Customer Io

Cloud based platform offering software for email marketing

placeNew York City, New York, United States calendar_todayFounded 2012 groups48 employees language customer.io

Registered entities

Reputation

Customer rating 2.6 / 5 across 22 reviews.

Web presence

Audience by country — top 5 markets by share of visits.

CountryShare
United States22.2%
Germany16.2%
Ukraine9.9%
India5.5%
United Kingdom4.8%

Social engagement

Social engagement: 44K social following, 9 posts in the last 12 months — below the industry typical range.

Investor mix

15 investors on record; lead investors include Oregon Venture Fund, Spectrum Equity, FJ Labs.

Investor typeCountShare
Venture capital1493%
Private equity17%

Share of voice

Share of voice in United States: 1.9% of web traffic across its competitive set; worldwide: 4.8%.

Hiring activity

Hires periodically

40 roles tracked across 4 of the last 12 months

9 Feb 2026 · Marketing Operations Specialist · Augusta

1 Feb 2026 · Senior Product Operations Manager · Birmingham

9 Jan 2026 · Senior Partner Marketing Manager · Boston

8 Dec 2025 · Mid-Market Account Executive · Cape Coral

Based on job postings tracked across public sources.

Recent activity

1 Jul 2026
Recognition
30 Jun 2026
Partnership
Hyppo
29 Jun 2026
Event
Lifecycle Oasis
Coming soon