Business Details
39 Years
experience
Civil Engineering & Construction Management Services in Los Angeles
At D'Leon Consulting Engineers, we are dedicated to delivering transformative infrastructure projects that enhance communities through civil engineering, program management, and construction management. With over 30 years of expertise, our firm has played pivotal roles in some of the nations largest transportation and infrastructure initiatives, partnering with public agencies to improve connectivity, resilience, and quality of life. Our core values of integrity, quality, and diversity guide every project, ensuring proactive, innovative solutions that exceed client expectations. We specialize in aviation, rail, transit, highway design, and utility coordination, with deep experience in environmental planning and complex engineering documentation. Our long-standing relationships with agencies like LA Metro, LAWA, and the Port of Long Beach underscore our commitment to civic partnership and technical excellence.By maintaining rigorous standards in project delivery, we consistently achieve on-time, on-budget results for clients across Southern California and beyond. Our team of seasoned engineers and managers brings decades of local knowledge to every project, from major transit corridors like the Purple Line Extension to airport modernization efforts at LAX. As a certified Small Business Enterprise and Minority-Owned Business Enterprise, we prioritize diversity and inclusion in all aspects of our work. Through continuous innovation and collaboration, we strive to shape infrastructure that meets evolving community needs while upholding sustainability and resilience. Joining our team means contributing to impactful projects that redefine urban landscapes and transportation systems for future generations.
Services
Civil Engineering
Program Management
Construction Management
Transportation Infrastructure
Rail & Transit Projects
Highway Design
Utility Coordination
Environmental Planning
Project Documentation
Airport Modernization
Details
- Year established: 1987
Highlights and features
- We offer 30+ years of experience in civil engineering and infrastructure projects.
- Our team has led engineering roles in major transit programs like the Purple Line Extension.
- We maintain long-standing partnerships with agencies including LA Metro and LAWA.
- Our projects consistently deliver on-time and on-budget results.
- We specialize in complex utility coordination and environmental planning documentation.
Associations and certifications
- Small Business Enterprise
- Minority-Owned Business Enterprise
- Disadvantaged Business Enterprise
Services
Civil Engineering
We provide comprehensive civil engineering services for transportation, aviation, and utility projects. Our expertise includes environmental planning, project documentation, and conflict resolution for gas, water, and sewer systems. With decades of experience, we deliver resilient, code-compliant solutions tailored to public and private sector needs.
Program Management
Our program management ensures seamless execution of large-scale infrastructure initiatives. We coordinate stakeholders, manage budgets, and maintain timelines across highway, rail, and airport projects. Clients benefit from our proven track record in managing complex programs like the California High-Speed Rail and LA Metro's Zero-Emission Bus Program.
Construction Management
We offer end-to-end construction management, from planning to completion. Our team oversees quality control, safety protocols, and compliance for transit, aviation, and highway projects. Recent work includes the Midfield Satellite Concourse at LAX and the Sepulveda Transit Corridor, ensuring adherence to specifications and deadlines.
Rail & Transit Projects
We specialize in rail and transit infrastructure, including light rail lines and bus rapid transit systems. Our projects span the Expo Line, Crenshaw/LAX Line, and North Hollywood to Pasadena BRT. We focus on enhancing urban mobility, safety, and accessibility while minimizing community disruption.
Highway Design
Our highway design services address complex roadway challenges, including Interstate and State Route improvements. We integrate utility coordination, stormwater management, and traffic flow analysis to create efficient, sustainable road networks that support regional growth and safety standards.
People
Borja Leon
President & Principal
Borja Leon leads D'Leon Consulting Engineers with a focus on strategic growth and technical excellence. He oversees major projects and maintains client relationships, ensuring alignment with the firms mission to deliver impactful infrastructure solutions.
Ryan Browne
Vice President
Ryan Browne manages key engineering initiatives and project teams. His expertise in civil infrastructure and commitment to quality ensure successful delivery of complex transportation and utility projects across Southern California.
Terence Strong
Vice President Transportation PM/CM
Terence Strong specializes in transportation program management, leading Western Region operations. He brings decades of experience in overseeing large-scale transit and highway projects, emphasizing efficiency and stakeholder collaboration.
Tess Nguyen
Operations Manager
Tess Nguyen directs day-to-day operations, ensuring seamless project execution and resource allocation. Her leadership supports DLCEs commitment to timely, budget-conscious delivery of civil engineering and construction management services.
Paul Spiteri
Senior Construction Manager
Paul Spiteri supervises construction activities for major infrastructure projects. His hands-on approach ensures compliance with design specifications, safety standards, and project timelines for clients like LA Metro and LAWA.
Questions
What services does D'Leon Consulting Engineers offer?
We specialize in civil engineering, program management, and construction management for transportation, rail, aviation, and utility infrastructure projects.
How long has DLCE been in business?
Founded in 1987, we have over 35 years of experience delivering infrastructure solutions in Southern California and beyond.
Which notable projects has DLCE worked on?
We’ve contributed to the Purple Line Extension, Crenshaw/LAX Line, LA Metro Bus Rapid Transit, and LAX modernization programs.
Is DLCE certified as a minority-owned business?
Yes, we are certified as a Minority-Owned Business Enterprise and Disadvantaged Business Enterprise.
