# Reseller email account

*Service Provider*. Email account created after a company entered into a partnership with Twilio.

To resell Twilio SendGrid services, a company enters into a formal Reseller Partnership with Twilio. The reseller integrates all billing and usage into Twilio. The company resells Twilio SendGrid under their product.

To manage their customers, a company uses the [Reseller API][].

[Reseller API]: /docs/sendgrid/api-reference/how-to-use-the-sendgrid-v3-api