reliability
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Temporal Technologies
Temporal Technologies builds a durable execution platform that lets developers write reliable, long-running applications as if failures never happen. Born from the open-source Temporal engine created by ex-Uber and AWS engineers, it automatically persists application state, retries failed steps, and resumes workflows after crashes. Offered as open source and as the managed Temporal Cloud, it is used by more than 3,000 paying customers including Netflix, Snap, Stripe, and Nvidia, and is increasingly the backbone for reliable, stateful AI agents.
Inngest
Inngest is a durable execution platform that gives developers reliable background jobs, workflows, and AI-agent orchestration without managing queues or infrastructure. Founded in 2021 by Tony Holdstock-Brown and Dan Farrelly, the San Francisco company combines event streams, queues, and durable step functions into SDKs for TypeScript, Python, and Go, plus AgentKit for multi-agent systems. It has raised roughly $30 million, most recently a $21M Series A led by Altimeter in 2025, and processes over 100 million executions a day for teams including SoundCloud, Resend, and Replit.