Technology answer

Mattermost

254

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

Hosts: 648 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

254 companies is under the publication floor of 1,000, and the fixed panel anchored at 31 Dec 2020 carries 83 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 26 Apr 2020, last discovered 10 Sept 2026.

Both denominators, and a third

Shares of the same 254each row a different wholelanding 12 Sept 2026

Denominator

Companies

Share

companies in the index

54,527,857

<0.01%

companies running anything in Collaboration and Project Management

45,997

0.55%

companies running anything in Team collaboration and communications

13,121

1.9%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, Mattermost is rank 3 of 5 technologies in Team collaboration and communications.

Open as a segment

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

/companies/tech-mattermost

Open the segment

Catalogue record

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

Team messaging and collaboration platform available self-hosted or in the cloud.

Mattermost is a team chat and collaboration platform for messaging, channels, and integrations. It is offered by Mattermost, Inc. with both self-managed and cloud-hosted options used by engineering and enterprise teams.

Kindproduct

VendorMattermost, Inc., mattermost.com

PathBusiness Operations > Collaboration and Project Management > Team collaboration and communications

Slugmattermost

Deploymenthybrid

Pricingfreemium, subscription, enterprise

Open sourceno

First discovered2020-04-26

Last discovered2026-09-10

Taxonomy releasetax-2026.10

One click under this answer

Subcategory answerTeam collaboration and communicationsCompanies running anything in Team collaboration and communications, 13,121 of 54,527,857 in the index, and the technologies ranked in it.Category answerCollaboration and Project ManagementThe 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.