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Top Companies in Warrenville, IL

Glassdoor brings you an inside look at the top rated companies in Warrenville based upon employee reviews.

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110 of 53 Companies
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Insight Global HQ: Atlanta, GA

An Insight Global Tier I/Tier II POS Support said:

“Down Fall Of Contractors - Naperville/Warrenville, IL”
“1) I got out of the contract, you can too. There's better offers out there, keep looking and use other interviews as a bargaining chip. If Insight Global really wants you, they will pay you what you…” –
1,890 Reviews

Overall Company Rating

4.6 Employees are “Very Satisfied”

Overall CEO Rating

Glenn Johnson
95% Approve

Fermilab HQ: Batavia, IL

A Fermilab Intern said:

“Really interesting project working alongside an experienced mentor. I also had the opportunity to see lots of experiments, and had a lot of fun with the other interns who were working there too.” –
55 Reviews

Overall Company Rating

4.0 Employees are “Satisfied”

Overall CEO Rating

Fermilab Laboratory Director Nigel Lockyer

Nigel Lockyer
Not Yet Rated

Exelon HQ: Chicago, IL NYSE: EXC

Exelon is powered by our people and culture Exelon Corporation is one of the nation’s largest electric utilities with more than $23.5 billion in annual revenues and thousands of employees across the…Full Overview

An Exelon Senior Engineer said:

“Strong team of engineers and colleagues. Overall atmosphere was very helpful and inviting. The cafeteria was able to give out a lot of food” –
148 Reviews

Overall Company Rating

4.0 Employees are “Satisfied”

Overall CEO Rating

Christopher M. Crane
99% Approve

Informatica HQ: Redwood City, CA NASDAQ: INFA

We Put Information Potential to Work. We believe the information potential is endless—and data integration is more important than ever. We believe it is the bedrock of truth that enables…Full Overview

An Informatica QA Engineer said:

“Its a okay type company”
“Good technology, skilled and innovative engineers, good work life balance, flexible environment, friendly and techincally sound manager. You learn a lot, there cannot be single day when you dont…” –
437 Reviews

Overall Company Rating

4.2 Employees are “Very Satisfied”

Overall CEO Rating

Informatica Chairman and CEO Sohaib Abbasi

Sohaib Abbasi
96% Approve

Exelon Generation HQ: Kennett Square, PA

An Exelon Generation Safety Analysis Engineer said:

“Excellent work life balance! Amazing support of military deployment.”
“Excellent work life balance. Very supportive of maternity leave and military deployment of husband. Great benefits. Excellent salaries and fair raises. Very supportive of career development.” –
58 Reviews

Overall Company Rating

3.7 Employees are “Satisfied”

Overall CEO Rating

Kenneth W. Cornew
84% Approve

Paychex HQ: Rochester, NY NASDAQ: PAYX

Paychex, Inc. is a leading provider of payroll, human resource, and benefits outsourcing solutions for small- to medium-sized businesses. The company offers comprehensive payroll services, including…Full Overview

A Paychex Customer Service Supervisor said:

“Typical corporate structure.”
“Good benefits and stock options” –
689 Reviews

Overall Company Rating

3.7 Employees are “Satisfied”

Overall CEO Rating

Paychex President and CEO Martin Mucci

Martin Mucci
89% Approve

BP HQ: London, United Kingdom NYSE: BP

A BP Assistant said:

“It was a great place to work-I'd love to go back. I only left due to a reduction in force.”
“I had friendly and cooperative co-workers, the office environment was comfortable to work in efficiently, the hours were flexible and the pay & benefits were very good for the Western Suburbs.” –
879 Reviews

Overall Company Rating

3.6 Employees are “Satisfied”

Overall CEO Rating

BP Group Chief Executive of BP Robert Dudley

Robert Dudley
87% Approve

Liberty Mutual Insurance HQ: Boston, MA

At Liberty Mutual Insurance, doing the right thing is essential to all that we do. Our commitment to building and sustaining a talented and diverse workforce has helped us to become a global leader…Full Overview

A Liberty Mutual Insurance Claims Specialist said:

“Great training/ benefits, but cube life gets stale”
“Great pay, managers that will listen to your needs/concerns, opportunities for advancement ( as long as you have a college degree), rewarded for going above and beyond” –
1,192 Reviews

Overall Company Rating

3.4 Employees say it's “OK”

Overall CEO Rating

Liberty Mutual Insurance President & CEO David H. Long

David H. Long
81% Approve

AT&T HQ: Dallas, TX NYSE: T

At AT&T, our passion to serve extends beyond our customers to our employees. Our people have helped to make us the No. 1 communications company in the world, and in return, we work hard to maintain…Full Overview

An AT&T BCS Sales said:

“Let someone else be the start”
“Phone concessions and with the company being nation wide now there is always hope that you could move to another location. Vacation and PDO days are the best. Phone concessions and with the company…” –
6,232 Reviews

Overall Company Rating

3.3 Employees say it's “OK”

Overall CEO Rating

AT&T Chairman and CEO Randall L. Stephenson

Randall L. Stephenson
69% Approve

URS Corporation, an AECOM company HQ: San Francisco, CA NYSE: URS

About AECOM With nearly 100,000 employees — including architects, engineers, designers, planners, scientists and management and construction services professionals — serving clients in more than…Full Overview

An URS Corporation, an AECOM company Electrical Engineer I said:

“URS - "The best work of your life?"”
“Large company. Good pay. Good work life balance. There is a lot of knowledge and experience at the Warrenville office. You can learn a great deal from these people. When you get put on a project with…” –
671 Reviews

Overall Company Rating

3.2 Employees say it's “OK”

Overall CEO Rating

URS Corporation, an AECOM company Chairman, President, and CEO Martin M. Koffel

Martin M. Koffel
59% Approve