51ÂÒÂ×»»ÆÞ

Celebrating our history. building the future.

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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 51ÂÒÂ×»»ÆÞ 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 COMPANYÌýbuilds 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.ÌýIrby 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.Ìý

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 51ÂÒÂ×»»ÆÞ 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.

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FEATURED PROJECTS

Hurricanes Helene & Milton Emergency Response

Hurricanes Helene & Milton Emergency Response

September 4, 2025
Destin Resiliency and Rebuild Projects

Destin Resiliency and Rebuild Projects

September 4, 2025
SMT Houston IV BESS Project

SMT Houston IV BESS Project

September 4, 2025
Duke Energy – Mosaic APW AF Line

Duke Energy – Mosaic APW AF Line

September 3, 2025
Jefferson Davis Electric Cooperative 230KV T-Line System Loop Upgrade

Jefferson Davis Electric Cooperative 230KV T-Line System Loop Upgrade

September 3, 2025
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

WATTS IN THE NEWS

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CONTACT US

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EMPLOYEE INFO

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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 51ÂÒÂ×»»ÆÞ Company

5 days ago

Powerlines doing their thing-quietly keeping everything running while we soak in the views on job 3201 âš¡ï¸ðŸŒ„ ... See MoreSee Less

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6 days ago

Meet Shaun Coleman, Project Manager on Irby’s BESS Houston V Project. Since joining Irby over five months ago, he has been driven by a passion for problem-solving and building strong relationships with both Irby employees and clients.Want to know where he stands on the great pineapple-on-pizza debate? Check out Shaun’s full Employee Spotlight below to learn more: #WeAreQuanta #EmployeeSpotlight ... See MoreSee Less

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1 week ago

Irby 51ÂÒÂ×»»ÆÞ Company is hiring a Substation Estimator in Lockhart, TX! 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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1 week ago

Irby 51ÂÒÂ×»»ÆÞ Company is hiring a Substation Project Manager in Lockhart, TX! 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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1 week ago

Congrats to Tyler Dixon, Irby Lineman Apprentice, for capturing this stunning bluebird photo from Job 3577 and winning the August Irby Pics Contest. ... See MoreSee Less

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2 weeks ago

Even in the aftermath of the catastrophic July 4, 2025, floods, the spirit of the Texas Hill Country shines through. We’re proud to have contributed, even in a small way, on the road to recovery.On July 8, a six-person crew from Legend Foundation Services, an Irby 51ÂÒÂ×»»ÆÞ Company, led by Dustin Vice, traveled nearly 600 miles from Geismar, Louisiana, to lend a helping hand. Their mission: bring southern comfort food and much-needed relief to the communities of Kerrville, Comfort, and Center Point, Texas.We are grateful to Dustin Vice, Roland Cortez, Jada Duplessis, Mike Smith, Daniel Billiot, Corey Ramey, and Cornell Slaughter for showing up with compassion, strength, and grit during the Texas Hill Country's time of need.Learn more on the Irby website about how our crews came together to support Central Texas: www.irbyconstruction.com/answering-the-call-legend-foundation-services-offers-help-in-texas-hill-... #TexasHillCountry #WeAreQuanta ... See MoreSee Less

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Irby 51ÂÒÂ×»»ÆÞ Company is a wholly-owned subsidiary of . (NYSE: PWR).