Customer.io: The $400M HubSpot of Product-Led Growth

Customer.io’s dev focus makes Twilio both a potential competitor and acquirer

Customer.io is mainly focused on serving SMBs and startups

With less than $4M raised and $20M ARR, Customer.io has a 5x ARR/funding ratio

It took Customer.io 10 months to get from $50K to $100K MRR

After launching an upgraded pricing tier in early 2018, Premium now brings in 44% of revenue

Customer.io’s 131% net dollar retention is comparable to Front (137%) and in the top quartile of IPO’ing companies

Customer.io was at $1.67M of MRR from 2,100 monthly paying customers as of March.

Setting up Customer.io requires significant upfront and ongoing investments of developer time

A growth challenge for the company is that marketing and growth teams can become less technical with growth