A breakdown of the 25 companies running Posthaven.
Top industries
Information technology and services6
Professional and business services5
Education and training3
Retail trade2
Art, sports and recreation1
Consumer services1
Hospitality and travel1
Media and telecommunications1
No industry recorded: 5
Company size
1–106 (35%)
11–502 (12%)
51–2505 (29%)
251–5003 (18%)
1,001–5,0001 (6%)
Share of companies with a recorded size, by employees.
No size recorded: 8
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Frequently asked questions
About the Posthaven data on this page.
How many companies use Posthaven?
Firmable holds confirmed Posthaven detections for 25 distinct companies, 24 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Posthaven?
Rogers Park Montessori School, icar asia (powered by carsome) and Brickton Montessori School are among the most prominent in the current set.
What industries use Posthaven?
Information technology and services, professional and business services and education and training lead the set, across 9 industries in total.
What size companies use Posthaven?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are Posthaven users based?
The United States, Canada, Indonesia and Australia account for most detections, across 8 countries.
How current is this data?
24 companies were confirmed in the last 90 days. Last detection 13 October 2026.
