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WordPress among Y Combinator companies

WordPress was detected on 397 of 5,386 crawled Y Combinator company websites, a share of 7.4%.

7.4% Share
397 Running WordPress
5,386 Crawled
GroupCrawledRunning WordPressShare
Inc 5000 (2026) 4,886 2,569 52.6%
Y Combinator companies 5,386 397 7.4%
Fortune 500 472 68 14.4%
Unicorns 1,000 244 24.4%
SaaS companies 8,173 1,105 13.5%
Tranco top 10,000 1,572 159 10.1%

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 2 of the 5 CMS tools published for this group.

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

WordPress runs on these Y Combinator companies

  • Breadfast
  • Orange Health Labs
  • PagerDuty
  • Guesty
  • Ironclad
  • Shipper
  • ACLU
  • FAZZ
  • H1
  • Noora Health
  • Papa
  • Reliance Health
  • Moxion Power Co.
  • Magic
  • Simetrik
  • Unbabel
  • SkydropX
  • Stoke Space
  • Heroku
  • NURX

20 of 397, ordered by team size, largest first.

Full list: 397 Y Combinator companies running WordPress, with domain and company columns. CSV, $29 one-time.

By batch year

Batch yearCrawledRunning WordPressShare
<=2019 1,595 241 15.1%
2020-21 984 87 8.8%
2022-23 1,008 61 6.1%
2024-25 1,157 6 0.5%
2026+ 642 2 0.3%

By industry

IndustryCrawledRunning WordPressShare
B2B 2,796 152 5.4%
Consumer 670 50 7.5%
Healthcare 620 72 11.6%
Fintech 573 53 9.2%
Industrials 420 39 9.3%
Real Estate and Construction 142 13 9.2%
Education 106 9 8.5%

By status

StatusCrawledRunning WordPressShare
Active 4,127 242 5.9%
Inactive 650 60 9.2%
Acquired 592 92 15.5%
WordPress share of crawled company websites, by groupInc 5000 (2026)52.6%Y Combinator companies7.4%Fortune 50014.4%Unicorns24.4%SaaS companies13.5%Tranco top 10,00010.1%
WordPress share of crawled company websites, by group

Source: Installmap crawl, 4 September 2026

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WordPress runs on 397 of 5,386 crawled YC companies (7.4%)InstallmapUsed by 397 YC companies
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Installmap, WordPress among Y Combinator companies, crawl of 4 September 2026, https://installmap.com/groups/yc/wordpress.

Canonical URL
https://installmap.com/groups/yc/wordpress
Denominator
397 of 5,386 crawled Y Combinator company websites, a share of 7.4%

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