Since its inception in 1946, Irby Construction Company, a Quanta operating company, has seen its business change in countless ways. Time, technology, equipment and experience have transformed the way we work. As Irby celebrates 75 years in business, we celebrate all these cultural threads that together weave an incredible story. The people of Irby have always been at the heart of what we do. Dedication and solid values are what this company was founded upon. They are what continues to drive our business. And they are present in most every story we have to tell. Irby has built, and successfully preserved, its company culture for 75 years. At the end of the day, this culture and the people that live by it, are what separates our story from that of any other company in our business.