A breakdown of the 1.9K+ companies running CardDAV groupware.
Top industries
Professional and business services242
Construction and building231
Art, sports and recreation130
Industrial and manufacturing125
Information technology and services113
Real estate and home services111
Health and wellness99
Transport96
No industry recorded: 274
Company size
1–10266 (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 CardDAV groupware data on this page.
How many companies use CardDAV groupware?
Firmable holds confirmed CardDAV groupware detections for 1,943 distinct companies, 1,909 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use CardDAV groupware?
SAWTST, LLC, Popl and Holbrook Life are among the most prominent in the current set.
What industries use CardDAV 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 CardDAV groupware?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are CardDAV groupware users based?
The United States, Canada, Australia and New Zealand account for most detections, across 13 countries.
How current is this data?
1,909 companies were confirmed in the last 90 days. Last detection 1 October 2026.
