A breakdown of the 293 companies running Cyrus IMAP.
Top industries
Information technology and services95
Media and telecommunications33
Education and training32
Professional and business services29
Financial services12
Industrial and manufacturing12
Art, sports and recreation7
Retail trade6
No industry recorded: 33
Company size
1–1046 (24%)
11–5046 (24%)
51–25046 (24%)
251–50017 (9%)
501–1,0005 (3%)
1,001–5,00020 (10%)
5,001–10,0006 (3%)
10,001+6 (3%)
Share of companies with a recorded size, by employees.
No size recorded: 101
Versions detected
10 versions across the confirmed companies. Counts are distinct companies seen running that version.
2.4.17-Fedora-RPM-2.4.17-15.el742
2.4.17-Fedora-RPM-2.4.17-13.el721
2.4.17-Fedora-RPM-2.4.17-15.el7.aorepo.29
2.2.138
2.3.16-Fedora-RPM-2.3.16-15.el68
2.3.7-Invoca-RPM-2.3.7-16.el5_117
2.3.166
2.3.7-Invoca-RPM-2.3.7-12.el5_7.26
2.2.125
2.4.16-Debian-2.4.16-4+deb7u24
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Frequently asked questions
About the Cyrus IMAP data on this page.
How many companies use Cyrus IMAP?
Firmable holds confirmed Cyrus IMAP detections for 293 distinct companies, 293 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Cyrus IMAP?
123NET, Linode and Southampton County Public Schools are among the most prominent in the current set.
What industries use Cyrus IMAP?
Information technology and services, media and telecommunications and education and training lead the set, across 18 industries in total.
What size companies use Cyrus IMAP?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are Cyrus IMAP users based?
The United States, Canada, Australia and Indonesia account for most detections, across 13 countries.
How current is this data?
293 companies were confirmed in the last 90 days. Last detection 14 October 2026.
