Technology answer

Microsoft Exchange

161

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

Hosts: 226 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

161 companies is under the publication floor of 1,000, and the fixed panel anchored at 31 Dec 2020 carries 100 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 14 Mar 2025, last discovered 10 Sept 2026.

Both denominators, and a third

Shares of the same 161each 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 Business email hosting

24,251

0.66%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, Microsoft Exchange is rank 3 of 3 technologies in Business email hosting.

Open as a segment

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

/companies/tech-microsoft-exchange

Open the segment

Catalogue record

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

Microsoft’s business email and calendaring platform delivered on‑premises and as Exchange Online.

Microsoft Exchange provides email, calendaring and contacts for organizations, with Exchange Server on‑premises and Exchange Online in Microsoft 365. It is widely used by enterprises for corporate email and collaboration.

Kindproduct

VendorMicrosoft, microsoft.com

PathBusiness Operations > Productivity and Email Suites > Business email hosting

Slugmicrosoft-exchange

Deploymenthybrid

Pricingsubscription, quote based, enterprise

Open sourceno

First discovered2025-03-14

Last discovered2026-09-10

Taxonomy releasetax-2026.10

One click under this answer

Subcategory answerBusiness email hostingCompanies running anything in Business email hosting, 24,251 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.