Customer.io enables users to send newsletters to selected segments of customers using their website data.
Customer.io's investors include BoxGroup, Techstars, FJ Labs, Portland Seed Fund, Spectrum Equity.
Customer.io is headquartered in Portland, United States.
Customer.io enables users to send newsletters to selected segments of customers using their website data.
Customer.io is at the Series A stage.
Free to use in articles, research, and reference works. Stable URL — will not change. Data on this page last updated .
"Customer.io — Funding & Investors." VCBacked, March 8, 2022, https://www.vcbacked.co/company/customerio. Accessed August 15, 2026.
VCBacked. (2022). Customer.io — Funding & Investors. Retrieved August 15, 2026, from https://www.vcbacked.co/company/customerio
{{cite web |title=Customer.io — Funding & Investors |url=https://www.vcbacked.co/company/customerio |website=VCBacked |access-date=August 15, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated