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PostHog among Y Combinator companies

PostHog was detected on 687 of 5,386 crawled Y Combinator company websites, a share of 12.8%.

GroupCrawledRunning PostHogShare
Inc 5000 (2026) 4,885 86 1.8%
Y Combinator companies 5,386 687 12.8%
Fortune 500 472 n/a n/a
Unicorns 1,000 n/a n/a

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 Analytics tools published for this group.

Software used by Y Combinator companies · Analytics across all four groups · PostHog across every group and the wider sample

By batch year

Batch yearCrawledRunning PostHogShare
<=2019 1,595 55 3.4%
2020-21 984 101 10.3%
2022-23 1,008 169 16.8%
2024-25 1,157 256 22.1%
2026+ 642 106 16.5%

By industry

IndustryCrawledRunning PostHogShare
B2B 2,796 465 16.6%
Consumer 670 61 9.1%
Healthcare 620 44 7.1%
Fintech 573 57 9.9%
Industrials 420 16 3.8%
Real Estate and Construction 142 22 15.5%
Education 106 14 13.2%

By status

StatusCrawledRunning PostHogShare
Active 4,127 635 15.4%
Inactive 650 20 3.1%
Acquired 592 32 5.4%
PostHog share of crawled company websites, by groupInc 5000 (2026)1.8%Y Combinator companies12.8%Fortune 500n/aUnicornsn/a
PostHog share of crawled company websites, by group

Badge

PostHog runs on 12.8% of Y Combinator companies, 687 of 5,386 crawled companiesInstallmapUsed by 12.8% of Y Combinator companies
<a href="https://installmap.com/groups/yc/posthog"><img src="https://installmap.com/badges/yc/posthog.svg" alt="PostHog runs on 12.8% of Y Combinator companies, 687 of 5,386 crawled companies"></a>
[![PostHog runs on 12.8% of Y Combinator companies, 687 of 5,386 crawled companies](https://installmap.com/badges/yc/posthog.svg)](https://installmap.com/groups/yc/posthog)

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

Cite

PostHog was detected on 687 of 5,386 crawled Y Combinator company websites (12.8%). Installmap, 4 September 2026, https://installmap.com/groups/yc/posthog.

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