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CMS Energy Overview

CMS Energy, based in Jackson, Michigan, is an energy company that is focused principally on utility operations in Michigan.
The staff at CMS Energy come from unusually diverse demographic backgrounds. The company is 24.6% female and 48.6% ethnic minorities. CMS Energy employees are slightly more likely to be members of the Democratic Party than the Republican Party, with 55.3% of employees identifying as members of the Democratic Party. Despite their political differences, employees at CMS Energy seem to be happy. The company has great employee retention with staff members usually staying for 3.7 years.
Based in Michigan, CMS Energy is a key player in the utilities industry with 7,887 employees and an annual revenue of $6.5B.


Electric Utility





Founded in



Jackson, MI


Organization Type


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The Team At CMS Energy

Key People
  • Rejji Hayes (Chief Financial Officer)
  • Patti Poppe (President and CEO)

CMS Energy Reviews

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Zippia UserAugust 2020


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What Do You Like About Working There?

Being competent on an expert level, helping internal and external customers achieve their goals in an excellent and timely manner. The people I worked with and the customers I helped. Being able to work with a broad range of customers, from the individual residential customer to the commercial/industrial, corporate, municipal, state and federal customers. Paid medical and PTO. Show More

What DON'T You Like About Working There?

Having to experience the harsh, demeaning and disrespectful treatment from those in supervision over me, from my direct supervisor and above. Inequitable and insufficient remuneration (poor pay for too much effort). Show More

What Are Your Favorite Benefits/Perks?

Paid vacation time and holidays. Show More
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CMS Energy Rankings

CMS Energy is ranked #80 on the Best Utilities Companies to Work For in America list. Zippia's Best Places to Work lists provide unbiased, data-based evaluations of companies. Rankings are based on government and proprietary data on salaries, company financial health, and employee diversity.

Read more about how we rank companies.

CMS Energy Careers

On average, employees at CMS Energy stay with the company for 3.7 years. Employees most commonly join CMS Energy after leaving Wing Zone. When they leave CMS Energy, they most frequently get their next job at Bechtel.

Average Length of Employment

4.2 years
CMS Energy
3.7 years
Sempra Energy
3.3 years

Top Employers Before CMS Energy

Wing Zone
15.5 %

Top Employers After CMS Energy

8.1 %

CMS Energy Employee Demographics

Diversity Score
We calculated the diversity score of companies by measuring multiple factors, including the ethnic background, gender identity, and language skills of their workforce.

CMS Energy Employees Education

Of the 7,887 employees at CMS Energy, 8.7% attended Michigan State University. Employees at CMS Energy most frequently majored in Engineering, and most employees’ highest level of education is a Bachelors.

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CMS Energy Employee Political Affiliation

CMS Energy employees are most likely to be members of the Democratic Party. The largest donation made to a political party by an CMS Energy employee was by Patricia Poppe. Patricia Poppe donated $11,000 to the Democratic Party.

Employee Political Donations

NameascdescJob TitleascdescPartyascdescDonationascdesc
Patricia PoppeSenior Vice President
Patricia Poppe
Senior Vice President
Senior Vice President
Democratic Party
Democratic Party
$11,000Democratic Party
Laura MountcastleFinance
Laura Mountcastle
Democratic Party
Democratic Party
$7,500Democratic Party
Brian RichSenior Vice President
Brian Rich
Senior Vice President
Senior Vice President
Democratic Party
Democratic Party
$6,750Democratic Party
AMY PlasterExecutive Director
AMY Plaster
Executive Director
Executive Director
Republican Party
Republican Party
$3,750Republican Party
John RussellPresident/Chief Executive Officer
John Russell
President/Chief Executive Officer
President/Chief Executive Officer
Democratic Party
Democratic Party
$3,500Democratic Party
Catherine ReynoldsSenior Vice President
Catherine Reynolds
Senior Vice President
Senior Vice President
Republican Party
Republican Party
$3,250Republican Party
David MengebierExecutive
David Mengebier
Republican Party
Republican Party
$3,000Republican Party
Kenneth Whipple JrChairperson
Kenneth Whipple Jr
Democratic Party
Democratic Party
$3,000Democratic Party
David JoosExecutive
David Joos
Republican Party
Republican Party
$3,000Republican Party
Glenn BarbaVice President
Glenn Barba
Vice President
Vice President
Democratic Party
Democratic Party
$2,500Democratic Party
Show More

CMS Energy Financial Performance

Performance Score
We calculated the performance score of companies by measuring multiple factors, including revenue, longevity, and stock market performance.


> $1B

Founded in


Organization type


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CMS Energy Competitors

Average Salarydesc
Salary Range83k - 133k$106k$105,555
The United Illuminating Company
Salary Range67k - 104k$84k$83,667
Sempra Energy
Salary Range63k - 102k$81k$80,853
Edison Mission Group
Salary Range63k - 100k$80k$79,725
NRG Energy
Salary Range58k - 101k$77k$76,877
Bonneville Power Administration
Salary Range62k - 94k$77k$76,790
Salary Range57k - 97k$75k$75,224
Salary Range58k - 97k$75k$75,106
Ge Capital Montgomery Ward
Salary Range52k - 105k$75k$74,685
Edison International
Salary Range57k - 95k$74k$74,065

Frequently Asked Questions about CMS Energy

When was CMS Energy founded?

CMS Energy was founded in 1886.

How many Employees does CMS Energy have?

CMS Energy has 7,887 employees.

How much money does CMS Energy make?

CMS Energy generates $6.5B in revenue.

What industry is CMS Energy in?

CMS Energy is in the electric utility industry.

What type of company is CMS Energy?

CMS Energy is a public company.

Who are CMS Energy's competitors?

CMS Energy competitors include Sempra Energy, PSEG, Edison International, Entergy, CenterPoint Energy, American Electric Power, Duke Energy, FirstEnergy, Calpine, NextEra Energy, Southern Company, NRG Energy, Bonneville Power Administration, Edison Mission Group, The United Illuminating Company, NiSource, New England Electric Transmission, Ge Capital Montgomery Ward, Mastercard, Arizona Public Service.

Who works at CMS Energy?

Rejji Hayes (Chief Financial Officer)

Patti Poppe (President and CEO)

Where is CMS Energy's headquarters?

CMS Energy's headquarters is in Jackson, MI.

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Updated December 31, 2020

Zippia gives an in-depth look into the details of CMS Energy, including salaries, political affiliations, employee data, and more, in order to inform job seekers about CMS Energy. The employee data is based on information from people who have self-reported their past or current employments at CMS Energy. While we have made attempts to ensure that the information displayed are correct, Zippia is not responsible for any errors or omissions, or for the results obtained from the use of this information. The data presented on this page does not represent the view of CMS Energy and its employees or that of Zippia.

CMS Energy may also be known as or be related to CMS ENERGY CORP, CMS Energy, CMS Energy Corp., CMS Energy Corporation and CMS Energy: Investor Relations.