HomeAbout QuantaHistory


Quanta Services has a rich history, spanning hundreds of years across our various operating companies.

We proudly continue to grow our heritage, collaborating with our customers to always get better and evolve forward.

Since 1997 when founder John Colson brought together four original companies – PAR, Potelco, Union Power and Trans Tech – Quanta has acquired more than 200 companies. We purposefully retain the unique, de-centralized model that has worked since the beginning.

Through acquisition of companies with long, successful track records, we have expanded our combined heritage to span hundreds of years. That experience, combined with our long-term customer relationships, forms the backbone of who we are and who we will continue to be, supporting and growing with our customers.



Quanta Services is founded with PAR, Potelco, Union Power and Trans Tech.


Initial public offering under the ticker symbol PWR on the New York Stock Exchange.


Revenues exceed $1 Billion.


Quanta hosts the inaugural Utility Perspectives.


Quanta added to the S&P 500.


Founder and CEO John Colson retires.


Quanta named to the Fortune 500.


Quanta Services named #1 Specialty Contractor, #1 Electrical Contractor and #1 Utilities Contractor by ENR Magazine.


Earl C. “Duke” Austin, Jr., named CEO and COO.


Quanta Services celebrates 20-year listing anniversary on New York Stock Exchange and hits the $10 billion revenue mark.

Back to Top