Civil Engineers

Mark Thomas provides sound and innovative engineering solutions and responsive customer service for public works projects. Our civil engineers have delivered hundreds of roadway, highway, drainage, utility, and infrastructure projects for California agencies.

Structures Engineers

Mark Thomas structural engineers deliver top-tier transportation, flood control, and water/wastewater structure projects. This includes the design of new bridges, bridge replacements and rehabilitations, retaining walls, soundwalls, flood walls, water reservoirs, pump station housings, and other structures.

Construction Managers

Our construction management team is focused on providing high quality oversight of capital infrastructure projects for local agencies. Our team is experienced with construction projects ranging from utility installation, roadway improvements and widening, and structure construction.


Our land surveying division is one of California’s most well respected surveying service providers. We provide large and small landnet surveys, ALTA/ACSM surveys, project control surveys, topographic design surveys, right of way engineering and survey support services, utility mapping, and construction staking. Our survey staff can provide legal descriptions, appraisal mapping, Resolution of Necessity drawings and Right of Way Record mapping.

Landscape Architects

Mark Thomas provides fully integrated and comprehensive landscape architecture services. Our projects are site-responsive and community-focused, ensuring that the characteristics of the natural and built environments blend together holistically to reinforce community identity and enhance the user experience.

Planners and Urban Designers

At Mark Thomas, we prepare master plans that range in scale from local facilities and parks to regional transportation networks. We bring a real world design perspective to each master plan to identify realistic and implementable strategies.