Celebrating our history. building the future.

Watch our Anniversary Video!

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Transmission

Any configuration. Any voltage. Any terrain.

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Irby is Looking for A Few Good (Line)Men

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

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Emergency Restoration

Hurricane season is here and we are ready!

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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.

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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.

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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. 

Transmission
Renewables
Distribution
Telecommunications
Substation
Outdoor Lighting
Foundation
Emergency Restoration

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.

Irby Construction: Proud Past, Clear Future from Irby Construction Company on Vimeo.

FEATURED PROJECTS

Storm Damage Assessment After Hurricane Ian

Storm Damage Assessment After Hurricane Ian

August 11, 2023
Patterson – S. Nashville 138kV Transmission Line Rebuild Project

Patterson – S. Nashville 138kV Transmission Line Rebuild Project

October 12, 2022
Entergy Harahan-Avondale

Entergy Harahan-Avondale

July 20, 2022
FPL EVolution HUB

FPL EVolution HUB

February 10, 2022
New England Clean Energy Connect Transmission Line

New England Clean Energy Connect Transmission Line

February 1, 2022
Sunshine Gateway Battery Energy Storage Center

Sunshine Gateway Battery Energy Storage Center

August 27, 2021
Manatee Battery Energy Storage Center

Manatee Battery Energy Storage Center

June 22, 2021
Florida Power & Light Underground Lateral Hardening

Florida Power & Light Underground Lateral Hardening

October 17, 2019
Bozeman Road Distribution Project

Bozeman Road Distribution Project

April 2, 2019
Port St. Joe-Callaway 230kV Transmission Line Upgrade Project

Port St. Joe-Callaway 230kV Transmission Line Upgrade Project

March 21, 2019
Northeast 138kV Substation Upgrade Project

Northeast 138kV Substation Upgrade Project

February 19, 2019
Colton Lane Substation Upgrade Project

Colton Lane Substation Upgrade Project

December 19, 2018

WATTS IN THE NEWS

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Learn about current openings or contact us by clicking here. 

CAREERS

EMPLOYEE INFO

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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

Irby Construction Company

1 day ago

Irby Construction Company
Irby Construction Company is hiring a Project Safety Coordinator in Georgia! Applicants must be legally authorized to work in the United States. No employer sponsorship is offered for this position. To learn more about the position and to apply, visit: www.irbyconstruction.com/careers/ ... See MoreSee Less

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Irby Construction Company

2 days ago

Irby Construction Company
Drew Boulton is a Superintendent within our FPL Transmission Division and has been with Irby since 2019. When asked what motivates him the most about his job, Drew says, “The challenge motivates me. Taking something that seems impossible, putting a plan in action, and watching it all come together is amazing.”Click below to read more about Drew in his employee spotlight:content.app-us1.com/WpZJ1/2025/04/10/b78505e2-bf25-4231-8a1a-d4d071e56888.pdf#IrbyConstruction #AbsolutePerformance #WeAreQuanta #EmployeeSpotlight Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

6 days ago

Irby Construction Company
It’s Day 4 of Construction Safety Week, and today we’re highlighting the power of engagement and empowerment regarding safety. Irby team members are encouraged to speak up, take initiative, and grow their skills. Open communication, shared decision-making, recognition, training, and trust work together to create a culture where everyone feels valued and safety becomes a collective responsibility.Learn more at: www.constructionsafetyweek.com/plan-for-safety-week/resources/#IrbyConstruction #AbsolutePerformance #WeAreQuanta #ConstructionSafetyWeek #CSW Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

1 week ago

Irby Construction Company
Day 3 of Construction Safety Week is all about owning your role in safety. When every team member takes responsibility, we stay aligned and move toward a common goal: getting everyone home safe. Communication, education, leadership, field presence, preparation, empowerment, and mentorship are the building blocks of a strong safety culture—one where risks are reduced, and safety is second nature.www.constructionsafetyweek.com/plan-for-safety-week/resources/#IrbyConstruction #AbsolutePerformance #wearequanta #ConstructionSafetyWeek #CSW Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

1 week ago

Irby Construction Company
Day 2 of Construction Safety Week focuses on identifying High Energy hazards. A High Energy hazard is a workplace situation with enough energy potential that contacting it could likely result in a serious injury or even death. These hazards are often referred to as "stuff that kills you (STKY) hazards.Eliminating high-energy hazards demands constant vigilance and a shared commitment to identifying potential risks before work begins. By recognizing these hazards and putting proper controls in place, we can protect the safety and well-being of every Irby team member.www.constructionsafetyweek.com/plan-for-safety-week/resources/#IrbyConstruction #AbsolutePerformance #WeAreQuanta #ConstructionSafetyWeek #CSW Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

1 week ago

Irby Construction Company
Construction Safety Week is May 5–9, 2025. 🚧At Irby Construction, safety drives every decision we make. It’s the foundation of our work—and our daily commitment to each other and the communities we serve. All week long, we’ll be sharing safety insights and resources from CSW. Today’s safety takeaway is to plan with precision. Safe work doesn’t happen by accident. It starts with intentional, detailed planning. Identifying hazards early, preparing the right tools, and coordinating with your crew helps prevent injuries and keep the job running smoothly. The more precise the plan, the safer the outcome.Stay tuned and stay safe. Learn more below: www.constructionsafetyweek.com/plan-for-safety-week/resources/#IrbyConstruction #AbsolutePerformance #WeAreQuanta #ConstructionSafetyWeek #CSW Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company is a wholly-owned subsidiary of Quanta Services, Inc. (NYSE: PWR).