Spark Energy is seen as one of Nicor Gas's top competitors. Spark Energy was founded in Houston, Texas} in 1999. Spark Energy is in the Electric, Water & Gas Utilities industry. Compared to Nicor Gas, Spark Energy generates $1B less revenue.
AEP Energy is Nicor Gas's #2 competitor. AEP Energy was founded in 2002, and its headquarters is in Chicago, Illinois. AEP Energy competes in the Electric, Water & Gas Utilities industry. AEP Energy has 1,650 fewer employees than Nicor Gas.
Ambit Energy Holdings, LLC is Nicor Gas's #3 rival. Ambit Energy Holdings, LLC is headquartered in Plano, Texas, and was founded in 2006. Like Nicor Gas, Ambit Energy Holdings, LLC also competes in the Energy & Utilities industry. Ambit Energy Holdings, LLC generates 86% the revenue of Nicor Gas.