T-REX offers a unique, thriving entrepreneurial ecosystem that supports the creation and growth of scalable tech companies in the heart of Downtown St. Louis. We purposely co-locate growing early-stage startups alongside a network of support organizations and larger, established companies and institutions, fostering symbiotic relationships to accelerate the success of all T-REXers. Meet familia T-REX below:

Support Organizations

Organizations within T-REX providing a canopy of support for STL tech startups, students & aspiring entrepreneurs:

America's Small Business Development Center: Missouri Branch
Cultivation Capital
Cyber Up
Harris Stowe-State University GeoHornet Lab
Innovation, Technology, and Entrepreneur Network | A Division of Lindenwood University
St. Louis MBDA Business Center
St. Louis Small Business Empowerment Center

Learn more about our support organizations…

Bedrock Companies and Institutions

Long-term companies/institutions rooted in T-REX whose presence & industry expertise is foundational to our growing ecosystem:

AIA: St. Louis
Citizens for Modern Transit
Downtown CID
Health Literacy Media
KW Law

M3 Engineering
Moonshot Labs
Planet Federal
Reinventing Geospatial Inc.
UMSL | National Security and Community Policy Collaborative
Wiser Imagery Services

Geospatial Innovation Center @ T-REX

On the 4th floor of T-REX is the nation’s first cutting-edge research and collaboration center specifically for geospatial innovation, technology commercialization, and workforce development. Startups, researchers, government partners, and supportive sector leaders can collaborate and share resources amid an atmosphere of active learning classrooms, cutting-edge interactive and remote technology, and spacious world-class office space.







And that’s not all…

Over 100 drop-in coworking members, faculty and students from our various University Partners, and our gracious network of donors are all essential community builders as well. These individuals and organizations may not have dedicated suite numbers within our historic building, but are absoluely true-green T-REXers.


Want to learn more about our vast ecosystem?

We’re always within reach!