NATS is a CNCF project and no one company has exclusive privileged rights to integrations in GitHub for the various nats-io repositories.
At the same time, many of the NATS Maintainers are employed by one company. We want to be fair in how we manage the integrations.
Any NATS Maintainer can approve new GitHub integrations for any repositories under their purview.
Loosely, any organization which is contributing constructively towards NATS development can get a webhook added. File an Issue describing the webhook and be ready to convey any credentials out of band.