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Sandman Structural Engineers (SSE) has announced that it acquired Mattson Macdonald Young (MMY), a structural engineering firm located in Minneapolis, Minnesota. This acquisition represents a key step in SSE’s strategic growth, adding to its established offices across Minnesota.
Stephanie Young, MMY President, said, “After 38 years of personal commitment to Mattson Macdonald Young, I’m incredibly proud to share that we’re beginning a new chapter with Sandman Structural Engineers. MMY has been a defining part of my life, and its success is entirely the result of the extraordinary employees who poured their talent, passion, and heart into our work—and the loyal customers who trusted us year after year. This partnership is a way to honor everything we’ve built together—while opening the door to even greater opportunities ahead. I couldn’t be more thankful—or more confident about what’s next.”
“Mattson Macdonald Young is exactly the kind of partner we want on our growth journey, bringing a strong brand delivering excellent quality and customer service, trustworthy people, and a track record of high-quality clients. I’m pleased to welcome Stephanie Young, Ken Green, Matt Hogen, and David Hedberg, along with their entire MMY team, to SSE,” said Kurt Sandman, President of SSE.
Other MMY co-owners Ken Green, David Hedberg, and Matt Hogen shared their excitement for the acquisition.
“Joining SSE is an exciting and meaningful step for the MMY team. At the heart of this partnership is a shared culture and set of values. Together, we’ll continue supporting the clients who trust us while creating new opportunities for our people to grow, collaborate, and do great work. This is about people first—bringing together teams who respect one another, care deeply about their work, and genuinely enjoy collaborating. Joining SSE gives our team more opportunities to learn, grow, and continue doing the work we’re proud of, alongside people who share our values,” said Ken Green.
In addition, David Hedberg shared, "Joining SSE is a rare opportunity to better serve our team and our clients. The culture and resources they have developed foster growth, not only as professionals, but as people. Our future is brighter together, and I know we can continue to provide the safe, practical, and meaningful designs that MMY has built its reputation on for 43 years."
“Joining the SSE team means the ability to bring the unique MMY experiences and capabilities to the markets SSE serves. All of us at MMY pride ourselves on not saying “no” to a project and that has allowed everyone exposure to a wide range of projects and client types. We are excited to move on to this new chapter in our professional careers,” added Matt Hogen.
SSE has built its success on strong, enduring relationships and an unwavering commitment to excellence. Our focus on exceptional customer service and high-quality deliverables is reinforced by a culture rooted in integrity, accountability, and hard work. Together, we are poised to expand our reach and provide even greater resources and opportunities to clients nationwide.
SSE is headquartered in Moorhead with additional offices in Minneapolis and Brainerd. To contact us, please call (218) 227.0022 or visit our website at www.sandmanse.com.
Founded in 1983, Mattson Macdonald Young served the Midwest region providing structural engineering services in all sectors of construction. MMY has established itself as a professional team providing structural engineering services in the Multi-Family Housing, Commercial, Industrial, and Historic Preservation and Restoration spaces. They share a similar culture of client centric focus, integrity, and willingness to serve others.
With over 80 professionals on staff, Sandman Structural Engineers serves clients in all 50 states and Canada within our three practice areas of Commercial, Hospitality & Housing, and Industrial Services. SSE was established in 2005 and later converted to 100% employee-owned in 2024.
Visit our FAQ page to learn more about the transition, your projects, and what to expect next.
