If you're here looking up DTE 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. DTE Energy also goes by or is associated with the names DTE Energy Co., DTE Energy. They are considered to be part of the following sectors and industries: electric, gas, utilities, Electric Utilities, Energy. DTE Energy is associated with terms like public, b2b, energy & utilities by their customers and industry analysts. Their competition, in the eyes of customers, are companies like Dominion, Eversource, Excel. They employ 10,262 people according to customers in the know.