FirstEnergy Corp - Company Profile
Powered by 
All the sales intelligence you need on FirstEnergy Corp in one solution.
- Save hours of research time with a comprehensive
Sales Intelligence Solution.
- Understand how FirstEnergy Corp fits into your total
addressable market and Ideal Customer Profile.
- Gain competitive edge with triggers that tell you
when and how to engage with FirstEnergy Corp.
Get in touch about GlobalData Company reports
Contact the team or request a demo to find out how our data can drive your business forward
The following section provides information on FirstEnergy Corp’s senior management, executives, CEO and key decision makers and their roles in the organization. For more insight into FirstEnergy Corp's management and employees, unlock the full data with our company analytics monitoring tool.
Executives
Brian X. Tierney
Chairman; Chief Executive Officer; President Executive BoardMr. Brian X. Tierney has been the Chairman, Chief Executive Officer and President of the company since 2024. Prior to this, he was the President and Chief Executive Officer of the company from 2023 to 2024. He also served as the Senior Managing Director of Blackstone Infrastructure Partners from 2021 to 2023. Before this, he worked as the Executive Vice President of Strategy at AEP. Mr. Tierney was also the Executive Vice President and Chief Financial Officer of AEP.
K. Jon Taylor
Senior Vice President; Chief Financial Officer Senior ManagementMr. K. Jon Taylor is the Chief Financial Officer and Senior Vice President of the company. Prior to this, he was the Chief Strategy Officer, Chief Financial Officer, and Senior Vice President of the company. he also served as the Vice president of Utility Operations at the company. Mr. Taylor was also the President of Ohio Operations at the company from 2018 to 2019. He was also the Vice president, Controller, and Chief Accounting Officer of the company from 2013 to 2018. Before this, he was also the Vice President and Assistant Controller for the company from 2012 to 2013.
Toby L. Thomas
Chief Operating Officer Senior ManagementMr. Toby L. Thomas has been the Chief Operating Officer of the company since 2023. Prior to this, he served as a Senior Vice President of AEP Energy Delivery at American Electric Power. Mr. Thomas also served as the President and Chief Operating Officer of Indiana Michigan Power.
Daniel Puscas
Chief Information Officer Senior ManagementMr. Daniel Puscas has been the Chief Information Officer of the company since 2026. Previously, he served as a Partner at Fortium Partners. He was a Director at AlixPartners. He also held senior leadership roles at Comerica.
Hyun Park
Senior Vice President; Chief Legal Officer Senior ManagementMr. Hyun Park has been the Chief Legal Officer and Senior Vice President of the company since 2021. Prior to this, he served as the Partner and General Counsel of LimNexus LLP. Mr. Park was also the Counsel of Latham & Watkins LLP. He served as the Senior Vice President and General Counsel for PG&E Corporation from 2006 to 2017. Before this, he was also the Vice President, General Counsel and Secretary of Allegheny Energy. Mr. Park served as the Senior Vice President, General Counsel and Secretary of Sithe Energies.
Still looking?
Have you found what you were looking for? From start-ups to market leaders, uncover what they do and how they do it.
Explorer
Access more premium companies when you subscribe to Explorer