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 November 14, 2026.
VCBacked. (2022). Customer.io — Funding & Investors. Retrieved November 14, 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=November 14, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated
Work at Customer.io? Request a listing update