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Mailchimp among Y Combinator companies

Mailchimp was detected on 48 of 5,386 crawled Y Combinator company websites, a share of 0.9%.

5,386 of 6,133 Y Combinator domains returned a usable record and form the denominator. 5,242 were counted from a rendered homepage crawl on 4 September 2026, 144 from a plain fetch only, and 747 returned no usable record. Company list: Y Combinator company directory. <5 means fewer than 5 crawled domains in that group. Rank 3 of the 5 CRM and Marketing Automation tools published for this group.

Software used by Y Combinator companies · CRM and Marketing Automation across all groups · Mailchimp across every group and the wider sample

Mailchimp runs on these Y Combinator companies

• Breadfast
• Nabis
• Noora Health
• Stoke Space
• NALA
• Axoni
• Helion Energy
• HockeyStack
• Second Measure
• Albedo
• New Incentives
• Petcube
• Lynks
• Dost Education
• Alchemy
• Faction
• BrainKey
• PiinPoint
• Our World in Data
• Sarus

20 of 48, ordered by team size, largest first.

<a href="https://installmap.com/groups/yc/mailchimp"><img src="https://installmap.com/badges/yc/mailchimp.svg" alt="Mailchimp runs on 48 of 5,386 crawled YC companies (0.9%)"></a>

[![Mailchimp runs on 48 of 5,386 crawled YC companies (0.9%)](https://installmap.com/badges/yc/mailchimp.svg)](https://installmap.com/groups/yc/mailchimp)

Other CRM and Marketing Automation tools in this group

• HubSpot 11.2%
• Marketo 1.2%
• Klaviyo 0.8%
• Customer.io 0.3%
• ActiveCampaign 0.3%
• Salesforce Pardot 0.2%
• Salesforce Web-to-Lead 0.1%
• Zoho CRM Forms 0.1%