If you're here looking up Office 365 Support 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. Office 365 Support also goes by or is associated with the names Kelsey Epps. Office 365 Support is associated with terms like software as a service contract, private, b2c by their customers and industry analysts. They employ 125 people according to customers in the know.