A breakdown of the 107 companies running OpenPGP.org.
Top industries
Information technology and services38
Education and training5
Media and telecommunications5
Construction and building4
Professional and business services4
Financial services3
Industrial and manufacturing3
Real estate and home services3
No industry recorded: 34
Company size
1–1021 (43%)
11–5016 (33%)
51–2506 (12%)
251–5002 (4%)
1,001–5,0002 (4%)
5,001–10,0002 (4%)
Share of companies with a recorded size, by employees.
No size recorded: 58
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Frequently asked questions
About the OpenPGP.org data on this page.
How many companies use OpenPGP.org?
Firmable holds confirmed OpenPGP.org detections for 107 distinct companies, 107 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use OpenPGP.org?
Calibrate Health, Inc., MCNC and Glassboard are among the most prominent in the current set.
What industries use OpenPGP.org?
Information technology and services, education and training and media and telecommunications lead the set, across 14 industries in total.
What size companies use OpenPGP.org?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are OpenPGP.org users based?
The United States, Australia, Canada and New Zealand account for most detections, across 13 countries.
How current is this data?
107 companies were confirmed in the last 90 days. Last detection 13 October 2026.
