delivers Excellence

With in-house engineering, design, and fabrication, M. D. Henry Company is the quality manufacturer for your transmission and substation needs.

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over 50 years of quality –

Your Trusted Transmission and Substation Partner, Since 1970

M. D. Henry Company (MDH) has been a trustworthy provider of transmission and distribution products and services for the electrical power industry for over five decades. Over the years, we've provided the material and services for over 10,000 projects in the utility, municipal, and industrial markets while also supplying distributors and contractors.

We're proud that MDH is large enough to meet nearly all T&D needs, from generator terminals to the distribution lines. We're more proud, however, to be small enough to provide friendly and immediate service to meet our customers' most critical schedules.

Operating from our headquarters in Pelham, AL, with a 120,000 s.f. facility, MDH serves clients across the United States and the globe. We are unique in that we provide our own in-house engineering, on-premises steel fabrication, and packaging in our separate 10,000 s.f. warehouse – all to make business better for our customers.

Steel worker in hard hat smiles for the camera
our capabilities

From generator terminals to distribution lines, MDH has the capability to meet nearly any T&D needs. We also provide in-house engineering, on-premises fabrication, and packaging.

MDH's package substation

PackageD Substation

MDH's standard Substation Packaging includes equipment and materials for the ground grid, fence, steel structures, anchor bolts, switches, CT's, PT's, CCVT's, lighting, station service transformer, bus, connectors, jumpers, and other associated hardware.

Transmission Line Manufacturing

Our Transmission Line Manufacturing division provides a complete line of engineered, tapered steel poles, and wood-equivalent steel poles for transmission, distribution, and other similar applications. We finish these products by painting, weathering, or galvanizing as needed.

MDH's transmission lines in Alabama
Steel worker in hard hat smiles for the camera
"This is a really good quote from a really happy customer or employee to show authority and empathy. People like good quotes."
– Stevie Wonder, Singer and Pianist
our commitment to quality –

we're fully committed to your team's success

You'll never have to worry when you work with MDH. Our commitment to Quality, Experience, and Service ensures that you'll be completely satisfied with your project every step of the way.


The majority of our employees have over two decades of experience with the company, dedicating their careers to quality substation and transmission products. Our QA/QC personnel, full-time third party inspectors, and unbiased reviews from third parties ensure that we maintain the highest quality in everything we do.


M.D. Henry Company has been serving the electric utility industry for over 50 years. To date we have successfully completed over 10,000 projects.  MDH has provided transmission and distribution packages all over the United and States and internationally.  


The MDH organization is large enough to meet your needs, yet small enough to provide personal and immediate service to our customers. With our in-house engineering capabilities and onsite fabrication, we’re able to fulfill your most challenging requests.

we look forward to hearing from you! –

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