HISTORY
WE’RE PROUD OF OUR RICH HISTORY AT IRBY
It’s hard in the business of building electric power infrastructure to have a history deeper than Irby Construction Company. We’ve been building electric power transmission lines as long as anyone. In fact, Irby crews built much of the existing electric grid and broke new ground on many industry firsts. The tradition continues today as we work to expand the grid’s capacity and apply new technologies for the future. Click on the timeline below to explore our proud past year by year.
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
1967
Irby constructed the first 765kV project in the U.S. in 1967. The company ultimately built over 90% of...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
1996
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
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318 Old Highway 49 South
Richland, Mississippi 39218-9449
Phone: 601-709-4729
Email: info@irbyconstruction.com
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Richland Community Center
We had a great time at the Richland High School Career Fair today! We are proud to be a part of the Richland community and it was great seeing so many bright futures through these kids. #irbyconstruction #quantaservices #wearequanta #careerfair #careers #powerlines #safetyalways @ Richland Community Center
Happy Veteran's Day! Today we recognize all of those who have served or are serving in the United States Armed Forces. You make our country proud each and everyday! #irbyconstruction #wearequanta #quantaservices #veteransday #America #honor #redwhiteandblue #military
Irby Construction Company
318 Old Hwy 49 S
Richland, MS 39218
Irby Construction Company is a wholly-owned subsidiary of Quanta Services, Inc. (NYSE: PWR).