Ameren's Executive Leadership 
 

Thomas R. Voss 

Ameren Corporation
Chairman of the Board
and Chief Executive Officer

 
Thomas R. Voss was elected to the position of chairman of the board of directors of Ameren Corporation on April 27, 2010. He was elected president and chief executive officer of Ameren in May 2009 - titles he retained with his promotion to the position of board chairman. (more)

  

Warner L. Baxter

President
Ameren Corporation
 
Warner Baxter is president of Ameren Corporation and will become its chief executive officer on April 24, 2014. From 2009 to early 2014, he served as president and CEO of Ameren Missouri, the largest energy provider in Missouri, serving more than 1.2 million electric and gas customers with revenues in excess of $3 billion. (more)
  
Richard J. Mark
Ameren Illinois Chairman, President and
Chief Executive Officer
 
Richard J. Mark is chairman, president and CEO of Ameren Illinois Company. In this position, he is responsible for the natural gas and electric delivery business, customer service, gas support and community affairs for Ameren Illinois. (more)

 

Michael L. Moehn

Ameren Missouri Chairman, President and
Chief Executive Officer

Michael Moehn was elected chairman, president and chief executive officer of Ameren Missouri on April 1, 2014, and is responsible for Missouri's largest energy provider in serving more than 1.2 million electric and gas customers across central and eastern Missouri, including the greater St. Louis area. (more)

 

 

Daniel F. Cole

Ameren Services Chairman, President and
Chief Executive Officer
 
Daniel F. Cole on May 1, 2009, became chairman, president and chief executive officer of Ameren Services, an Ameren subsidiary providing administrative and technical support services to Ameren and its operating companies, subsidiaries and affiliates. (more)

  

Maureen A. Borkowski

Chairman, President and Chief Executive Officer
Ameren Transmission Company
Ameren Transmission Company of Illinois
  
Maureen A. Borkowski is chairman, president and chief executive officer of Ameren Transmission Company (ATX) - a subsidiary dedicated to electric transmission infrastructure investment. In addition to leading the development of new transmission, she is also responsible (more)

  

 

Mary P. Heger

Ameren Services Vice President and Chief Information Officer, Information Technology and Ameren Services Center
  
Mary P. Heger is vice president and chief information officer (CIO) of Information Technology and the Ameren Service Center for Ameren Services, a subsidiary of Ameren Corporation. She directs the staff responsible for all IT application development, infrastructure, networks, payroll, bill processing and accounts payable. (more)
   
 

Mark C. Lindgren

Ameren Services Vice President and
Chief Human Resources Officer
  
Mark C. Lindgren is vice president of Human Resources for Ameren where he directs the staff responsible for all Human Resources, including benefits, compensation, employee relations, hiring, leadership and organizational development. (more)
 
     

Martin J. Lyons

Ameren Executive Vice President and
Chief Financial Officer
 
Martin J. Lyons is executive vice president and chief financial officer for Ameren Corporation. In his current position, Lyons is responsible for corporate planning, risk management, financial accounting and reporting, tax planning and compliance, treasury and investor relations functions. (more)

  

Charles D. Naslund

Ameren Services Executive Vice President
Corporate Oversight
   
Charles D. Naslund is executive vice president, Corporate Oversight - a position he assumed on March 1, 2013. He also serves as executive vice president, Generation and Environmental Projects for Ameren Missouri. (more)


  

Gregory L. Nelson

Ameren Senior Vice President
General Counsel and Secretary
  
Gregory L. Nelson is senior vice president, general counsel and secretary of Ameren, where he is responsible for the legal, federal legislative, security and economic development functions for the corporation. (more)


  

executive leadership, executives, executive leaders, senior management, Ameren senior management
 
 
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