Fly Application Deployment Platform

Founded in 2017 and headquartered in Chicago, this application deployment platform runs any code in hardware-virtualized sandboxes across 18 global regions from Sydney to Sao Paulo, delivering sub-100-millisecond response times worldwide. The core compute primitive is Fly Machines, KVM-isolated containers that launch in under a second, scale to tens of thousands of instances, and bill per second of actual CPU and memory consumption. The platform runs on bare metal servers with a memory-safe Rust and Go stack, providing SOC 2 Type 2 attestation, single sign-on, guaranteed support response times, and CI/CD integration. A managed PostgreSQL service with automatic backups and point-in-time recovery supports clustered databases including CockroachDB and globally-distributed Postgres. The Sprite sandbox system gives AI agents their own dedicated VM with private filesystem, networking, and CPU resources, with checkpoint and restore capabilities enabling ephemeral workers or persistent agent brains. Deployments support zero-downtime releases with automatic health checks, private networking between applications, granular request routing, and autoscaling based on traffic patterns. Framework support includes Rails, Phoenix, Django, Node.js, Laravel, .NET, SvelteKit, and Next.js with auto-generated Dockerfiles, and customers include Supabase, Builder.io, Mercor, Cogram, and Imbue running production AI workloads.