AppVeyor is a continuous integration and delivery service that builds, tests and deploys software on Windows, Linux and macOS. Its features include support for several source control hosts, build configuration in YAML or through the user interface, and an isolated, clean build environment for each build. It is offered as a hosted cloud service, and an enterprise edition can be installed on customers' own premises.
AppVeyor Systems Inc. is based in Vancouver, British Columbia, Canada, and describes itself as a privately held, self-funded company founded in 2011. As a Canadian provider, it is not established in the EU. The website does not say where cloud builds or customer data are stored. The privacy policy names only payment and email providers such as Stripe and Mailgun, and it contains no reference to the GDPR or a data processing agreement. A European organisation that wants to keep control of build data can evaluate the self-hosted enterprise edition or ask the vendor for hosting locations in writing.