President and Chief Executive Officer Mr. Steffes assumed his role as President & Chief Executive Officer of ACES in September of 2013. As Senior Vice President & Chief Operating Officer at ACES for the previous 14 years, Mr. Steffes has been responsible for all commercial activities of the company. This encompasses managing the company’s areas of …
Category Archives: Bio
David H. Claspell
Senior Vice President and Chief Financial Officer Mr. Claspell leads the Back Office function at ACES. His responsibilities include oversight of all energy market settlement activities for ACES’ Clients, as well as oversight of ACES’ internal accounting activities, legal support, human resources, and general administrative functions. Mr. Claspell has more than 30 years experience in …
Jeffrey L. Walker
Senior Vice President and Chief Risk Officer Mr. Walker leads the Middle Office function at ACES. The Middle Office has a primary focus on tracking and mitigating risk, as well as risk reporting, and risk management training and consulting. Mr. Walker’s responsibilities include oversight of all Trading Control, Credit Services, Contract Administration, Regulatory, and Corporate Development …
Matt Fischesser
Vice President and Chief Information Officer As part of the ACES Senior Management team, Matthew Fischesser is responsible for leading the IT organization at ACES. Prior to becoming CIO, Mr. Fischesser held a variety of positions over his tenure at ACES, in both Process Control and IT. Prior to joining the ACES team, Mr. Fischesser was …
Leah Smith
Vice President of External Affairs Leah Smith is Vice President of External Affairs at ACES in Carmel, Indiana. Leah joined ACES in March 2000 as an Administrative Assistant supporting the marketing team. From 2005 to 2010, Leah worked in ACES’ Accounting department as a Staff Accountant, during which time she gained a lot of valuable …
Joanna Lehner
Vice President of Finance & Accounting Joanna Lehner is the Vice President of Finance and Accounting for ACES in Carmel, Indiana. Joanna joined ACES in March 2011. As Vice President of Finance and Accounting, Joanna is responsible for the supervision and development of each of the company’s senior and staff accountants and financial analysts. She …
Melissa Fischer
Vice President of Risk Management Services Melissa Fischer is Vice President of Risk Management Services at ACES in Carmel, Indiana. Melissa joined ACES in November 1998. In her current role, Melissa oversees various risk management services provided to ACES’ Members and Customers, including: Trading Control Services, which include verifying transactions are captured in ACES’ risk …
Mindy Kidwell
Executive Director of Trading Control Mindy Kidwell is the Executive Director of Trading Control at ACES in Carmel, Indiana. Mindy joined ACES in January 2003 as an Associate in ACES’ Associates Program, and shortly after accepted a position as a Trading Control Analyst. In April 2006, Mindy was promoted to Manager of Trading Control. In …
Courtney Stooksbury Parker
Associate General Counsel, Managing Director of Legal Services Courtney Stooksbury Parker is Associate General Counsel, Managing Director of Legal Services for ACES. As a lawyer for the company, Courtney provides advice to the company on matters of energy policy, energy transactions, business law, labor and employment, contracts, and energy regulation. Prior to her role in …
Paula Rabb
Vice President of Human Resources Paula Rabb is the Director of Human Resources for ACES in Carmel, Indiana. Paula joined ACES in October 2015. As Director of Human Resources, Paula is responsible for the supervision and development of the company’s human resources team, as well as designing, planning, and implementing human resources programs (e.g., recruitment, …