We're thinkers and doers with a passion
for transit and dedication to our community.
Connect with our team.
Domingo Leon founded D'Leon Consulting Engineers in 1987. Under Mr. Leon’s leadership and professional experience, DLCE has played an active role in Southern California's development of major public infrastructure projects and in the engineering community as a whole. Learn more about Domingo's legacy.
Borja Leon, PE
PRESIDENT & PRINCIPAL
Borja Leon is a transportation and infrastructure professional with close to 20 years of experience in both the private and public sectors. He has led the advancement and implementation of major infrastructure projects in the Los Angeles, Orange County, San Diego and Sacramento. He joined D’Leon Consulting Engineers in November 2018 and is the Managing Director for all the company’s transportation, aviation, construction and program management practices.
Ryan Browne is an experienced civil engineering professional with over 20 years of project management and design experience. Mr. Browne applies his civil design knowledge and project management experience during all phases of complex transit and infrastructure projects.
Paul Spiteri, EIT
Paul Spiteri has 21 years of experience in civil engineering design and construction management with a project history totalling over $18 billion. Mr. Spiteri has worked on airport modernization, transportation infrastructure (bridges, tunnels, railways, and roads) as well as land development.
Tess comes from a diverse background in administrative and operation management, working in multiple industries such as retails, health care, and civil engineering. Here at D’Leon, Tess manages the behind the scene operations, which include but are not limited to, vendor/client relations, budget, project proposal, document control, and streamlining processes.