If you're here looking up Alliant Energy 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. Alliant Energy also goes by or is associated with the names Alliant Energy Corporation, Alliant Energy. They are considered to be part of the following sectors and industries: utilities. Alliant Energy is associated with terms like electricity, natural gas, public, utilities, electrical, oil & gas, e-commerce, enterprise, b2b by their customers and industry analysts. They are similar to companies like Duquesne Light, Gulf Power, Alagasco, ENMAX, NorthWestern Energy. They employ 4,262 people according to customers in the know.