When traveling on the road to recovery, the nation’s largest electrical contractors have been challenged by suddenly cancelled projects, meager margins, and a severe labor shortage. Last year, however, the construction market finally shifted into a positive direction. Case in point: The companies on this year’s listing reported combined revenues of $15.7 billion in 2013, compared to $14 billion in 2012 and $12.8 billion in 2011.

View the 2014 Top 50 Electrical Contractors Table.