Renewable Energy

Learn about our renewable energy and distributed generation solutions


Civil Engineering & Surveying

Site development, structural and environmental engineering, and land surveying.


Power Delivery

P&D offers a comprehensive suite of distribution system and field services.

Proudly Serving Clients Since 1947

Utility Solutions

We offer electrical, civil and structural engineering and professional services to investor-owned, co-operative and municipal electric utility clients throughout the United States.

Civil Engineering

With a special focus on utility and transportation projects, Patterson & Dewar offers civil engineering and surveying solutions tailored to the specific needs of each engagement.

Testing & Commissioning

P&D offers comprehensive testing and commissioning of complex electrical components and system controls for utilities, cooperatives and municipalities across the United States.

SCADA Solutions

P&D stands ready to be your trusted advisor, engineer, and collaborator with decades of experience in SCADA/EPMS, application integration, communications and automation solutions.

About Patterson & Dewar

Since 1947, Patterson & Dewar Engineers, Inc. has delivered best in class electrical and civil engineering and construction management services, specializing in designing and evaluating vital infrastructures for clients across the U.S.

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Careers at P&D

P&D is 100% employee-owned. We offer competitive compensation, a comprehensive benefits package, and the opportunity to learn, grow and contribute to a vibrant culture that stands the test of time.

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