Mark Witkowski

Vice President and Chief Financial Officer
Core & Main

Mark Witkowski is vice president and chief financial officer for Core & Main, a leading distributor of waterworks and fire protection infrastructure products in the U.S. As a member of the executive team, Witkowski provides strategic direction for the overall financial condition and performance of the company. He plays an integral role in supporting Core & Main’s overall growth initiatives and investment.

Witkowski leads the company’s finance and information technology departments. Upon separation from HD Supply in 2017, he was instrumental in establishing the tax, internal audit, external reporting, treasury and risk management functions for Core & Main. He has led numerous system implementations to improve sales growth and operational improvement.

Witkowski has more than 20 years of experience building and leading finance teams with a special focus on branch-based businesses that have both centralized and decentralized operations. He joined Core & Main in 2007 and prior to being named CFO, was vice president of finance. Earlier in his career, Witkowski was a senior manager with PricewaterhouseCoopers, where he served large SEC audit clients in the manufacturing sector as well as large private companies within the distribution and higher education industries.

Witkowski is a board member of Karla Smith Behavioral Health, which supports young adults and families in overcoming mental and behavioral health challenges.

Witkowski holds a bachelor’s degree in business administration with a focus on accounting and finance from Washington University. He is a certified public accountant and a member of the American Institute of Certified Public Accountants.

About Core & Main

Based in St. Louis, Core & Main is a leading distributor of water, sewer, storm drain and fire protection products in the United States. Operating more than 250 branches nationwide, the company combines local expertise with a national supply chain to provide contractors and municipalities innovative solutions for new construction and aging infrastructure. Core & Main’s 3,000 plus associates are committed to the safe distribution of water and fire protection to help communities thrive. Visit to learn more.


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