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Webflow among Y Combinator companies

Webflow was detected on 845 of 5,386 crawled Y Combinator company websites, a share of 15.7%.

GroupCrawledRunning WebflowShare
Inc 5000 (2026) 4,885 410 8.4%
Y Combinator companies 5,386 845 15.7%
Fortune 500 472 n/a n/a
Unicorns 1,000 114 11.4%

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 CMS tools published for this group.

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

By batch year

Batch yearCrawledRunning WebflowShare
<=2019 1,595 245 15.4%
2020-21 984 252 25.6%
2022-23 1,008 218 21.6%
2024-25 1,157 118 10.2%
2026+ 642 12 1.9%

By industry

IndustryCrawledRunning WebflowShare
B2B 2,796 436 15.6%
Consumer 670 43 6.4%
Healthcare 620 145 23.4%
Fintech 573 101 17.6%
Industrials 420 68 16.2%
Real Estate and Construction 142 30 21.1%
Education 106 13 12.3%

By status

StatusCrawledRunning WebflowShare
Active 4,127 710 17.2%
Inactive 650 43 6.6%
Acquired 592 89 15.0%
Webflow share of crawled company websites, by groupInc 5000 (2026)8.4%Y Combinator companies15.7%Fortune 500n/aUnicorns11.4%
Webflow share of crawled company websites, by group

Badge

Webflow is the most detected CMS tool among Y Combinator companies, 15.7% of the 5,386 crawled companiesInstallmap#1 CMS among Y Combinator companies ยท 15.7%
<a href="https://installmap.com/groups/yc/webflow"><img src="https://installmap.com/badges/yc/webflow.svg" alt="Webflow is the most detected CMS tool among Y Combinator companies, 15.7% of the 5,386 crawled companies"></a>
[![Webflow is the most detected CMS tool among Y Combinator companies, 15.7% of the 5,386 crawled companies](https://installmap.com/badges/yc/webflow.svg)](https://installmap.com/groups/yc/webflow)

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

Cite

Webflow was detected on 845 of 5,386 crawled Y Combinator company websites (15.7%). Installmap, 4 September 2026, https://installmap.com/groups/yc/webflow.

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