Technology answer

Cornerstone

874

companies run it, <0.01% of 54,527,857 in the index. Landing 12 Sept 2026.

Hosts: 1,470 live hosts run it, of 191,809,695 hosts in the index, <0.01%. A host is a website, not a company.

Companies by month

No published series

874 companies is under the publication floor of 1,000, and the fixed panel anchored at 31 Dec 2020 carries 236 of them. A monthly line drawn off that many observations would be noise at the same weight as a line off millions, so this page states the count and its date and publishes no series.

First discovered 3 Feb 2025, last discovered 10 Sept 2026.

Both denominators, and a third

Shares of the same 874each row a different wholelanding 12 Sept 2026

Denominator

Companies

Share

companies in the index

54,527,857

<0.01%

companies running anything in CMS and Site Builders

33,930,390

<0.01%

companies running anything in Headless CMS

107,211

0.82%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, Cornerstone is rank 15 of 41 technologies in Headless CMS.

Open as a segment

874 companies; add a country, a sector or a band on the segment page. Counting is free.

/companies/tech-cornerstone

Open the segment

Catalogue record

As recorded in the cataloguetaxonomy release tax-2026.10last discovered 10 Sept 2026

An open-source headless CMS with a hosted option from Cornerstone Platform.

Cornerstone is a content management system that exposes content via APIs and can be self-hosted or used as a managed service. It targets teams seeking a flexible, developer-friendly CMS with an open-source core.

Kindproduct

VendorCornerstone Platform, cornerstoneplatform.com

PathWeb Platform and Content > CMS and Site Builders > Headless CMS

Slugcornerstone

Deploymenthybrid

Pricingfreemium, subscription

Open sourceyes

First discovered2025-02-03

Last discovered2026-09-10

Taxonomy releasetax-2026.10

One click under this answer

Subcategory answerHeadless CMSCompanies running anything in Headless CMS, 107,211 of 54,527,857 in the index, and the technologies ranked in it.Category answerCMS and Site BuildersThe category above this one, with its subcategories and the companies in each.CatalogueAll 8,177 technologiesRanked by the companies running them, with the publication gate named and the long tail drawn.