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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CONTACT US

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HIRE IRBY

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JOIN THE IRBY TEAM

Learn about current openings or contact us by clicking here. 

CAREERS

EMPLOYEE INFO

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REQUEST INFO

CONTACT HR DIRECT:

Contact HR directly by clicking here.

FOLLOW US:

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

5 days ago

Irby Construction Company
Sunset Over Substation on Job 3326! ☀️Our Irby MS crews are working hard on 36 miles of rebuild in Abilene, TX!#IrbyConstruction #AbsolutePerformance #wearequanta #texas Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

6 days ago

Irby Construction Company
Celebrating St. Patrick's Day in style! 🍀Irby corporate is decked out in green, spreading luck and good fortune throughout the company.#stpatrick'sDay #IrbyConstruction #wearequanta Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

1 week ago

Irby Construction Company
Safety is a team effort. Looking out for each other keeps us strong, prevents any and all incidents, and helps everyone get home safe. The Capacity Model™ gives us the tools to build resilience and learn from real experiences—because at Irby Construction, safety is always a shared responsibility. 👷‍♂️🔧#IrbyConstruction #AbsolutePerformance #wearequanta #thecapacitymodel #safety Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

2 weeks ago

Irby Construction Company
Get to know… Ryan Raftery!Ryan is a Customer Outreach Specialist in the Southeast region and has been with Irby for four years. CLICK HERE to learn more about Ryan, including his favorite Irby project and hobbies outside of work.content.app-us1.com/WpZJ1/2025/02/13/65acd8c6-6fb4-48b4-a3ea-66dd3925624b.pdf#IrbyConstruction #AbsolutePerformance #wearequanta #EmployeeSpotlight Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

2 weeks ago

Irby Construction Company
Big shout out to Irby Apprentice Lineman, Miles Wollen, February Irby Pics Contest winner! Miles snapped this awesome shot early in the morning hours in Mecca, California on Job number 2710. 🌅Take a selfie on site! Show us equipment at work. You could even send us a photo of your favorite four-legged friend in Irby gear. Irby employees, be sure to share any Irby-related photos with [email protected], and you could win a $150 Amazon Gift Card!#IrbyConstruction #AbsolutePerformance #wearequanta #irbypicscontest Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

2 weeks ago

Irby Construction Company
Introducing Tamara Quintana...Tamara has been working in the field for six years, five of those being at Irby Construction. During that time, she's had the opportunity to work her way up from apprentice to foreman and now to her current role as a unit writer. In Tamera's own words, "....what I love the most about working at Irby is being part of a team that values collaboration, innovation, safety, and a shared commitment to Absolute Performance."As a woman in construction, especially in the power delivery industry, Tamara is passionate about breaking down barriers and showing that there’s a place for everyone in this field. She's had the privilege of working alongside incredible linemen on impactful projects like FPL’s Underground Lateral Hardening, the Parrish Battery Plant, Lockheed Martin URD Feeder Relocation, and numerous emergency power restoration efforts. Tamara says that each project has not only been a valuable learning experience but also an opportunity to collaborate with talented professionals in the field. "For me, it’s not just about building powerlines, it’s about building relationships, continuing to learn and grow, and proving that women have unlimited potential in construction."#IrbyConstruction #AbsolutePerformance #WeAreQuanta #WomeninConstruction Quanta Services, Inc. ... See MoreSee Less

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