
3 Phase Associates LLC
Chattanooga, TNElectrical Engineering and Consulting Services
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Electrical Engineering and Consulting Services

Industrial Design, Automation, and Engineering Solutions

Clark Nexsen is a transdisciplinary architecture and engineering practice founded in 1920, with nearly 400 employees across nine offices. It joined JMT in 2025. It provides architecture, civil, structural, mechanical, electrical, fire protection, process, and transportation engineering services to clients in education, defense, government, healthcare, commercial, and infrastructure markets across the United States.

Multi-Discipline Engineering, Design, and Precision Fabrication

Boiler, combustion, thermal, and steam systems engineering.

D4C Product Development is a San Diego-based engineering and product development practice that guides hardware products from concept to market. It integrates mechanical, electrical, and software engineering with industrial design, prototyping, and manufacturing support, serving consumer electronics, IoT devices, environmental technology, and public safety markets.
Delivering Innovative Engineering Strategies to Ensure Project Success
Help clients solve their engineering and design challenges and get to market quickly.

Engineering for Everything.

Bringing Innovation to Today's Technical Challenges

Engineering & Architecture

Reliability & Innovation Since 1982

Engineering Solutions Exceeding Expectations

Multidisciplinary engineering for industrial, energy, and mission-critical systems.

Automation Starts Here
Creating the built environment...for people!

Engineering Excellence for Complex Challenges
The Architects' Engineer
MEP & Fire Protection Engineering Services
Established in 2018, Hyatt Engineering & Design Services LLC provides multi-disciplinary engineering, software development, and technical support across the United States. Originating with extensive experience in the telecommunications industry, the practice offers specialized services in electrical engineering, radio frequency design and testing, mechanical engineering, technical writing, and E/M/CAD design support. Operating from its corporate office in Newark, Delaware, it supports clients with flexible onsite and remote solutions to meet critical design and manufacturing deadlines.
Integrity. Initiative. Innovation.

Your One-Stop Shop for MEP and Structural Engineering

Design & Product Innovation Firm

Experienced, Passionate, and Dedicated to Client Service