MARTHA Z. CARNES

Corporate Board Profile

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MATRIX SERVICE CO

Filing Date Source Excerpt
2017-09-15 Ms. Carnes received her B.B.A. in accounting from the University of Texas at Austin and she is a certified public accountant.
2018-09-21 Ms. Carnes retired from PricewaterhouseCoopers LLP ("PwC") in June 2016, where she had a thirty-four year career with the firm. She was an assurance partner serving large, publicly traded companies in the energy industry. Ms. Carnes held a number of leadership positions with PwC including the Houston office Managing Partner. She also served as PwC's Energy and Mining leader in the United States where she led the firm's energy and mining assurance, tax, and advisory practices.
2019-09-26 Ms. Carnes retired from PricewaterhouseCoopers LLP ("PwC") in June 2016, where she had a thirty-four year career with the firm. She was an assurance partner serving large, publicly traded companies in the energy industry. ... Ms. Carnes received her B.B.A. in accounting from the University of Texas at Austin and is a certified public accountant.
2020-09-24 Ms. Carnes received her B.B.A. in accounting from the University of Texas at Austin and is a certified public accountant.
2021-09-23 Ms. Carnes retired from PricewaterhouseCoopers LLP ("PwC") in June 2016, where she had a thirty-four year career with the firm. She was an assurance partner serving large, publicly traded companies in the energy industry. Ms. Carnes held a number of leadership positions with PwC including the Houston office Managing Partner. She also served as PwC's Energy and Mining leader in the United States where she led the firm's energy and mining assurance, tax, and advisory practices. Ms. Carnes also served as one of PwC's Risk Management Partners and was PwC's United States representative on the firm's Global Communities Board. She also serves on the Supervisory Board and is the Lead Independent Director and Chair of the Audit Committee of Core Laboratories N.V., a Netherlands company that provides reservoir description and production enhancement services to the oil and gas industry. In addition, she is a member of the Board of Directors and Chair of the Audit Committee of SunCoke Energy, Inc., whose principal businesses are cokemaking and logistics. Ms. Carnes is also a Member Representative of Ohio Valley Midstream LLC, a member managed limited liability corporation, and she is a member of the Board of Trustees at Texas Children's Hospital and the Board of the Barbara Bush Houston Literacy Foundation. From September 2017 to June 2019, she was a member of the Board of Directors and served on both the audit and conflicts committees of SunCoke Energy Partners GP LLC, the general partner of SunCoke Energy Partners LP. Ms. Carnes received her B.B.A. in accounting from the University of Texas at Austin and is a certified public accountant.
2022-10-24 Ms. Carnes received her B.B.A. in accounting from the University of Texas at Austin and is a certified public accountant.
2023-10-05 Ms. Carnes received her B.B.A. in accounting from the University of Texas at Austin and is a certified public accountant.
2024-09-25 Ms. Carnes received her B.B.A. in accounting from the University of Texas at Austin and is a certified public accountant.

Data sourced from SEC filings. Last updated: 2025-08-30