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Patterson & Dewar Engineers, Inc.

Established in 1947, P&D provides electrical & civil engineering, land surveying, and construction management to electric utility clients. Our wholly-owned subsidiary, Hood Patterson & Dewar (HP&D), is a leading provider of electrical and mechanical testing and commissioning services in data centers and critical facilities. Together, we offer a wide range of services to clients across the country and around the world.

Our team comprises experienced and knowledgeable professionals who have dedicated their entire careers to serving our clients, others who began their careers elsewhere and now broaden our collective expertise, and recent grads and interns who bring enthusiasm and fresh perspectives that fuel innovation and teamwork. We are united by a common charter – approach each project with an unyielding commitment to excellence and integrity and exceed expectations. These guiding principles make us a trusted ally to the clients we proudly serve.
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We specialize in electrical and civil engineering and construction management services, including designing and evaluating vital power delivery infrastructures for electrical cooperatives, municipalities, investor-owned utilities, and private entities such as industrial facilities and data centers.... Read more


To be our clients’ first choice by empowering each employee to provide reliable solutions drawing on decades of technical expertise.... Read more


To champion a servant leadership mentality to create strong personal relationships, client success and employee satisfaction.... Read more

Additional Culture Details

What truly distinguishes P&D from other firms is the team of dedicated, experienced, knowledgeable professionals we have been fortunate enough to attract and retain. Our people are our most valuable asset. We are a niche firm composed of talented professionals, many of whom have spent their entire careers serving utility clients. Others who began their careers elsewhere now broaden our collective expertise, and our recent grads and interns provide enthusiasm and fresh perspectives that fuel innovation and teamwork.... Read more


At P&D, we approach each project with the same objectives in mind: tailor a solution to the client’s specific needs and exceed their expectations. We treat each project as if it were our own, providing hands-on management with a dedicated focus on quality control and continuous improvement.

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