# Mark Witkowski

> Mark R. Witkowski is CEO and a director of Core & Main, a St. Louis-based infrastructure products distributor serving the United States and Canada. He joined the business in 2007, became CFO of its operating company in February 2016, helped establish its standalone finance functions and lead its 2021 IPO, and became CEO on March 31, 2025.

- **Role:** Chief Executive Officer and Director at Core & Main
- **Organizations:** Core & Main, PricewaterhouseCoopers, American Institute of Certified Public Accountants
- **Education:** B.S. in Business Administration, emphasis in accounting and finance, Washington University in St. Louis
- **Known for:** Helped establish tax, internal audit, external reporting, treasury and risk management functions when the business separated from HD Supply., Helped lead the 2021 IPO and develop capital structure and capital allocation priorities., Appointed CEO and director following a planned succession in March 2025.

## Career timeline

- **Before 2007** — Worked in the audit practice of PricewaterhouseCoopers, including as a senior manager.
- **2007** — Joined the business now known as Core & Main.
- **2008-2012** — Served as credit director; subsequently served as vice president of finance.
- **2016-02** — Became CFO of the operating company.
- **2017** — Helped establish standalone finance functions after separation from HD Supply.
- **2021** — Helped lead Core & Main through its initial public offering.
- **2025-03-31** — Became CEO and joined the board of directors.

## Achievements

- Helped establish tax, internal audit, external reporting, treasury and risk management functions when the business separated from HD Supply.
- Helped lead the 2021 IPO and develop capital structure and capital allocation priorities.
- Appointed CEO and director following a planned succession in March 2025.

## Latest updates

- **2026-09** — Led Core & Main as it reported fiscal 2026 second-quarter net sales of $2.145 billion and net income of $150 million; company reaffirmed its full-year outlook.
- **2026-04** — Remained CEO as Steve LeClair retired from the executive chair and board chair roles and James Castellano became board chair.
- **2026-03** — Fiscal 2025 full-year results reported the company’s sixteenth consecutive year of sales growth.

## Links

- Website: https://coreandmain.com/who-we-are/leadership/mark-witkowski/
- LinkedIn: https://www.linkedin.com/in/mark-w-73830055

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Profile page: https://yespress.io/mark-witkowski
Published by YesPress — https://yespress.io
Last updated: 2026-10-21