CELEBRATING 75 YEARS IN BUSINESS.
The year 2021 marks a major milestone for Irby Construction. We’re so proud of this milestone accomplishment we’re celebrating all year.
We have made it to this juncture thanks to all the people of Irby. Exceptional tenure, leadership, and daily commitment to safety and our company values are essential ingredients to the Irby success story.
Likewise, we owe gratitude to our clients and partners—many of whom we have worked with frequently over the course of decades. We consider ourselves fortunate to have earned your trust.
Watch our Anniversary Video
LOOKING BACK
We started as pioneers in our industry and that spirit prevails at Irby today.
Our company built the electric grid we’re expanding and upgrading today. We created construction processes that have been adopted as industry standards. And we continue to push boundaries.
This company has built electric power infrastructure all over the United States and abroad. From Alaska to Africa – we became known for our ability to tackle the biggest challenges and develop solutions.
STRONG AT 75
At 75 years old, this company’s experience is storied, and our track record is solid.
Today we are standing on the solid foundation our history provides. But we refuse to rest. It’s not in this company’s DNA.
We’re growing like never before. We’re expanding our scope of services. We’re employing new technology. And we’re continuously raising the bar for safety, training, and productivity.
LOOKING AHEAD
Our industry will continue to change but one thing will always stay the same. Irby’s approach to absolute performance and our family-first culture is forever here. It’s what shapes the experience of working with our team. Count on it.
Miles of line constructed
Projects completed
Employees and growing all the time
% Of our team with 10+ years of tenure
1919
Stuart C. Irby founded Stuart C. Irby Company, which specialized in wholesale electrical supplies and electrical contracting...Read more
1946
Irby Construction Company was chartered as a separate organization headed by Stuart C. Irby, Jr., son of the founder...Read more
1965
Irby Construction Company had successfully constructed projects in 36 states, and by 1966, it had constructed more...Read more
1966
Irby utilized helicopters for the first time to assist in power line construction...Read more
1971
Irby constructed the first 765kV project in the U.S. in 1967, completing the project in 1971.Read more
1975
Irby constructed transmission, distribution, and substation projects in Java, Indonesia...Read more
1977
Irby constructed a 112-mile, 400kV transmission line project in South Africa. This same year, Irby also began 12....Read more
1985
Irby constructed 98 miles of 345kV transmission in the environmentally sensitive...Read more
1986
Irby constructed a 112-mile, 400kV transmission line project in South Africa...Read more
1987
A leader in safety, Irby established a lineman apprenticeship program that received certification from the U.S...Read more
1993
Irby received certification from the U.S. Department of Labor.Read more
1995
Irby completed construction of an EHV transmission line in Belize, Central America.Read more
2000
Irby Construction Company was acquired by Quanta Services, Inc. on July 10, 2000.Read more
2003
Irby Construction Company completed a 192-mile 345kV transmission line for NV Energy...Read more
2006
Irby Construction Company completed an energized transmission project in Chad...Read more
2008
Irby Construction Company was awarded a 5 year transmission line construction and maintenance contract for...Read more
2009
Irby Construction Company constructed a 230-mile 345kV transmission line for...Read more
2011
Quanta Services merged Okay Construction operations into Irby. This same year, Irby Construction Company...Read more
2012
Irby Construction Company moved into our new corporate headquarter in Richland, Mississippi.Read more
2015
Irby Construction completed the 230-mile Central Loop of Maine Power Reliability Program (MPRP)... Read more 
2016
In December of 2015, Quanta Services announced its appointment of Mr. Lee Jones as President of Irby... Read more 
2017
Continuing its tradition of innovation and expansion, Irby launched its outdoor lighting service in 2017... Read more 
2017
June 22, 2017: Irby was recognized at the 2017 Best Places to Work luncheon hosted by the Mississippi Business Journal.Read more
2017
November 10, 2017 Irby opened a new 14,000 sq ft office in Lockhart, Texas. The office serves LCRA ad other clients in central Texas and features 4,000 square feet of office space and 10,000 square feet of warehouse.Read more
2017
December, 2017 Irby Construction expanded its offering by creating an underground construction division.Read more
2018
Irby’s parent company, Quanta Services, acquired Northwest Lineman College. NLC is the electric power industry’s largest educational and training institution.Read more
2019
March 27, 2019 Irby President, Lee Jones, was recognized by the Mississippi Business Journal as one of the state’s Top CEO's for 2019, by the Mississippi Business Journal.Read more
2019
August 5, 2019 Irby Construction acquired Marathon Construction Services, expanding it’s foundation capabilities. Marathon operates as a division of Irby Construction.Read more
2019
October 7, 2019 Legend Foundation Services (“Legend”) was created after the acquisition of several foundation crews. A division of Irby Construction Company, Legend is a 50-employee company based in Broussard, Louisiana with specialized experience and capabilities working on complex projects in foundation construction, caisson installation, pole setting, as well as especially challenging amphibious foundation construction activities.Read more
2021
In December 2021, Irby Construction completed work on-site at Manatee Battery Energy Storage Center (BESS) and substation, which consists of 132 new battery line-ups connected to a new 230/34.5 kV substation. The Florida Power and Light project included the placement of 53,144 individual battery modules on a site that is the size of 3 football fields. At the time of completion, Manatee Battery Energy Storage Center was the world’s largest solar-powered battery. Read more 
2022
Jason Clayton was promoted to President of Irby Construction Company, effective January 31, 2022 Read more Keep in touch on social
Follow our 75th celebration on social media! Get a glimpse into our rich history in the form of some epic vintage photos
CONTACT HR DIRECT:
Contact HR directly by clicking here.
