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About NimbusOS
We're building the infrastructure layer that lets cold email agencies scale without the operational headaches
Our Mission
NimbusOS exists because outbound agencies shouldn't need a full-time ops person just to manage domains, DNS records, and inbox provisioning. We automate the cold email infrastructure layer, so agencies can focus on running campaigns and growing their clients' pipelines.
We ran agencies ourselves. NimbusOS is the tool we wished existed when we were manually managing 200+ domains across 15 clients on Instantly and Smartlead.
88,917
Contacts in the Pipeline
121
Inboxes Managed
<4min
Avg Client Onboarding