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Who We Are…

The SLC3 is the region’s leading all-inclusive construction industry association, uniting owners and providers of services and products that shape the natural and built environment.

We’re the largest Local User’s Council in the United States—led by owner (project owners) members and supported by associate members (providers). Our work is anchored in four key pillars that drive industry impact:

  • Innovation – Advancing project delivery, safety, and technology to elevate performance across design and construction.
  • Education – Our key offering is critical continuing education for engineers, architects, and safety professionals while developing stronger leaders at every level. But, we offer continuing education for all staff! We offer leadership, sales and marketing, and life skills training.
  • Equity Empowerment – Promoting diversity, inclusion, and ultimately equity across the industry by ensuring all voices are heard and valued, and uniting with each other.
  • Collaboration – Fostering a united, inclusive community where every member has a seat at the table—and together, we build a stronger industry and region. And yes, we also host notable networking events! Just ask around!

Our Mission

Building a better future by uniting the greater St. Louis region’s design and construction community in achieving innovation, offering advanced education, equity empowerment, and fostering collaboration among all stakeholders.

Newsletters

Catch up on our newsletters here!  Be sure to sign up for the newsletters too! 

Blogs and Members News

Here’s the latest news! If you are member we include you in our news, weekly!  Sponsorships are available too!  

The Productivity Gap in Construction: Why Tech Adoption Can’t Wait Any Longer

December 1, 2025|Comments Off on The Productivity Gap in Construction: Why Tech Adoption Can’t Wait Any Longer

By Kelly Jackson For years, our industry has been talking about digital transformation—BIM adoption, robotics on jobsites, prefab and modular, AI-enhanced project planning, data-driven safety programs, etc. Yet despite the buzz, construction continues to lag [...]

Building a Culture Around Service

December 1, 2025|Comments Off on Building a Culture Around Service

Strengthening Safety Through Care, Stewardship, and Support by Chuck Twellmann  In a leadership meeting earlier this year, our company president introduced Quint Studer’s Nine Principles for Organizational Excellence and invited leaders across the organization to [...]

SLC3 Membership

The membership of the SLC3 includes some of the largest construction consumers in the greater St. Louis region. Because of the size and volume of their construction activities, the Council is recognized as the voice of “Owners” in the region. Thus, our voice and impact on construction industry practices is strong and influential. However, we are a community of all stakeholders! We welcome anyone doing business in the natural and built environment.  We are truly the ONLY association offering membership bringing together the AEC community in Greater St. Louis and a seat at the table with decision makers! We have multiple levels of membership available – including one that fits your needs!

Owner Sustaining (Current: Ameren and Bayer)
Owner Corporate (ex. Mercy, Mallinckrodt, Avison Young/Pace Properties, BJC Healthcare, Bunge, Maryville University, ICL Specialty Products, Northstar Mgt., Kwame Building Group, Anna Leavey Consulting, Four Fourteen)
Owner Public (City of St. Louis, St. Louis County, Hazelwood SD, MSD, Lambert Airport, Great Rivers Greenway, USACE, MO Botanical Garden, Parkway SD, SLDC, St. Charles Community College)
Associate (Includes Services/Products to the Design and Construction Industry)
Emerging (M/W/DBE Firms in the first few years of formation only)
DBE (DBE Firms under $1.32 M in revenue)
Sole Proprietor Memberships Now Available!

We invite you and your company to become part of our important voice for construction consumers in the St. Louis region!

Contact Kelly Jackson today at 636-394-6200 about how to become a member!