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...
1946
Irby Construction Company was chartered as a separate organization headed by Stuart C. Irby, Jr., son of the founder... 
1965
Irby Construction Company had successfully constructed projects in 36 states, and by 1966, it had constructed more... 
1966
Irby utilized helicopters for the first time to assist in power line construction... 
1967
Irby constructed the first 765kV project in the U.S. in 1967. The company ultimately built over 90% of... 
1975
Irby constructed transmission, distribution, and substation projects in Java, Indonesia... 
1977
Irby constructed a 112-mile, 400kV transmission line project in South Africa. This same year, Irby also began 12.... 
1985
Irby constructed 98 miles of 345kV transmission in the environmentally sensitive... 
1986
Irby constructed a 112-mile, 400kV transmission line project in South Africa... 
1987
A leader in safety, Irby established a lineman apprenticeship program that received certification from the U.S... 
1993
Irby received certification from the U.S. Department of Labor. 
1996
Irby completed construction of an EHV transmission line in Belize, Central America. 
2000
Irby Construction Company was acquired by Quanta Services, Inc. on July 10, 2000. 
2003
Irby Construction Company completed a 192-mile 345kV transmission line for NV Energy... 
2006
Irby Construction Company completed an energized transmission project in Chad... 
2008
Irby Construction Company was awarded a 5 year transmission line construction and maintenance contract for... 
2009
Irby Construction Company constructed a 230-mile 345kV transmission line for... 
2011
Quanta Services merged Okay Construction operations into Irby. This same year, Irby Construction Company... 
2012
Irby Construction Company moved into our new corporate headquarter in Richland, Mississippi. 
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 CONTACT HR DIRECT:
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CONTACT US:
318 Old Highway 49 South
Richland, Mississippi 39218-9449
Phone: 601-709-4729
Email: info@irbyconst.com
FACEBOOK FEED:
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).