Location

Michigan

Grand Rapids, MI

Corporate Office

126 Ottawa Ave NW Ste 600
Grand Rapids, MI 49503

Caledonia, MI

Operations Center

6645 East Paris Ave SE
Caledonia, MI 49316

Kalamazoo, MI

2700 Stadium Dr Ste 2
Kalamazoo, MI 49008

Traverse City, MI

880 Munson Ave Ste F
Traverse City, MI 49686
Connect With Us

Building in Michigan since 1891

70
Shareholders
100%
Employee-owned
S-Corp

Michigan Leadership Team

MI
CO
FL

Frank

Stanek

CEO & President of O-A-K Michigan

The eighth CEO in our employee-owned company's 134-year history, Frank Stanek earned his Bachelor of Science Degree in Civil Engineering from Michigan State University and joined the O‑A‑K team in 1996. He has been in his current role since January 1, 2013. He is a licensed Professional Engineer in the State of Michigan, a licensed General Contractor and a LEED Accredited Professional.

Meet Frank
MI
CO
FL

Todd

Steffen

Chief Financial Officer

Previously from Illinois, Todd brings over 30 years of accounting construction experience to O‑A‑K. He holds his bachelor’s degree in accounting and his master’s in business administration from Illinois State University. He is a Certified Public Accountant and a Certified Management Accountant. Todd is also a member of the Institute of Management Accountants and the Construction Financial Management Association.

Meet Todd
MI
CO
FL

Jeremy

Amshey

Chief Operating Officer

Jeremy Amshey is a dedicated leader in the construction industry, currently serving as the Chief Operating Officer (COO) for O-A-K. Born and raised in Rockford, Michigan, he maintains strong ties to his roots, where he continues to live today with his wife and three children.

Jeremy's professional journey began at Ferris State University, where he earned his degree in Construction Management. This foundation in the field led him to join the O-A-K team in 2008. His talent and commitment saw him rise through the ranks, eventually taking on the crucial role of COO. As COO, Jeremy is instrumental to the company, serving as the vital link between O-A-K's core culture and its clients. He ensures that the firm's values and commitment to excellence are reflected in every project and relationship.

Beyond his work at O-A-K, Jeremy is passionate about giving back to the community and supporting education. He currently serves on the Ferris State University Foundation Board, helping to shape the future of his alma mater and support its mission. Additionally, he previously dedicated his time and expertise as a trustee for the Rockford Education Foundation, advocating for educational opportunities within his local community. In his personal time, Jeremy previously coached several youth sports teams as his children were growing up—a testament to his dedication as a parent and his belief in community mentorship.

Jeremy Amshey's story is defined by a commitment to his family, his company, and the institutions that shaped his career and community.

Meet Jeremy
MI
CO
FL

Josh

Szymanski

Chief Strategy Officer

With two decades of experience in the commercial construction industry, Josh is a seasoned professional responsible for driving business development and strategic initiatives that support O-A-K’s client expectations and corporate growth. His role effectively bridges the gap between project concept and construction operations, commercial construction industry, Josh specializes in process management and institutional projects. He holds a Bachelor of Science degree in Civil Engineering from Michigan Technological University and a Master's in Civil Engineering from Purdue University. He is a licensed and registered Professional Engineer in the State of Michigan and a LEED Accredited Professional.

Meet Josh
MI
CO
FL

Adam

Tweedy

Director of Preconstruction

Adam’s been with Owen-Ames-Kimball since 2012 and has lead our preconstruction department in Michigan since 2018. He specializes conceptual budgeting, urban redevelopments, expedited scheduling, and commercial projects - both industrial and office.

Meet Adam
MI
CO
FL

Tom

Stanek

Director of Kalamazoo Operations

Tom was raised in Southwest Michigan in the town of Decatur and now lives in Paw Paw, not far from where he grew up. He has completed a wide range of projects throughout the Midwest, including K–12, higher education, industrial, manufacturing, healthcare, food service, and retail facilities. He holds a B.S. in Construction Science Management with a minor in Business Management from Western Michigan University.

Meet Tom
MI
CO
FL

Rachael

Martemucci

Director of Education Market Development

Rachael joined O-A-K in 2010 and now serves as Director of Education Market Development, following more than a decade as Director of Marketing. In this role, she focuses on strengthening client services, developing talent, and unifying teams across several departments. She has partnered with more than 20 local school districts and brings deep expertise in pre-bond planning and strategic engagement.

Meet Rachael
MI
CO
FL

Cade

Dammen

Director of Field Operations

Cade began his career as an intern at O‑A‑K for two consecutive summers. After he completed his construction management degree from Ferris State University, he was hired as a full-time Project Superintendent. Today, as the Director of Field Operations, Cade provides leadership to Project Superintendents and serves as a mentor to employees.

Meet Cade
MI
CO
FL

Kim

Burchardt

Michigan Controller

Kim Burchardt joined O-A-K in 2012 as a member of the accounting department. She holds a double Bachelor’s Degree in Accounting and Finance from Davenport University and brings more than 31 years of construction industry experience.

Meet Kim

Michigan Stories

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Tour Prein&Newhof's Water Testing Laboratory

Take a look inside Prein&Newhof’s new water testing lab, a space designed to support advanced testing and continued innovation.
Learn More

Rachael Martemucci named Director of Education Market Development

Owen‑Ames‑Kimball (O‑A‑K) is pleased to announce the appointment of Rachael Martemucci as Director of Education Market Development, a newly established leadership role reflecting the construction management company’s continued commitment to the K12 education sector
Learn More

KDL Walker Construction Update

The new Kent District Library in Walker is designed to bring people together with flexible spaces, including a community room and indoor/outdoor area. Join O‑A‑K Project Superintendent Gabe B
Learn More

Hope College Economics and Business Building Groundbreaking

Hope College recently broke ground on their new Economics and Business Building! The 74,000-square-foot building will create an inspiring hub for learning, innovation, and collaboration right
Learn More

Holland Heights Elementary Construction Update

Progress is underway at Holland Heights Elementary! This project combines renovation and new construction, adding classrooms, a new media center, nature-based learning areas, wider hallways,
Learn More

Kalamazoo College Electrical Update

A stronger, safer, and more reliable electrical system now powers Kalamazoo College. This campus-wide upgrade ensures uninterrupted learning, research, and collaboration for students and facu
Learn More

Open Positions

Want to join a people-first company that values employee growth, teamwork, safety, and strong project leadership? View our open positions below and apply today!

Administrative Coordinator

Grand Rapids, MI Corporate Office
Apply

Construction Project Superintendent

Kalamazoo, MI
Apply

Construction Marketing Brand Strategist

Grand Rapids, MI Corporate Office
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Construction Project Assistant Manager (Traverse City)

Traverse City, MI
Apply

Construction Project Superintendent- Northern Michigan

Traverse City, MI
Apply

Construction Project Superintendent (Lansing)

Kalamazoo, MI
Apply

Construction Project Manager

Grand Rapids, MI Corporate Office
Apply

Construction Project Accounting Manager

Grand Rapids, MI Corporate Office
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Marketing Specialist Intern

Grand Rapids, MI Corporate Office
Apply

Construction Project Superintendent

Grand Rapids, MI Corporate Office
Apply

Partners for a Stronger Future

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Connect With O-A-K

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