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Committed to Excellence

Since 1987, we have built our construction company on the strength of a versatile and innovative team with focus on exceptional results for our clients. At Greystone, every member of our team is a leader. From our craft professionals to our executives, all team members are empowered to act with purpose and integrity while striving for success in everything we do.

Greystone Leadership Team

Greystone Construction Leadership Team

  • Kevin O’Brien


    In 1987, Kevin founded Greystone. His guidance and focus on high-quality craftsmanship, safety, and customer service has grown Greystone from a start-up to a well-established and versatile general contractor.

    Kevin has an MBA in Finance from the University of Minnesota and a BS in Construction Management from the University of Wisconsin, Stout.

  • Gordie Schmitz


    Gordie joined Greystone in 1993 and has since established an exceptional team of project managers and estimators. Gordie’s areas of expertise span the entire construction process and Greystone’s delivery methods.

    Gordie has a BS in Construction Management from Minnesota State University, Mankato.

  • Eric Bender

    V.P. of Construction Operations

    In 1995, Eric joined Greystone beginning as a tradesman working on commercial and industrial projects. Eric’s knowledge of field operations and his management style has made him a respected leader at Greystone.

    Eric has a BS in Construction Management from Minnesota State University, Mankato.

  • Gary Grahek


    Gary has vast financial knowledge and experience in the construction industry. He is responsible for forecasting, financial reporting, auditing, and management of risk.

    Gary has a BS in Accounting from St. Cloud State University.

  • Brian Kreuser

    V.P. of Construction Execution

    Brian joined the Greystone team in 1999 through an apprenticeship program at the Shakopee High school. With 20+ years in the construction industry, he is highly knowledgeable with hands-on experience. He is responsible for field labor scheduling, overseeing all in-house labor operations, training crews, equipment management and more.

  • Colin O’Brien

    V.P. of Business Development

    Colin grew up touring job sites with his father, Kevin, at a very young age. Colin’s construction experience officially began at Greystone as a field laborer in 2002. His field experience benefited him later as an estimator, project coordinator, and now business development manager. His focus includes agribusiness, commercial, and industrial markets.

    Colin has a BS in Construction Management from Minnesota State University, Mankato.

Join Our Team

We are always searching for more great people. Give us a shout if you want to join a growing company that offers rewarding work, great benefits, competitive pay, and opportunities to advance.