If you're here looking up Duke Energy (IN) 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. Duke Energy (IN) also goes by or is associated with the names Duke Energy Indiana. They are considered to be part of the following sectors and industries: energy. Duke Energy (IN) is associated with terms like electricity generation, transmission and distribution, natural gas, public by their customers and industry analysts. Their competition, in the eyes of customers, are companies like Exelon, Scana, American Electric Power. They employ 29,000 people according to customers in the know.