StackCensus
Sign in

Marketing

Companies using Customer.io

991

Confirmed companies

Last verified 2026-08-01.

View full listDownload full CSV

Download these 25 rows as CSV to see the format before you buy. Same columns as the full export.

966 more companies use Customer.io

This preview shows the first 25. The full list, CSV export and API access come with the paid plan, with no cap on the number of technologies.

Domains running Customer.io

Confirmed
Domains confirmed to use Customer.io
DomainRankLast verified
anota.aiTop 5K2026-08-01
hvg.huTop 5K2026-08-01
kiwi.comTop 10K2026-08-01
musixmatch.comTop 10K2026-08-01
wakacje.plTop 10K2026-08-01
apollo.ioTop 50K2026-08-01
azurewebsites.netTop 50K2026-08-01
claritycheck.comTop 50K2026-08-01
enhancv.comTop 50K2026-08-01
herokuapp.comTop 50K2026-08-01
hint.appTop 50K2026-08-01
letstranzact.comTop 50K2026-08-01
mastersportal.comTop 50K2026-08-01
moniepoint.comTop 50K2026-08-01
piratinviaggio.itTop 50K2026-08-01
propertyhub.in.thTop 50K2026-08-01
reverselookup.comTop 50K2026-08-01
riverside.comTop 50K2026-08-01
streamlabs.comTop 50K2026-08-01
super.comTop 50K2026-08-01
teamapt.comTop 50K2026-08-01
use.aiTop 50K2026-08-01
vercel.appTop 50K2026-08-01
vio.comTop 50K2026-08-01
welcometothejungle.comTop 50K2026-08-01