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Apollo.io Tracker among Y Combinator companies

Apollo.io Tracker was detected on 172 of 5,386 crawled Y Combinator company websites, a share of 3.2%.

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 1 of the 5 Visitor Identification and ABM tools published for this group.

Software used by Y Combinator companies · Visitor Identification and ABM across all four groups · Apollo.io Tracker across every group and the wider sample

<a href="https://installmap.com/groups/yc/apollo-tracker"><img src="https://installmap.com/badges/yc/apollo-tracker.svg" alt="Apollo.io Tracker is the most detected Visitor Identification tool among Y Combinator companies, 3.2% of the 5,386 crawled companies"></a>

[![Apollo.io Tracker is the most detected Visitor Identification tool among Y Combinator companies, 3.2% of the 5,386 crawled companies](https://installmap.com/badges/yc/apollo-tracker.svg)](https://installmap.com/groups/yc/apollo-tracker)

Cite

Apollo.io Tracker was detected on 172 of 5,386 crawled Y Combinator company websites (3.2%). Installmap, 4 September 2026, https://installmap.com/groups/yc/apollo-tracker.

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