JetStack is a technology company specializing in cloud-native computing, particularly focused on Kubernetes and its ecosystem. Founded in 2015, JetStack provides expert consultancy, training, and open-source tooling to help organizations effectively manage and deploy Kubernetes workloads. One of their key products is "cert-manager," an open-source tool designed to automate the management and issuance of TLS certificates in Kubernetes. JetStack\'s services are aimed at enhancing the security, reliability, and efficiency of cloud-native applications.