Companies using Microsoft Exchange Online Protection
As of 14 October 2026, Firmable tracks 12,262 companies across 13 countries running Microsoft Exchange Online Protection. See who they are, and who to call.
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A breakdown of the 12K+ companies running Microsoft Exchange Online Protection.
Top industries
Construction and building2K+
Professional and business services1.6K+
Financial services1.5K+
Industrial and manufacturing1.2K+
Health and wellness1.1K+
Information technology and services531
Real estate and home services416
Transport388
No industry recorded: 751
Company size
1–102,384 (25%)
11–503,273 (34%)
51–2503,046 (32%)
251–500813 (8%)
501–1,00039 (<1%)
1,001–5,00061 (1%)
5,001–10,0006 (<1%)
10,001+20 (<1%)
Share of companies with a recorded size, by employees.
No size recorded: 2.6K+
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Frequently asked questions
About the Microsoft Exchange Online Protection data on this page.
How many companies use Microsoft Exchange Online Protection?
Firmable holds confirmed Microsoft Exchange Online Protection detections for 12,262 distinct companies, 11,872 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Microsoft Exchange Online Protection?
Waste Harmonics Keter, MapLight Therapeutics, Inc. and National Co+op Grocers are among the most prominent in the current set.
What industries use Microsoft Exchange Online Protection?
Construction and building, professional and business services and financial services lead the set, across 19 industries in total.
What size companies use Microsoft Exchange Online Protection?
Adoption concentrates in the 11-50 employee band, across the companies whose size is recorded.
Where are Microsoft Exchange Online Protection users based?
The United States, Canada, Australia and the Philippines account for most detections, across 13 countries.
How current is this data?
11,872 companies were confirmed in the last 90 days. Last detection 11 October 2026.
