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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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…” –
1,543 Reviews

Overall Company Rating

4.6 Employees are “Very Satisfied”

Overall CEO Rating

Glenn Johnson
94% Approve

Fermilab HQ: Batavia, IL

A Fermilab Designer said:

“People, people, people. Atmosphere. Subject matter. Being a contractor I have asked for time off on reg basis to go home to see family etc. I have not ONCE had any resistance to this. It is a very…” –
51 Reviews

Overall Company Rating

4.2 Employees are “Very Satisfied”

Overall CEO Rating

Fermilab Director Piermaria J. Oddone

Piermaria J. Oddone
78% Approve

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 Project Manager said:

“Great place to launch your career!!”
“Great people, challenging work, and great environment. Plenty opportunities fro advancement for motivated individuals. Values diverse people and ideas.” –
112 Reviews

Overall Company Rating

3.9 Employees are “Satisfied”

Overall CEO Rating

Christopher M. Crane
Not Yet Rated

BP HQ: London, United Kingdom NYSE: BP

A BP Technical Support Agent said:

“Company is average”
“Its a wide variety of people to get advice from. You will always have a higher up there to assist you.” –
781 Reviews

Overall Company Rating

3.7 Employees are “Satisfied”

Overall CEO Rating

BP Group Chief Executive of BP Robert Dudley

Robert Dudley
90% Approve

Informatica HQ: Redwood City, CA NASDAQ: INFA

We Put 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 organizations to ask…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…” –
290 Reviews

Overall Company Rating

3.9 Employees are “Satisfied”

Overall CEO Rating

Informatica Chairman and CEO Sohaib Abbasi

Sohaib Abbasi
94% Approve

Exelon Generation HQ: Kennett Square, PA

An Exelon Generation Engineer said:

“Exelon provides amazing opportunities for the future and is a great place to work now.”
“Amazing opportunities for advancement with a senior leadership that is truly capable and bends over backwards to help you succeed. Since I began with the company, I have been able to really increase…” –
47 Reviews

Overall Company Rating

3.6 Employees are “Satisfied”

Overall CEO Rating

Kenneth W. Cornew
Not Yet Rated

Emerson Network Power HQ: Columbus, OH

Regardless of your size, you can’t afford for your vital business systems to go down. At Emerson Network Power, we’ve built our capabilities on delivering reliable power, precision cooling…Full Overview

An Emerson Network Power employee said:

“Too long with no career path.”
“Fortune 500 company on your resume.” –
123 Reviews

Overall Company Rating

3.4 Employees say it's “OK”

Overall CEO Rating

Emerson Network Power Chairman President & CEO David N. Farr

David N. Farr
91% 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 Senior Customer Claims Representative said:

“Best and worst job I've ever had.”
“Slightly above average salary, comparatively. FTO n benefits are great. Turnover is so high that those who can handle the stress have solid job security. Yearly bonuses.” –
1,072 Reviews

Overall Company Rating

3.3 Employees say it's “OK”

Overall CEO Rating

Liberty Mutual Insurance President & CEO David H. Long

David H. Long
75% 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 Network Support said:

“Last few years disappointing. No salary increases. Moral was low.”
“They gave a generous yearly bonus.” –
5,552 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
66% Approve

Creme de la Creme HQ: Greenwood Village, CO

A Creme de la Creme Teacher said:

“Good in theory, not well executed”
“Great pay Kids and family are awesome facility is gorgeous” –
27 Reviews

Overall Company Rating

3.1 Employees say it's “OK”

Overall CEO Rating

Bruce Karpas
65% Approve