Business Details
50+ Years
experience
Trusted Civil Engineering & Infrastructure Solutions
As an employee-owned collective of engineers, architects, planners, and scientists, SEH is driven to provide technically advanced, sustainable solutions for government, commercial, and industrial partners nationwide. Our 900+ dedicated employee-owners are united by a shared vision to create positive, lasting change. We are deeply committed to fostering an equitable environment and building safer, more sustainable infrastructure for governments, industries, and businesses across the nation. By embracing technology and delivering climate-sensitive design solutions, we strive to improve lives, enhance communities, and establish a legacy of positive change. From our headquarters in St. Paul, Minnesota, to projects from coast to coast, we harness the power of our multidisciplined expertise to create thriving communities that bring people together. Our employee-owned model deepens our commitment to environmental stewardship, client satisfaction, and mutual respect among staff, enhancing project success and community impact.We integrate eco-friendly designs and practices into our projects, ensuring sustainable development and minimal environmental impact. With a tailored approach, we focus on the specific needs of the communities we serve, leveraging our national network of expertise to deliver local solutions with the greatest impact. Our multidisciplinary team blends engineering, architecture, planning, and environmental science to address complex challenges with comprehensive, innovative solutions. We utilize state-of-the-art technology and visualization tools to help clients understand project impacts throughout planning, design, and construction phases. Our nearly century-long heritage ensures exceptional, reliable services grounded in trust and expertise.
Services
Civil Engineering
Environmental Services
Bridge Design
Airport Planning
Asset Management
Land Development
Water Resources
Transportation Planning
Structural Engineering
Surveying
Details
- Year established: 1926
Highlights and features
- We offer 97 years of experience in civil engineering and infrastructure development.
- Our employee-owned model ensures deeper commitment to client satisfaction and project success.
- We integrate eco-friendly designs and climate-sensitive solutions into every project.
- Our multidisciplinary team combines engineering, architecture, and environmental science expertise.
- We leverage state-of-the-art technology for project visualization and planning.
Services
Civil Engineering
SEH provides comprehensive civil engineering services for infrastructure projects including roads, bridges, utilities, and public works. Our team specializes in flood control, geotechnical engineering, and sustainable stormwater management. With expertise in municipal and industrial applications, we deliver solutions that enhance community resilience and operational efficiency. Our services span planning, design, and construction phases, ensuring compliance with regulatory standards while optimizing long-term performance and environmental stewardship.
Environmental Services
Our environmental services focus on remediation, compliance, and sustainable resource management. We assist clients with wetland delineation, contamination assessment, and regulatory permitting. By integrating green infrastructure and climate-resilient practices, we help organizations reduce ecological footprints while meeting compliance requirements. Our multidisciplinary approach ensures environmental stewardship across sectors including water treatment, waste management, and habitat restoration projects.
Bridge Design
SEH offers full-service bridge design, inspection, and rehabilitation for transportation infrastructure. With over 3,500 bridges inspected nationwide, our engineers specialize in load analysis, material selection, and longevity optimization. We employ advanced modeling tools to create safe, cost-effective solutions for new construction and retrofitting projects. Our services include structural assessments, maintenance planning, and compliance with federal safety standards for both vehicular and pedestrian bridges.
Airport Planning
We provide end-to-end airport planning services including master plans, environmental assessments, and airfield design. Our team supports FAA compliance, funding acquisition, and stakeholder engagement for commercial, general aviation, and military facilities. Services encompass runway optimization, terminal development, and airspace analysis. With decades of experience, we deliver solutions that enhance operational efficiency while ensuring safety and regulatory compliance for evolving aviation demands.
Asset Management
Our asset management solutions utilize patented infrared thermography for condition assessment of roofs, pavements, and utilities. We develop lifecycle strategies to optimize maintenance schedules and budget allocation. By combining predictive analytics with sustainability practices, we help clients extend asset longevity while reducing environmental impact. Services include facility audits, capital improvement planning, and implementation of cost-effective repair programs for public and private infrastructure.
People
Dianne Mathews
Senior Engineer
With extensive wastewater conveyance expertise, Dianne Mathews leverages 20+ years of experience to deliver innovative solutions while fostering professional growth within SEH's collaborative environment.
Jen Desrude
Senior Engineer/Project Engineer
Jen Desrude combines municipal government experience with technical excellence in engineering projects, specializing in client-focused solutions that bridge public sector needs with private industry innovation.
Justin Gese
Senior Engineer
As a 24-year SEH veteran, Justin Gese specializes in community-impactful projects, applying multidisciplinary expertise to create sustainable infrastructure solutions that align with regional development goals.
Rafael Estrada Moncada
Project Engineer
Rafael Estrada Moncada contributes to SEH's engineering excellence through innovative project execution, combining technical proficiency with a commitment to quality in every infrastructure solution delivered.
Carolina Rodriguez
Architectural Designer
Carolina Rodriguez brings architectural innovation to SEH's projects, focusing on sustainable design principles and community-centric spaces that reflect both functional requirements and aesthetic excellence.
Questions
What geographic areas does SEH serve?
SEH operates in all 50 U.S. states and Canadian provinces, with 35+ regional offices providing localized expertise backed by national resources.
What industries does SEH specialize in?
We serve public sector clients including federal agencies, municipalities, and tribal nations, plus private sector clients in aviation, healthcare, manufacturing, and commercial development.
How does SEH approach sustainability?
Sustainability is integrated into every project through eco-design practices, climate-resilient infrastructure, and lifecycle analysis to minimize environmental impact while maximizing long-term value.
What makes SEH different from other engineering firms?
As a 100% employee-owned firm since 1926, our ownership structure aligns client success with our team's commitment, combining heritage expertise with innovative problem-solving approaches.
Can SEH handle complex regulatory compliance?
Our team has extensive experience navigating federal, state, and local regulations, including NEPA documentation, environmental permitting, and funding compliance for public infrastructure projects.
What project phases does SEH support?
We provide full lifecycle services from initial planning and design through construction management, asset maintenance, and long-term sustainability monitoring across all infrastructure sectors.
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