Quick answer
When was Customer.io launched?
Answer
About Customer.io
Customer.io launched in 2012.
Customer.io launched in 2012, approximately 14 years ago. The product is currently active in the Marketing category on Startup Spotlight.
Source
This answer is drawn from the Customer.io listing on Startup Spotlight, last updated May 25, 2026. For the full profile, see the Customer.io listing.
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