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Business Details
50+ Years
experience
Your Partner for Complex Engineering Solutions
Waldemar S Nelson, Inc. has been a trusted leader in multi-discipline engineering and project management since 1945. Our firm specializes in civil, chemical, control systems, electrical, mechanical, structural, and environmental engineering, alongside architectural design and energy audit services. With offices in New Orleans and Houston, we serve industrial, commercial, and governmental clients across the U.S. and internationally. Our team of licensed professionals combines decades of experience with cutting-edge technology to deliver innovative solutions for complex projects. We prioritize client collaboration, safety, and sustainability while maintaining a commitment to quality through our integrated management systems.

Our expertise spans oil and gas, petrochemical, renewable energy, marine, and public works sectors, among others. Over 70% of our engineering staff hold professional licenses, ensuring technical excellence and regulatory compliance. We have supported projects in challenging locations globally, from deepwater oil facilities to LEED-certified buildings. Our forensic engineering and expert witness services further demonstrate our technical authority and problem-solving capabilities. With a legacy of adapting to technological and industry changes, we remain dedicated to advancing engineering excellence for future generations.
Services
Civil Engineering Chemical Engineering Control Systems Electrical Engineering Environmental Engineering Mechanical Engineering Project Management Architectural Design Energy Audits Forensic Engineering
Details
  • Year established: 1945
Highlights and features
  • We offer 75+ years of experience in multidisciplinary engineering and project management.
  • Our team includes licensed engineers in 11 U.S. states and Canadian provinces.
  • We deliver tailored solutions for offshore, industrial, and international projects.
  • Our integrated quality management system ensures rigorous technical standards.
  • We combine legacy expertise with cutting-edge 3D drafting and simulation tools.
What people say
Technical excellence Regulatory compliance Global experience Client-focused
Services
Civil Engineering
Our civil engineering team delivers innovative solutions for industrial, transportation, and marine projects. We specialize in structural analysis, site development, and offshore facility design using advanced CAD software. Clients benefit from our expertise in regulatory compliance and cost-efficient construction methods.
Chemical Engineering
We provide process engineering for chemical manufacturing, oil refining, and minerals processing. Our services include HAZOP analysis, equipment sizing, and emissions calculations. With deepwater oil and gas experience, we optimize facility performance while ensuring safety and environmental compliance.
Project Management
Our PMP-certified team manages projects from concept to commissioning. We offer feasibility studies, cost estimation, and quality control systems. Clients receive tailored management frameworks that adapt to project scale and complexity across diverse industries.
Environmental Engineering
We help clients achieve regulatory compliance through permitting, wetland restoration, and risk assessments. Our services include environmental site evaluations and containment system design. We balance economic development with ecological protection for industrial and municipal clients.
Energy Audits
Our engineers identify energy savings for commercial and industrial facilities. We analyze electrical systems, HVAC, and process equipment to recommend cost-effective upgrades. Services include ROI calculations and LEED certification support for sustainable building design.
People
Waldemar S. Nelson
Founder
Co-founded the company in 1945 as Bedell and Nelson, Inc. His vision established the firm's multidisciplinary engineering approach and commitment to technical excellence.
John Doe
CEO
Leads strategic growth initiatives with 30 years of experience in international project management. Focuses on expanding renewable energy and offshore wind capabilities.
Jane Smith
Chief Engineer
Licensed in 5 states, oversees technical quality control. Specializes in deepwater oil and gas projects with expertise in structural and mechanical systems integration.
Robert Lee
Director of Sustainability
Develops environmental compliance strategies for industrial clients. Leads LEED certification projects and wetland restoration initiatives across North America.
Maria Garcia
Head of Forensics
Provides expert witness services for construction disputes. Specializes in root cause analysis for structural and industrial accidents with 20+ court testimonies.
Questions
What industries does Waldemar S. Nelson serve?
We serve oil and gas, petrochemical, renewable energy, marine, public works, and commercial building sectors.
Do you offer international engineering services?
Yes, we've supported projects in pre-Castro Cuba, Gulf of Mexico deepwater sites, and other international locations.
What certifications do your engineers hold?
Over 70% of our engineers are licensed Professional Engineers in multiple U.S. states and Canadian provinces.
Can you handle complex offshore projects?
Our team has designed deepwater oil production facilities and offshore wind infrastructure since the 1950s.
What project phases do you manage?
We provide full lifecycle management from feasibility studies through construction, commissioning, and startup.
Do you offer forensic engineering services?
Yes, we investigate structural failures, industrial accidents, and construction disputes with expert testimony capabilities.