A breakdown of the 1.9K+ companies running CalDAV groupware.
Top industries
Professional and business services241
Construction and building231
Art, sports and recreation130
Industrial and manufacturing124
Information technology and services112
Real estate and home services111
Health and wellness99
Transport96
No industry recorded: 273
Company size
1–10267 (42%)
11–50203 (32%)
51–250126 (20%)
251–50020 (3%)
501–1,0007 (1%)
1,001–5,00013 (2%)
5,001–10,0003 (<1%)
10,001+1 (<1%)
Share of companies with a recorded size, by employees.
No size recorded: 1.3K
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Frequently asked questions
About the CalDAV groupware data on this page.
How many companies use CalDAV groupware?
Firmable holds confirmed CalDAV groupware detections for 1,940 distinct companies, 1,906 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use CalDAV groupware?
SAWTST, LLC, Popl and Holbrook Life are among the most prominent in the current set.
What industries use CalDAV groupware?
Professional and business services, construction and building and art, sports and recreation lead the set, across 19 industries in total.
What size companies use CalDAV groupware?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are CalDAV groupware users based?
The United States, Canada, Australia and New Zealand account for most detections, across 13 countries.
How current is this data?
1,906 companies were confirmed in the last 90 days. Last detection 1 October 2026.
