Technology answer

Substack

385

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

Hosts: 11,989 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

385 companies is under the publication floor of 1,000, and the fixed panel anchored at 31 Dec 2020 carries 58 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 6 Oct 2023, last discovered 10 Sept 2026.

Both denominators, and a third

Shares of the same 385each row a different wholelanding 12 Sept 2026

Denominator

Companies

Share

companies in the index

54,527,857

<0.01%

companies running anything in Blogs and Publishing

1,479,252

0.03%

companies running anything in Hosted blogging platforms

199,595

0.19%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, Substack is rank 7 of 26 technologies in Hosted blogging platforms.

Open as a segment

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

/companies/tech-substack

Open the segment

Catalogue record

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

Publishing platform for newsletters and blogs with paid subscriptions.

Substack is a hosted publishing platform where writers run newsletters and blogs, including paid subscriptions processed through the platform. It is used by independent writers and media brands to publish and monetize content.

Kindproduct

VendorSubstack, substack.com

PathWeb Platform and Content > Blogs and Publishing > Hosted blogging platforms

Slugsubstack

Deploymentsaas

Pricingusage based

Open sourceno

First discovered2023-10-06

Last discovered2026-09-10

Taxonomy releasetax-2026.10

One click under this answer

Subcategory answerHosted blogging platformsCompanies running anything in Hosted blogging platforms, 199,595 of 54,527,857 in the index, and the technologies ranked in it.Category answerBlogs and PublishingThe 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.