Americas Professional and Technical (Americas PT), EMEA Commercial, EMEA Professional and Technical (EMEA PT), APAC Commercial, APAC Professional and Technical (APAC PT) and Outsourcing and Consulting Group (OCG). Kelly's workforce solutions are provided to a diversified group of customers through offices in three regions: the Americas, Europe, the Middle East, and Africa (EMEA) and Asia Pacific. On November 16, 2011, it acquired Tradicao Planejamento e Tecnologia de Servicos S.A. and Tradicao Tecnologia e Servicos Ltda.
Zippia score 4.4
The Trupanion pet insurance team has been taking care of pet owners for almost a decade by offering simple, fair, and affordable pet insurance. We are also the only pet medical insurance provider that can pay veterinary hospitals directly through our proprietary software, revolutionizing the reimbursement model.
Zippia score 4.3
To provide exceptional and effective representation to a wide variety of clients, large public corporations and smaller businesses, debtors, creditors committees and trustees, across many industries.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | onPeak | |
| 2 | Smart Resources | |
| 3 | The Strive Group | |
| 4 | Pierce And Associates |