Microsoft 365
4,536,567 sites detectedWebmail · #1 of 13Updated October 2026
Companies using Microsoft 365
| # | Company | Industry | Location | First seen | Evidence |
|---|---|---|---|---|---|
| 1 | HR & People Tech | – | Apr 2026 | MX record | |
| 2 | Marketing & Sales Tech | Lauderhill, US | Sept 2026 | DNS TXT record | |
| 3 | E-commerce & Retail | – | May 2026 | MX record | |
| 4 | Healthcare & Life Sciences | – | Sept 2026 | MX record | |
| 5 | E-commerce & Retail | CA | Apr 2026 | MX record | |
| 6 | Professional Services | – | Sept 2026 | MX record | |
| 7 | E-commerce & Retail | Papillion, US | Sept 2026 | MX record | |
| 8 | Healthcare & Life Sciences | Fort Stockton, US | Sept 2026 | MX record | |
| 9 | E-commerce & Retail | Reno, US | Sept 2026 | MX record | |
| 10 | E-commerce & Retail | IN | Apr 2026 | DNS TXT record |
See all 4,536,567 sites detected using Microsoft 365
Showing 10 of 4,536,567 sites detected. The customer list has every company, the new customers this month, filters and downloads.
Who uses Microsoft 365
New customers per week
Companies we saw start using it, from 21 September 2026.
By sector
44% of 140 sampled customers have a known sector.
By country
Country is known for 19% of 140 sampled customers.
Also used by these customers
Share of sampled Microsoft 365 customers running each tool.
Webmail: share by companies
Microsoft 365 is #1 of 13, with 45% of companies running a tool in this category.
How we found them
Share of sampled customers by where the evidence was.
Every company in the list shows which kind of evidence we found and when. Data quality
Every company using Microsoft 365
The customer list shows who they are, the evidence for each one and who started this month.