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CONTACT US:
318 Old Highway 49 South
Richland, Mississippi 39218-9449
Phone: 601-709-4729
Email: [email protected]
FACEBOOK FEED:
Irby Construction Company
Introducing Kim Reynolds...![]()
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Irby is proud to shine a spotlight on Kim as part of our Women in Construction Week 2026 series. ![]()
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Kim has served as an Equipment Administrative Assistant at Irby for over five years, and says that "...working on the office side of construction has given me an appreciation for the teamwork and coordination it takes to help bring a project together."![]()
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She truly enjoys being part of a department where no two days are the same, and could not ask for a better team to work with. ![]()
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We feel the same, Kim! So glad to have you on Team Irby. 💙![]()
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#WomeninConstructionWeek #WIC #WIC2026 #IrbyConstruction #AbsolutePerformance #WeAreQuanta Quanta Services, Inc.
Introducing Chrissy Green...![]()
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Chrissy kicked off her career at Irby over 14 years ago as a Field Clerk, eventually working her way up to her current position as Field Office Manager. Chrissy notes that although construction is predominantly a male field, it’s incredible to see more women joining the ranks. "Being part of this change is just another testament to the impact of our work, and it’s empowering to contribute to such change," she says. ![]()
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Her advice? “Regardless of your position, genuine leadership knows no gender; so be authentic, be extraordinary, and aim to be the best woman you can be.”![]()
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We’re proud to have leaders like Chrissy helping move our company and the industry forward. 💙![]()
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#WomeninConstructionWeek #WIC #WIC2026 #IrbyConstruction #AbsolutePerformance #WeAreQuanta Quanta Services, Inc.
Introducing Amber Pinter...![]()
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Amber has been part of Irby Construction for a year and a half, beginning in Distribution before stepping into her current role in Transmission. As an Office Manager and a proud mom of three, she brings both drive and heart to everything she does.![]()
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“I truly value the family atmosphere here,” Amber shares. “It’s a place where you feel supported, appreciated, and encouraged to grow.”![]()
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That sense of support has fueled her growth within the company and her excitement for what’s ahead. Amber is motivated by the opportunity to keep advancing her career while building a strong future for her family. ![]()
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Thanks for sharing, Amber! 💙![]()
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#WomeninConstructionWeek #WIC #WIC2026 #IrbyConstruction #AbsolutePerformance #WeAreQuanta Quanta Services, Inc.
Introducing Gabby Navarro...![]()
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Gabby started her career with Irby Construction right out of high school in 2011, beginning in the field and spending five years learning the trade before moving into the office. Early on, she was the only woman on a 15-person crew, a challenge she turned into motivation. “I saw it as an opportunity to prove myself and grow in the industry.”![]()
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While in the field, Gabby worked primarily on the fleet side but also gained hands-on experience with wire stringing, pole setting, and material receiving. Over time, she earned the crew’s respect and continued pushing herself to learn more.![]()
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“My ‘why’ with Irby is easy: the culture of continuous improvement and strong support system. It’s about more than just the work; it’s about improving lives in the communities we serve,” Gabby says.![]()
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Thirteen years in, and Gabby's just getting started. We are honored to celebrate you this Women in Construction Week! 💙![]()
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#WomeninConstructionWeek #WIC #WIC2026 #IrbyConstruction #AbsolutePerformance #WeAreQuanta Quanta Services, Inc.
Introducing Ana Paula Boothroyd…![]()
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Ana Paula is our first Women in Construction Week 2026 spotlight! She began her journey with Irby Construction in 1996, working under the guidance of former Irby President Bill Korlath. In 2000, she transitioned into the Bidding Department, and after a few twists and turns along the way, she’s happy to be back with the Bidding team, bringing decades of experience with her.![]()
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Over her 29-year career, Ana Paula has worn many hats and gained invaluable insight across the company. Today, she supports the Irby Transmission group by developing proposals and managing Salesforce to strengthen communication and keep teams aligned.![]()
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When reflecting on nearly three decades with Irby, Ana Paula shared, “In my career of 29 years, a lot has changed, except for the sense of family.”![]()
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We’re grateful to have you on Team Irby, Ana Paula. 💙![]()
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#WomeninConstructionWeek #WIC #WIC2026 #IrbyConstruction #AbsolutePerformance #WeAreQuanta Quanta Services, Inc.
Irby Construction Company is proud to celebrate Women in Construction Week 2026! 💙![]()
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We wouldn’t be where we are today without the talent, contributions, leadership, and drive of the women who power our Irby teams across the South and Southeast. ![]()
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Join us during our WIC 2026 social media takeover as we recognize just a few of the women whose impact helps shape Irby Construction and our industry.![]()
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#WomeninConstructionWeek #WIC #WIC2026 #IrbyConstruction #AbsolutePerformance #WeAreQuanta Quanta Services, Inc.
Irby Construction Company is a wholly-owned subsidiary of Quanta Services, Inc. (NYSE: PWR).