dmarcian - Safeguard your email from abuse
Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
Proofpoint - Proofpoint provides cloud-based email security, e-discovery and compliance solutions for companies to protect sensitive business data.
Google Cloud Platform Security Overview - Cloud Workload Protection Platforms
EasyDMARC - Cloud Native DMARC
Nutanix Beam - Nutanix Beam is a multi-cloud optimization service