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Squarespace among Y Combinator companies
Squarespace was detected on 60 of 5,386 crawled Y Combinator company websites, a share of 1.1%.
| Group | Crawled | Running Squarespace | Share |
|---|---|---|---|
| Inc 5000 (2026) | 4,886 | 176 | 3.6% |
| Y Combinator companies | 5,386 | 60 | 1.1% |
| Fortune 500 | 472 | n/a | n/a |
| Unicorns | 1,000 | 10 | 1.0% |
| SaaS companies | 8,173 | 44 | 0.5% |
| Tranco top 10,000 | 1,572 | 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. <5 means fewer than 5 crawled domains in that group. Rank 5 of the 5 CMS tools published for this group.
Software used by Y Combinator companies · CMS across all groups · Squarespace across every group and the wider sample
Squarespace runs on these Y Combinator companies
- Relativity Space
- Grin
- Zeitview
- Numida
- Mystery.org
- Icarus
- Fleetzero
- C16 Biosciences
- Green Canopy NODE
- Genecis Bio
- Moichor
- Helix Nanotechnologies
- Revl
- Nextera Robotics | DIDGE.ai
- SunFarmer
- UPchieve
- Entocycle
- Epsilon3
- Farcast
- Industrial Microbes
20 of 60, ordered by team size, largest first.
Source: Installmap crawl, 4 September 2026
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<a href="https://installmap.com/groups/yc/squarespace"><img src="https://installmap.com/badges/yc/squarespace.svg" alt="Squarespace runs on 60 of 5,386 crawled YC companies (1.1%)"></a>
[](https://installmap.com/groups/yc/squarespace)
Badge URL: https://installmap.com/badges/yc/squarespace.svg · all badges.
Cite this
Installmap, Squarespace among Y Combinator companies, crawl of 4 September 2026, https://installmap.com/groups/yc/squarespace.
Other CMS tools in this group
- Webflow 15.7%
- WordPress 7.4%
- Framer 6.9%
- Sanity 1.9%
- Contentful 0.8%
- HubSpot CMS 0.8%
- Wix 0.8%
- Prismic 0.4%