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.
Blogs and Members News
Here’s the latest news! If you are member we include you in our news, weekly! Sponsorships are available too!
Keep Your Pipes Flowing This Holiday Season: Illinois American Water Shares Safe Disposal Tips for Fats, Oils & Grease
With holiday cooking in full swing, Illinois American Water is reminding residents to take simple steps to protect their home plumbing and community wastewater systems. The key? Properly disposing of fats, oils, and grease—commonly known [...]
Midwest Construction Outlook: From Record Highs to Realignment
The Midwest’s nonresidential construction market is on track for a historic peak in 2025, with total starts projected to reach $145.5 billion before moderating to $126.9 billion in 2026 and stabilizing near $131.5 billion [...]
2026 AEC Readiness Closer to Home
Here are some of the greatest threats facing the construction industry heading into 2026 — especially relevant for the AEC world you move in — along with how firms (and you, as a leader) might [...]
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!