National Service Alliance – Houston

We are the Backbone of Industry – We Electrify Progress

Who We Are

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National Service Alliance – Houston (NSA) is a specialized division of Quad Plus, offering electrical and automation solutions for industries like oil & gas, marine, and utilities. As an independent entity, NSA leverages Quad Plus’ engineering and support capabilities to deliver turnkey solutions with global resources and advanced technology. Clients benefit from NSA’s industry-specific expertise, supported by Quad Plus’ infrastructure, ensuring innovation and reliability for critical projects.

NSA delivers advanced electrical and automation solutions that power the industries driving global infrastructure. From custom-built power distribution systems to cutting-edge automation, we design, manufacture, and integrate solutions that maximize efficiency, reliability, and safety. Our expertise in low and medium voltage power systems, VFDs, and industrial automation ensures that every project we deliver meets the highest standards of innovation and performance.

6410 Langfield Road, STE A, Houston, TX 77092

Our Services

NSA provides fully integrated power, control, and automation solutions for critical industries. Our expertise includes:

Power Electronics & OEM Manufacturing

Custom Variable Frequency Drives (VFDs) and E-House solutions for optimized industrial power distribution.
Low & Medium Voltage Power Systems designed for efficiency, scalability, and durability.
Outdoor & Mobile Power Solutions for on-site industrial applications.

Automation & System Integration

Advanced control system design using Siemens, Rockwell, and Modicon platforms.
Custom electrical and mechanical design for industrial automation and smart power management.
AC/DC system analysis, relay protection settings, and harmonic studies for power reliability.

Testing, Commissioning & Field Services

End-to-end project testing and commissioning to ensure compliance and peak performance.
Installation, retrofits, and remote troubleshooting for operational uptime.

Industries We Serve

NSA powers mission-critical industries with engineered electrical solutions:

Oil & Gas

E-Frac electrification, mobile power distribution, and high-horsepower drilling VFDs.

Download Oil & Gas Flyer

Marine

Electric propulsion, winch & crane automation, and offshore control systems.

Download Marine Flyer

Automation

PLC programming, process control, robotics integration, and smart system optimization.

Download Automation Flyer

Utilities & Data Centers

Microgrid power solutions, switchgear integration, and transformer control.

Case Studies

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national service alliance houston cs on drive programming

case study on offshore rig drive system retrofit

national service alliance houston case study on custom drive

Partner with NSA

At NSA, we don’t just supply equipment—we engineer solutions that power industry forward. Whether upgrading existing infrastructure or integrating next-generation automation, we provide the expertise and support to build, sustain, and optimize your operations.

Contact a Specialist