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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%.

GroupCrawledRunning MailchimpShare
Inc 5000 (2026) 4,885 84 1.7%
Y Combinator companies 5,386 48 0.9%
Fortune 500 472 n/a n/a
Unicorns 1,000 6 0.6%

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. 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 four groups · Mailchimp across every group and the wider sample

Mailchimp share of crawled company websites, by groupInc 5000 (2026)1.7%Y Combinator companies0.9%Fortune 500n/aUnicorns0.6%
Mailchimp share of crawled company websites, by group

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

Badge URL: https://installmap.com/badges/yc/mailchimp.svg · all badges.

Cite

Mailchimp was detected on 48 of 5,386 crawled Y Combinator company websites (0.9%). Installmap, 4 September 2026, https://installmap.com/groups/yc/mailchimp.

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