If you're here looking up Nicor customer care, you probably already know who they are. But it helps to get an idea of how big they are and what their support operation looks like if you are a customer. Nicor also goes by or is associated with the names Nicor Gas. They are considered to be part of the following sectors and industries: gas, utilities, Energy, Energy Equipment & Services, Gas Utilities, Oil & Gas. Nicor is associated with terms like subsidiary, private, b2c, oil & gas by their customers and industry analysts. They employ less than 50 people according to customers in the know.