Our History

NPL Founded

NPL was founded in Gonvick, Minnesota as Northern Gas Line Constructors. Nearly fifty years later we’re still serving our very first customer.


Northern Pipeline

The company changes its name to Northern Pipeline Construction Co. and moves its headquarters to Bemidji, Minnesota.


Minneapolis Move

NPL makes its next move to Minneapolis – St. Paul reflecting its regional growth.


Phoenix Move

With a focus on national growth, NPL relocates its corporate headquarters to Phoenix, Arizona.


Southwest Gas

NPL becomes a wholly-owned subsidiary of Southwest Gas Corporation, a publicly traded company.


Ontario, California

NPL brings its experience to the large California market, opening its first office in Ontario.


Traffic Control

NPL broadens its scope of offerings by establishing NBC to better serve traffic control requirements at numerous projects across the nation.


Expansion of Services

NPL sees an opportunity to acquire key assets from an Arizona-based pipeline company to serve the southwestern residential homebuilding market, providing wet and dry utility installations and specializing in heavy duty rock trenching.


Strategic Growth

A landmark year in the history of the company, NPL acquires Canadian gas utility construction leader, the Link-Line Group of Companies.


A Brand New Era for NPL

NPL launches a new brand identity reflecting nearly 50 years of thinking ahead, emphasizing an exceptional record of safety and quality, and our long-established reputation for leadership, expertise and innovation.


Five Amazing Decades

NPL celebrates 50 years of service and is well-positioned to continue its legacy of growth and diversification with a focus on sustainability for the next 50 years. Read our full story here.