WorkdayWorkday provides human capital management, financial management and Adaptive Planning applications; buyers should evaluate each scope separately.ERP & Business OperationsSoftwareCommercial
WorkOSWorkOS provides APIs for enterprise-readiness features, SSO, SCIM directory sync, audit logs and RBAC, that SaaS companies embed to sell into large enterprise customers, with a free tier up to 1M monthly active users via AuthKit.Identity & Access ManagementSoftwareCommercial
ZeroTierZeroTier creates encrypted, software-defined virtual networks that let devices in different locations join the same virtual LAN, with a free tier for small networks and paid plans for larger ones.Network SecuritySelf-hostedOpen source
ZitadelZitadel is an open-source identity and access management platform with passwordless auth, multi-tenancy, and custom workflows. It's free up to 100 daily active users, with cloud Pro plans from $100/month and a self-hosted deployment option.Identity & Access ManagementSelf-hostedOpen source
ZscalerZscaler offers secure internet access and private-application access services with different traffic and policy paths.Cloud SecuritySoftwareCommercial