If you're here looking up Optimum 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. Optimum also goes by or is associated with the names Cablevision, Cable Vision, Neptune Holding US Corp., Optimum. They are considered to be part of the following sectors and industries: Telecommunication Services, Diversified Telecommunication Services, Integrated Telecommunication Services. Optimum is associated with terms like public, isp, b2c, networking by their customers and industry analysts. Their competition, in the eyes of customers, are companies like Comcast, Time Warner, DirecTV. They employ 92,000 people according to customers in the know.