A Legacy of Excellence
GLL is a premier construction and civil engineering firm dedicated to transforming ambitious visions into structural realities.
GLL LLP (formerly Conztru.) is a premier general contracting and structural engineering firm. We specialize in delivering high-value commercial, industrial, and civil infrastructure projects safely, on time, and within budget.
- Fully Licensed & Insured
- ISO 9001:2015 Certified Quality Management
- Award-Winning Safety Protocols
- Sustainable & Green Building Practices
Established
2005
0
Years of Industry Experience
Our Vision
To be the global benchmark in structural engineering and sustainable construction, reshaping skylines and empowering communities through resilient, visionary developments that stand the test of time.
Our Mission
To deliver unparalleled construction solutions by leveraging advanced methodologies, prioritizing worker safety, and fostering transparent partnerships with our clients from the blueprint phase to the final handover.
Principles That Define Us
Safety First
Zero-compromise approach to occupational health and safety on every job site.
Sustainability
Integrating eco-friendly materials and energy-efficient building practices.
Integrity
Absolute transparency in budgeting, timelines, and client communications.
Precision
Meticulous attention to engineering detail and architectural specifications.
Collaboration
Fostering synergistic relationships between architects, builders, and clients.
Innovation
Embracing the latest construction technologies and BIM modeling software.
Ready to Build Something Extraordinary?
Let\'s discuss your next ambitious project.
Meet The Leadership
The seasoned experts steering GLL toward new heights.
Michael Sterling
Chief Executive Officer
Sarah Jenkins, P.E.
Chief Operating Officer
David Chen
VP of EngineeringA Chronology of Growth
Foundation Established
GLL was founded with a small crew of 15 dedicated engineers and builders, taking on local commercial projects.
First Mega-Project
Successfully completed the Horizon Plaza, a $50M downtown development that put us on the map for high-rise capabilities.
National Expansion
Opened three new regional offices and expanded our services into large-scale civic infrastructure and bridge building.
Industry Leaders
Recognized as one of the top 50 general contractors nationwide, pioneering green building standards and smart infrastructure.
Professional Accreditation
