Construction Services Group
12451 Highway 59 Neosho, MO 64850
1003 Beau Terre Drive Bentonville, AR 72712

Our History

Why Family makes a difference in our work
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Construction Services Group

Making Your Vision a Reality Since 1941

1941
The Beginning of a Construction Legacy

The Marion family’s involvement in construction begins in 1941 when A.C. Marion works as a carpenter on the Camp Crowder project in Neosho, Missouri—one of the region’s most significant wartime construction efforts. This early exposure to large-scale, mission-critical construction established a foundation built on discipline, craftsmanship, and accountability.

1940s–1960s
Establishing Technical Depth

Following Camp Crowder, A.C. Marion continues building across residential and commercial projects, earning a reputation for integrity and quality execution. In 1962, Dale Marion formalizes these efforts by establishing Dale Marion Construction, expanding services across residential, agricultural, and light commercial construction throughout the Midwest.

1970s
Structured Growth and Diversification

The formation of M&M Construction Company in 1973 marks a strategic expansion into speculative construction, custom building, and mechanical services. This period strengthens operational capabilities across plumbing, HVAC, and electrical systems—experience that continues to inform CSG’s integrated project delivery approach.

1980s–Early 2000s
Commercial Leadership & Scale

During this period, the Marion leadership plays a key role in the growth of a regional commercial contractor, establishing and managing a full mechanical division while delivering increasingly complex commercial projects. Chris Marion advances into executive leadership, driving improvements in project management, estimating, safety, purchasing, and human resources, while helping expand design-build and construction management delivery models.

2005
Formation of Construction Services Group

The Marion Company, LLC is established, launching Construction Services Group (CSG) with a clear strategic focus: delivering design-build and construction management services through a client-centric, performance-driven model. The firm is built on decades of commercial construction experience and a commitment to accountability and long-term partnerships.

2008
CSG Becomes Operational

Following completion of contractual obligations, CSG begins executing projects, quickly establishing itself as a trusted regional partner for negotiated and repeat commercial work.

2012
Investment in Infrastructure & Growth

CSG moves into its corporate headquarters, supporting operational expansion, enhanced project delivery capabilities, and sustained growth.

2025
Regional Expansion into Northwest Arkansas

CSG opens an Arkansas office in Bentonville, strategically positioning the firm to support the rapidly growing commercial, industrial, and development markets in Northwest Arkansas. This expansion reflects CSG’s commitment to regional clients and its ability to scale alongside their needs.

Today
Over 85 Years of Experience / Over 21 Years as CSG

With construction experience spanning more than eight decades and now entering its 21st year as Construction Services Group, CSG delivers proven leadership, financial stability, and consistent results across commercial, industrial, and design-build projects.