10 Ameren finance leaders
Leonard P. Singh, EVP and Chief Financial Officer and Chairman and President of Ameren Services at Ameren, is the most senior current person among these ten Ameren finance leaders, who also hold controller, treasury and accounting roles. A reader can learn how finance leaders work at Ameren from people who have held the role.
Professionals to explore
Alex Koenen, CPA
LinkedInExperience: Senior Director, Corporate and Regulatory Accounting · Ameren
Alex Koenen has been Senior Director, Corporate and Regulatory Accounting at Ameren since August 2025 and was Director, Accounting there from 2023 to 2025. Alex Koenen was Director, Controllers Special Projects at Ameren from 2022 to 2023 and Director, National Office at PwC from 2020 to 2022.
Brenda Weber
LinkedInExperience: Assistant Treasurer and Director, Corporate Finance · Ameren
Brenda Weber has been Assistant Treasurer and Director, Corporate Finance at Ameren, in a role dated from July 1991, based in High Ridge, Missouri. Brenda Weber was also a Finance Professional at Ameren Illinois from 1991 to 2003, and the profile headline gives the title Assistant Treasurer and Director, Corporate Finance at Ameren.
Brian Cropper
LinkedInExperience: Assistant Treasurer and Senior Director, Corporate Finance and Banking · Ameren
Brian Cropper has been Assistant Treasurer and Senior Director, Corporate Finance and Banking at Ameren since August 2025. Brian Cropper was Vice President and Treasurer at Peabody Energy from 2021 to 2025, Director Financial Planning and Analysis there from 2017 to 2021, Assistant Treasurer from 2015 to 2017 and Sr. Manager Corporate Hedging from 2013 to 2015.
David Loesch
LinkedInExperience: Vice President and Controller · Ameren
David Loesch has been Vice President and Controller at Ameren since June 2020 and has also held the role of Director, Ameren Services Center there since 2017. David Loesch was Director Of External Reporting at Ameren from 2013 to 2017, External Reporting Manager there from 2009 to 2012 and General Accounting Supervisor from 2003 to 2008.
Julia Ballard
LinkedInExperience: Director, Regulatory Accounting · Ameren
Julia Ballard has been Director, Regulatory Accounting at Ameren since December 2025 and was Senior Manager, Regulatory Accounting there in 2025. Julia Ballard was Manager, Regulatory Accounting at Ameren from 2024 to 2025, Lead Financial Specialist there from 2022 to 2024 and Senior Financial Specialist from 2016 to 2022.
Leonard P. Singh
LinkedInExperience: EVP and Chief Financial Officer and Chairman and President of Ameren Services · Ameren
Leonard P. Singh has been EVP and Chief Financial Officer and Chairman and President of Ameren Services at Ameren since January 2026 and was Chairman and President - Ameren Illinois there from 2022 to 2025. Leonard P. Singh was a Senior Vice President at Con Edison from 2020 to 2022, Vice President - Manhattan Electric Operations there from 2015 to 2020 and Chief Engineer - Gas Operations from 2013 to 2015.
Marci Althoff
LinkedInExperience: Director, Finance Transformation · Ameren
Marci Althoff has been Director, Finance Transformation at Ameren since September 2026 and has held the role of Director, Accounting & Internal Controls there since 2020. Marci Althoff was Manager, Finance Transformation at Ameren from 2019 to 2020, Manager, Power & Fuels Accounting and Internal Controls there from 2015 to 2018 and Supervisor, Fuel & Gas Accounting from 2012 to 2015.
Mitch Lansford, CPA
LinkedInExperience: Vice President and Treasurer · Ameren
Mitch Lansford has been Vice President and Treasurer at Ameren since August 2025 and was Senior Director, Financial Reporting and Regulatory Accounting there from 2023 to 2025. Mitch Lansford was Director, Regulatory Accounting at Ameren from 2020 to 2024, Senior Manager, Regulatory Accounting there from 2019 to 2020 and Manager, Accounting Research and Policy from 2017 to 2019.
Robin Kies
LinkedInExperience: Vice President, Financial Services and Continuous Improvement · Ameren
Robin Kies was Vice President, Financial Services and Continuous Improvement at Ameren from July 2023 to June 2025 and Vice President, Financial Services and Performance Management there from 2020 to 2023, and has been Vice President Finance at Dot Foods since June 2025. Robin Kies was Senior Director Asset, Performance and Portfolio Management at Ameren from 2018 to 2020.
Ryan Martin
LinkedInExperience: Senior Vice President, Corporate Strategy, Risk & Investor Relations · Ameren
Ryan Martin has been Senior Vice President, Corporate Strategy, Risk & Investor Relations at Ameren since August 2024, and the profile headline gives the title Senior Vice President, Finance. Ryan Martin was Vice President & Chief Audit Executive at Ameren from 2018 to 2023, Vice President & Treasurer there from 2013 to 2018 and Assistant Treasurer from 2010 to 2013.
Choose the right perspective
Pick the person whose finance remit is closest to your question, since treasury and corporate finance, regulatory accounting, controllership and finance transformation involve different decisions. Check the dates on each role to see how recent the experience is.
Questions to take into the conversation
- 01What did you look at first when you took on your current finance role, and what did you learn from it?
- 02How do you plan financing and reporting for capital spending that runs over several years?
- 03What has your own work taught you about accounting and reporting in a regulated business?
Reaching Ameren finance leaders
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About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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