If you're here looking up NationStar Mortgage 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. NationStar Mortgage also goes by or is associated with the names Nation Star, Nationstar, Nation Star Mortgage LLC, Nationstar Mortgage. They are considered to be part of the following sectors and industries: mortgage, lending, Financials, Diversified Financial Services, Financial Services. NationStar Mortgage is associated with terms like public, b2b, b2c, financial services by their customers and industry analysts. Their competition, in the eyes of customers, are companies like Wells Fargo, Bank of America, Quicken Loans. They employ 4,167 people according to customers in the know.