Technology answer

Sovrn

522

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

Hosts: 3,903 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

522 companies is under the publication floor of 1,000, and the fixed panel anchored at 31 Dec 2020 carries 198 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 2022, last discovered 10 Sept 2026.

Both denominators, and a third

Shares of the same 522each row a different wholelanding 12 Sept 2026

Denominator

Companies

Share

companies in the index

54,527,857

<0.01%

companies running anything in Advertising

15,368,013

<0.01%

companies running anything in Ad exchanges

300,091

0.17%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, Sovrn is rank 8 of 19 technologies in Ad exchanges.

Open as a segment

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

/companies/tech-sovrn

Open the segment

Catalogue record

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

An advertising network and exchange for publishers by Sovrn.

Sovrn provides programmatic advertising, header bidding, and monetization tools for publishers. Sites integrate its tags to access demand and manage ad revenue on a revenue-share basis.

Kindproduct

VendorSovrn, sovrn.com

PathMarketing and Advertising > Advertising > Ad exchanges

Slugsovrn

Deploymentsaas

Pricingusage based

Open sourceno

First discovered2022-02-03

Last discovered2026-09-10

Taxonomy releasetax-2026.10

One click under this answer

Subcategory answerAd exchangesCompanies running anything in Ad exchanges, 300,091 of 54,527,857 in the index, and the technologies ranked in it.Category answerAdvertisingThe 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.