Mark Witkowski

Chief Financial Officer
Core & Main

Mark Witkowski is chief financial officer for Core & Main, a leading specialized distributor with a focus on water, wastewater, storm drainage and fire protection products, and related services. As a member of the executive team, Witkowski provides strategic direction for the company's overall financial condition and performance. Since assuming the role in February 2016, he has played 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 leader in advancing reliable infrastructure™ with local service, nationwide®. As a leading specialized distributor with a focus on water, wastewater, storm drainage and fire protection products, and related services, Core & Main provides solutions to municipalities, private water companies and professional contractors across municipal, non-residential and residential end markets, nationwide. With approximately 320 locations across the U.S., the company provides its customers local expertise backed by a national supply chain. Core & Main’s 4,500 associates are committed to helping their communities thrive with safe and reliable infrastructure. Visit to learn more.


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