Business Details
50 Years
experience
Engineering and Construction Services in Portland, OR
David Evans & Associates (DEA) has been a leader in engineering, design, and construction services since 1976, driven by a commitment to innovation and excellence. With over 47 years of experience, we combine multidisciplinary expertise in transportation, land development, water resources, and energy projects to deliver tailored solutions for complex challenges. Our team of more than 1,000 professionals leverages cutting-edge technology and a collaborative approach to ensure project success while prioritizing environmental stewardship. As an employee-owned company, we foster a culture of accountability, transparency, and continuous improvement, reflected in our recognition as a Best Place to Work and recipient of industry accolades. Our core values guide every project, ensuring clients receive reliable, sustainable, and forward-thinking results.Headquartered in Portland, Oregon, DEA operates nationwide with offices across 10 states, offering localized expertise backed by national resources. We emphasize clear communication, proactive problem-solving, and long-term partnerships to exceed client expectations. Our investments in advanced systems and employee development ensure we remain at the forefront of industry advancements. From initial planning to project completion, DEA delivers outcomes that enhance community infrastructure and quality of life. Our dedication to ethical practices and client satisfaction has solidified our reputation as a trusted industry leader.
Services
Energy Development
Land Development
Transportation Engineering
Water Resources Management
Surveying
Marine Services
Environmental Planning
Construction Engineering
Urban Infill Projects
Railroad Infrastructure
Details
- Year established: 1976
Highlights and features
- We have over 47 years of proven success in engineering and construction.
- Our employee ownership model aligns success with client satisfaction.
- We invest in cutting-edge technologies for efficient project delivery.
- We maintain a flexible benefits program tailored to employee needs.
- Our multidisciplinary team offers comprehensive solutions under one firm.
What people say
Technical expertise
Reliable project delivery
Innovative solutions
Strong communication
Sustainability focus
Services
Energy Development
We design and manage complex energy infrastructure projects, including renewable energy systems and traditional power facilities. Our expertise spans wind, solar, and hydroelectric solutions, focusing on sustainability and regulatory compliance. We deliver end-to-end services from feasibility studies to construction oversight.
Transportation Engineering
We provide comprehensive transportation solutions for highways, bridges, and transit systems. Our services include design, safety improvements, and environmental impact assessments. We specialize in integrating smart mobility technologies for efficient, future-ready infrastructure.
Land Development
We create mixed-use, residential, and commercial developments with a focus on sustainable design. Our services include site planning, zoning compliance, and infrastructure coordination. We prioritize community needs while balancing environmental and economic considerations.
Marine Services
We conduct precision navigation, underwater mapping, and marine construction support. Our services include flood control assessments and environmental site characterization. We use advanced sonar and scanning technologies for accurate data collection in coastal and riverine environments.
Surveying
We offer traditional and high-tech surveying solutions, including 3D laser scanning and GIS mapping. Our services support infrastructure projects, boundary determinations, and asset management. We ensure precise data for informed decision-making across all project phases.
People
Al Barkouli
Chairman and CEO
Al Barkouli leads DEA with a focus on strategic growth and client relationships. He oversees corporate governance and ensures alignment with the firm's core values. His leadership emphasizes innovation and long-term sustainability.
Sean Sullivan
Energy Business Unit Leader
Sean Sullivan directs energy sector projects, combining technical expertise with market insights. He specializes in renewable energy systems and grid modernization. His leadership ensures solutions that balance efficiency and environmental responsibility.
Jon Dasler
Marine Services Division Leader
Jon Dasler oversees marine engineering and hydrographic survey projects. He specializes in coastal infrastructure and environmental monitoring. His team delivers data-driven solutions for complex aquatic environments using advanced technologies.
R.A. Plummer
Transportation Business Unit Leader
R.A. Plummer manages transportation infrastructure projects, focusing on safety and efficiency. He has extensive experience in highway design and transit systems. His approach integrates stakeholder input with technical excellence for optimal outcomes.
Craig Sheahan
Water and Environment Business Unit Leader
Craig Sheahan leads water resources and environmental compliance initiatives. He specializes in watershed management and regulatory permitting. His work ensures sustainable water infrastructure that meets ecological and community needs.
Questions
What services does DEA offer?
DEA provides engineering, surveying, planning, and construction services for transportation, energy, land development, and environmental projects.
How long has DEA been in business?
DEA has operated since 1976, with over 47 years of experience in engineering and design.
Where does DEA operate?
DEA serves clients nationwide with offices in 10 states, including Oregon, California, and Texas.
Is DEA employee-owned?
Yes, DEA is an employee-owned firm through its Officer Program, aligning ownership with project success.
What industries does DEA specialize in?
DEA specializes in transportation, energy, water resources, marine services, and land development projects.
