NATS.io is a connective technology for distributed systems and is a perfect fit to connect devices, edge, cloud or hybrid deployments. True multi-tenancy makes NATS ideal for SaaS and self-healing and scaling technology allows for topology changes anytime with zero downtime.
NATS was accepted to CNCF on March 15, 2018 and is at the Incubating project maturity level.
NATS case studies

Finleap Connect
5 Months Implemented mTLS across all services in clusters for code to comply with European PSD2
June 7, 2022
Operating multiple high-density bare-metal clusters in a highly regulated industry
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Zerodha
50% Reduction in compute costs
May 22, 2020
How cloud native is driving Zerodha, the world’s largest retail stock investment platform
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Better together: A Kubernetes and Wasm case study
November 17, 2022
NATS: You Need it Now!
October 7, 2022