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PostHog among Y Combinator companies

PostHog was detected on 688 of 5,386 crawled Y Combinator company websites, a share of 12.8%.

12.8% Share
688 Running PostHog
5,386 Crawled
GroupCrawledRunning PostHogShare
Inc 5000 (2026) 4,886 86 1.8%
Y Combinator companies 5,386 688 12.8%
Fortune 500 472 n/a n/a
Unicorns 1,000 15 1.5%
SaaS companies 8,173 57 0.7%
Tranco top 10,000 1,572 8 0.5%

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 Analytics tools published for this group.

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

PostHog runs on these Y Combinator companies

  • Tractian
  • NURX
  • Coderhouse
  • GetAccept
  • Spenmo
  • Poliglota
  • Remi
  • Verto
  • Alaan
  • Riot
  • Awesomic
  • Mashgin
  • OneSignal
  • Bitmovin
  • SafetyWing
  • Daily
  • Abacum
  • Numeral
  • BuildZoom
  • Stepful

20 of 688, ordered by team size, largest first.

Full list: 688 Y Combinator companies running PostHog, with domain and company columns. CSV, $29 one-time.

By batch year

Batch yearCrawledRunning PostHogShare
<=2019 1,595 56 3.5%
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 2,796 466 16.7%
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 4,127 636 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/aUnicorns1.5%SaaS companies0.7%Tranco top 10,0000.5%
PostHog share of crawled company websites, by group

Source: Installmap crawl, 4 September 2026

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PostHog runs on 688 of 5,386 crawled YC companies (12.8%)InstallmapUsed by 688 YC companies
<a href="https://installmap.com/groups/yc/posthog"><img src="https://installmap.com/badges/yc/posthog.svg" alt="PostHog runs on 688 of 5,386 crawled YC companies (12.8%)"></a>
[![PostHog runs on 688 of 5,386 crawled YC companies (12.8%)](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 this

Installmap, PostHog among Y Combinator companies, crawl of 4 September 2026, https://installmap.com/groups/yc/posthog.

Canonical URL
https://installmap.com/groups/yc/posthog
Denominator
688 of 5,386 crawled Y Combinator company websites, a share of 12.8%

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