Technology answer

CrossBox

44

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

Hosts: 59 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

44 companies is under the publication floor of 1,000, and the fixed panel anchored at 31 Dec 2020 carries 13 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 12 Oct 2023, last discovered 17 Aug 2026.

Both denominators, and a third

Shares of the same 44each row a different wholelanding 12 Sept 2026

Denominator

Companies

Share

companies in the index

54,527,857

<0.01%

companies running anything in Productivity and Email Suites

8,549,003

<0.01%

companies running anything in Email server software

46

withheld

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, CrossBox is rank 1 of 4 technologies in Email server software.

Open as a segment

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

/companies/tech-crossbox

Open the segment

Catalogue record

As recorded in the cataloguetaxonomy release tax-2026.10last discovered 17 Aug 2026

Self-hosted email and collaboration suite with webmail.

CrossBox is a self-hosted email platform providing webmail, IMAP/SMTP, contacts, calendar, and collaboration features. Hosting providers and organizations deploy it on their own servers.

Kindproduct

VendorCrossBox, crossbox.io

PathBusiness Operations > Productivity and Email Suites > Email server software

Slugcrossbox

Deploymentself-hosted

Pricingsubscription, quote based

Open sourceno

First discovered2023-10-12

Last discovered2026-08-17

Taxonomy releasetax-2026.10

One click under this answer

Subcategory answerEmail server softwareCompanies running anything in Email server software, 46 of 54,527,857 in the index, and the technologies ranked in it.Category answerProductivity and Email SuitesThe 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.