Our Team
Bringing a Better Experience Everyday
Mark Dudzinski, President
Mark Dudzinski has over 29 years construction experience. Mark joined Northcentral in 1999 as a Site Superintendent and has been promoted into numerous management positions and ultimately, President. As President of Northcentral Construction, Mark is responsible for bringing a better construction experience to each client, business partner, and employee. He is dedicated to making Northcentral a great place to work and a company that owners choose with confidence.
Raquel Schraufnagel, Chief Financial Officer
Raquel Schraufnagel brings 25 years of construction accounting experience to Northcentral Construction, overseeing all aspects of financials including management of budgets, preparation and analysis of financial statements, financial forecasting and reporting to Northcentral’s board. Her vast experience in construction accounting has established her as a credible voice in decision making and leadership at Northcentral.
Ralph J. Grebe, Senior Project Manager
Ralph Grebe is a Senior Project Manager with over 35 years of residential and multifamily construction experience. He worked as a Site Manager on many projects before becoming a Project Manager 17 years ago. In the past decade, Ralph has project managed over 50 projects encompassing over 3200 units. His knowledge of energy efficiency creates success for Northcentral to meet or exceed all green build standards.
Building a Shared Vision
In the late 1980s, two young construction professionals—Jeff Donovan and Jeff Kowalik—met while working together on a variety of commercial construction projects. They shared a vision of building a general contracting company that would encompass time honored construction practices and new innovative ideas while providing outstanding customer focus and service.
They created Northcentral Construction in 1990, laying the foundation of what is now a thriving, growing construction firm. Through their hard work, dedication and focus they built a solid, financially stable company that provides a better construction experience to the developers, subcontractors and employee team members throughout Wisconsin. They continue to stay active in the company as co-chairmen of the board.