Customer.io
Closes at Series BTerms read on 9 Aug 2026
Up to 12 months free, 30,000 profiles
Read this first
The free period is up to twelve months and the length depends on your application, so the headline is a ceiling. Thirty thousand profiles counts objects as well as contacts, which is easy to underestimate if you model accounts as objects.
How to claim it, in 4 steps
Tick them off as you go. Saved in this browser.
What the terms actually say
Up to twelve months free of the Startup plan, which carries everything in Essentials plus extra user profiles, covering thirty thousand profiles across people and objects. Journeys, data pipelines, messaging and their AI agent are all included. Three requirements and one of them is unusual enough to quote: contact lists must be obtained through standard methods and not purchased. That is a rule about how you built your list rather than about your company, and it is the sort of clause that gets enforced after you have migrated. Under ten million raised, and never a Customer.io customer before.
Who can claim it, in Customer.io's words
Under ten million dollars raised in total, never a Customer.io customer, and contact lists obtained through standard methods rather than purchased. The twelve months are stated as up to, based on application eligibility.
What you get without this
Customer.io's paid Essentials plan at published pricing per profile, since there is no permanent free tier.
We list a perk because it beats walking up to the vendor unannounced. If it ever stops doing that, it comes off the index.
4 more perks readable in full before we ask for an email address.