Transmission

Any configuration. Any voltage. Any terrain.

Irby is Looking for A Few Good (Line)Men

We’re hiring! Take a look at our careers page for more information.

Emergency Restoration

Hurricane season is here and we are ready!

Bozeman Road Distribution Work

Featured Distribution Project

Irby Construction was awarded the Bozeman Road Project in May of 2017 by Entergy Mississippi. The project scope consisted of adding three new circuits out of the existing Bozeman Rd Substation in Madison, MS due to a new transformer addition.

Port St. Joe to Callaway 230kV Rebuild

Emergency Storm Restoration

Hurricane Michael made landfall on October 10th, 2018 near Mexico Beach, Florida. Duke Energy’s 230kV 34-mile PX line from Port St. Joe to Callaway was damaged beyond repair.

IRBY CONSTRUCTION COMPANY builds power infrastructure on a turnkey basis. As a premier transmission construction company, we have built high-voltage power line projects that span the entire United States— from the pacific coast to the eastern seaboard. Our work has even taken us to other countries across the globe. Irby also constructs and connects substations and distribution systems. So, our scope of services covers power delivery systems every step of the way—from generation, down the line and into homes and businesses. 

We’re Like Family at Irby

We started as a family business and have carried that culture forward. There’s a pride that comes with working here and it shows in our work. Irby Construction Company’s extraordinary record of success can be attributed to our people who are among the most respected, experienced and talented in the industry. More than a company name that has been around for generations, Irby brings to the table a team of people who have been in this business for decades.

Want to learn more about us? Watch the video here or on Vimeo.

FEATURED PROJECTS

WATTS IN THE NEWS

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HIRE IRBY

Submit an RFP, learn about our capabilities, or tell us about a project.

JOIN OUR TEAM

Learn about current openings or contact us by clicking here.

EMPLOYEE INFO

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WORK WITH US

Learn more about our subcontractor management program by clicking here.

CONTACT HR DIRECT:

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CONTACT US:

318 Old Highway 49 South
Richland, Mississippi 39218-9449

Phone: 601-709-4729
Email: [email protected]

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Irby Construction Company

Day 3 of Brake Safety Week: Preventive Brake Maintenance. đź”§Preventive brake maintenance isn't just scheduled at Irby Construction Company; it's prioritized. Our certified technicians perform regular brake inspections, replace worn components before they fail, and ensure every vehicle in our fleet maintains optimal braking abilities.Quality parts, outlined maintenance schedules, and expert care keep our drivers safe and our communities protected. When prevention comes first, everyone wins.Building safety into every mile. đźš›#BrakeSafetyWeek #safety #IrbyConstruction #AbsolutePerformance #wearequanta Quanta Services, Inc. ... See MoreSee Less
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Day 2 of Brake Safety Week: Commercial Vehicle Inspections Matter. 🔍At Irby Construction Company, thorough CMV inspections are the foundation for safe operations. These comprehensive safety checks examine brake systems and other key vehicle functions, ensuring our trucks and equipment can stop safely every time.When our fleet passes these rigorous inspections, it validates our commitment to excellence. Our drivers, mechanics, and fleet management teams work together to exceed safety standards, not just meet them.Every passed inspection means our vehicles are truly road-ready and our drivers are protected. That's the Irby standard.#BrakeSafetyWeek #safety #IrbyConstruction #AbsolutePerformance #wearequanta Quanta Services, Inc. ... See MoreSee Less
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Irby Construction is putting the spotlight on Brake Safety Week 2025, running August 24-30. 🚦This nationwide push is all about one thing: keeping rigs road-ready and keeping those who drive them safe. Roadside inspections and education remind drivers, mechanics, and carriers alike that proper brake inspection, maintenance, and operation aren’t optional; they’re critical.All week, we’ll break down what brake safety means for Irby and why it matters on every mile we cover. Learn more here: cvsa.org/news/2025-bsw/#BrakeSafetyWeek #Safety #IrbyConstruction #AbsolutePerformance #WeAreQuanta Quanta Services, Inc. ... See MoreSee Less
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Ensuring reliability from the ground up during storm restoration on job 3600! 🛠️⚡️#IrbyConstruction #AbsolutePerformance #wearequanta #quantaprojects #Arkansas Quanta Services, Inc. ... See MoreSee Less
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On August 20, 2012, Irby moved from its original building in downtown Jackson to aspacious corporate facility in neighboring Richland, MS.#IrbyConstruction #AbsolutePerformance #wearequanta Quanta Services, Inc. ... See MoreSee Less
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Casey Lawrence, one of our truck drivers, took his work truck down to the Gulf Coast Big Rig truck show in Biloxi, MS a few weeks back and brought back an award with him.He brought home an award for “Best Combo Lights”. All of the lights on the truck and trailer will work in legal amber and red colors, but with a flip of a switch they all turn over to Irby Blue. #IrbyConstruction #AbsolutePerformance #WeAreQuanta #TruckShow Quanta Services, Inc. ... See MoreSee Less
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Irby Construction Company is a wholly-owned subsidiary of Quanta Services, Inc. (NYSE: PWR).