Engineering is the Foundation of Civilization
Waldemar S. Nelson & Co., Inc. (NELSON) is a multidisciplinary engineering and architectural firm founded in New Orleans in 1945. With over 80 years of experience, the practice delivers integrated civil, structural, architectural, mechanical, chemical process, electrical, and control systems engineering services for complex industrial, energy, marine, and government projects worldwide. It operates offices in New Orleans and Houston, employing licensed professional engineers across multiple U.S. states and Canadian provinces.
Integrated planning, design, and visualization solutions for complex facilities, infrastructure, and marine environments.
Site planning, infrastructure development, and structural analysis for industrial and commercial projects.
Analysis and design of robust structural systems for industrial, offshore, and transportation facilities.
Coordinated spatial design that blends architectural standards with technical civil and structural requirements.
Early-stage design visualization and conflict identification using coordinated 3D drafting tools.
Technical engineering support for process-driven onshore and offshore facilities across industrial, energy, and mining sectors.
System analysis, optimization, and reliable design for chemical plants, refineries, and pipelines.
Practical mechanical solutions, equipment specifications, and design modifications for new and existing facilities.
Early-stage project evaluations, conceptual design audits, and capital cost estimates.
Comprehensive power solutions from conceptual studies to detailed system design, construction, and operational support.
Design of low-voltage and medium-voltage power distribution systems, cogeneration systems, and transmission lines.
Technical studies encompassing harmonic analysis, system reliability, and load flow performance utilizing advanced modeling software.
Instrumentation and automation systems designed to ensure safe, reliable, and compliant operation of complex industrial plants.
Programming, integration, and upgrading of PLC and DCS systems for facility control.
Design and start-up support for safe and code-compliant measurement and control instrumentation.
PMP-certified management services guiding projects through the complete lifecycle from concept to commissioning.
Comprehensive coordination of multidisciplinary teams to manage scope, schedule, budget, and quality.
On-site support, bid package preparation, and start-up assistance for successful facility handovers.
Oil & Gas · Petrochemical · Electric Utilities · Power Transmission & Distribution · Renewable Energy · Mining · Marine · Government · Industrial · Chemicals · Aerospace · Space
New Orleans, LA · Space · 2026 · Client: NASA
NELSON provided engineering support for the Artemis II human spaceflight program, leveraging a long-term relationship with NASA facilities including the Michoud Assembly Facility in New Orleans.
New Orleans, LA · Space · 1966 · Client: NASA
NELSON assisted with the design of the specialized paint booth for the Saturn 1B rocket built at the Michoud Assembly Facility.