Customer.io logo
Data/Analytics
Enterprise SaaS

Customer.io

Personalized customer engagement platform

CORE INFO

$94M
Total Funding
Series A
Round
2012
Founded
201-500
Team Size
Portland, Oregon, USA
Headquarters

Customer.io is a platform that helps businesses create personalized customer journeys through various channels like email, SMS, and push notifications, enhancing engagement and conversion rates for over 7,400 clients, including Notion and Codecademy.

  • Customer.io raised $29.9 million in a Series A funding round led by Spectrum Equity in March 2022.globenewswire.com
  • The company achieved an annual recurring revenue of $100 million as of September 2025.customer.io
  • Customer.io was ranked No. 2,283 on the 2025 Inc. 5000 list, with a 188% three-year growth rate.inc.com

WHY WE WOULD WORK AT CUSTOMER.IO

People-First Culture

Enjoy a supportive environment with unlimited PTO, paid medical insurance, and a focus on personal relationships, ensuring a healthy work-life balance.

Innovative Technology

Work with cutting-edge tools in customer engagement, leveraging real-time data to create personalized journeys for over 7,400 businesses, including Notion and Codecademy.

Competitive Compensation

Benefit from a strong financial foundation with $100 million in annual recurring revenue, ensuring stability and growth opportunities for employees.

Recognized Growth

Join a company ranked No. 2,283 on the 2025 Inc. 5000 list, showcasing a remarkable 188% growth rate and a commitment to excellence.

Global Impact

Contribute to a mission that enhances customer engagement across diverse industries like SaaS, EdTech, and FinTech, making a meaningful difference worldwide.

Continuous Learning

Access a dedicated learning development budget to foster personal and professional growth, ensuring you stay ahead in the fast-evolving tech landscape.

MARKET AND TRACTION

KEY METRICS

✦ KEY METRIC
  • Annual Recurring Revenue (ARR) reached $100 million as of September 2025.

  • Customer.io serves over 7,400 businesses, showcasing its broad market reach.

  • The company has achieved a year-over-year growth rate of 37% as of 2025.
  • NOTABLE CUSTOMERS

  • Customer.io has a diverse client base, including notable companies such as Notion, Segment, and Codecademy.

  • The platform supports over 8,000 companies, indicating strong market adoption across various industries.
  • GROWTH TACTICS

  • Customer.io leverages real-time, first-party data to automate and personalize customer messaging, enhancing engagement.

  • The company emphasizes a people-first culture, which aids in employee retention and satisfaction, contributing to its growth.
  • TOTAL ADDRESSABLE MARKET

  • Customer.io operates in sectors that require advanced customer engagement strategies, including SaaS, EdTech, FinTech, and healthcare.

  • The increasing demand for personalized customer interactions positions Customer.io favorably in a growing market.
  • COMPETITIVE ADVANTAGE

  • Customer.io specializes in behavioral messaging, utilizing real-time user behavior events to trigger communications across multiple channels.

  • The platform's ability to integrate various messaging channels, such as email, SMS, and push notifications, provides a comprehensive solution for businesses looking to enhance customer engagement.
  • PRODUCT AND TECH

    Customer Engagement Platform

    Customer.io's core offering enables organizations to create personalized customer journeys across multiple channels, enhancing engagement and conversion rates.

    Behavioral Messaging

    Utilizing real-time user behavior events, Customer.io triggers tailored messages through various channels, including email, SMS, and push notifications, to optimize customer interactions.

    Multi-Channel Communication

    The platform supports diverse messaging channels such as in-app messages, webhooks, and SMS, allowing businesses to reach customers where they are most active.

    Real-Time Data Utilization

    By leveraging first-party data in real-time, Customer.io empowers businesses to automate and customize their messaging strategies, leading to improved customer experiences.

    Automation Tools

    Customer.io provides automation capabilities that allow businesses to streamline their messaging processes, ensuring timely and relevant communication with customers.

    COMPANY CULTURE

    Values

  • People-first focus

  • Inclusivity and diversity

  • Innovation and creativity

  • Personal relationships with employees and families

  • Community partnership and global impact
  • Benefits

  • Paid medical insurance

  • Unlimited paid time off (PTO)

  • Monthly phone and internet reimbursement

  • Learning and development budget

  • In-person retreats and activities
  • Operating Principles

  • Bias-free hiring practices

  • Celebrating accomplishments inside and outside the office

  • Fostering a supportive work environment

  • Encouraging open communication and feedback

  • Commitment to employee well-being
  • Learning & Growth

  • Opportunities for professional development

  • Access to training resources

  • Support for attending industry conferences

  • Encouragement of knowledge sharing among teams

  • Mentorship programs for career advancement
  • Team Cadence

  • Regular team meetings to align on goals

  • Monthly all-hands meetings for company updates

  • Quarterly performance reviews

  • Flexible work hours to accommodate personal needs

  • Emphasis on collaboration across departments
  • COMPENSATION SNAPSHOT

    C
    Comp score vs cohort
    vs. Data/Analytics · Series A · US
    Based on publicly available compensation ranges from job postings; exact compensation may vary.
    Engineering IC4n = 7
    $150K – $200Kmedian $175K
    Aggregate
    G&An = 4
    $171K – $213Kmedian $192K
    Aggregate
    US-only in v1 · only categories with n > 2 shown · in-person / hybrid / remote treated separately where n ≥ 3