07/25/2026
Meet Tomasz & Marta Kostka 👋
At Great Stone Inc., we're proud to be more than a business—we're a family. Today, we're excited to introduce two people who help keep our company running every single day: Tomasz and Marta Kostka.
As Roman and Marzena's son-in-law and daughter, Tomasz and Marta have been part of the Great Stone family from the very beginning. Together, they represent the next generation helping carry forward the values our company was built on.
Tomasz began working alongside Roman in 2013, helping lay the foundation for what would become Great Stone Inc. When the company officially opened its doors in 2014 in Schaumburg, he was there every step of the way. Today, as our Installation Manager, he leads our installation team with professionalism, precision, and pride, ensuring every countertop is installed to the highest standard.
Behind the scenes, Marta helps keep the business organized and running smoothly. Her professionalism, dedication, and attention to detail support the day-to-day operations that allow our entire team to focus on delivering exceptional craftsmanship and outstanding customer service.
Together, Tomasz and Marta share the same commitment to quality, honesty, and family values that have defined Great Stone Inc. since day one. Whether working with customers, supporting the team, or ensuring every project stays on track, they play an important role in everything we do.
We're incredibly grateful to have them as part of both our family and our team.
✨ Family • Dedication • Precision • Teamwork
