Share of companies with a recorded size, by employees.
No size recorded: 6
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Frequently asked questions
About the Postini data on this page.
How many companies use Postini?
Firmable holds confirmed Postini detections for 57 distinct companies, 22 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Postini?
Socket Fiber, GVTC and Greenwich Country Day School are among the most prominent in the current set.
What industries use Postini?
Information technology and services, professional and business services and industrial and manufacturing lead the set, across 14 industries in total.
What size companies use Postini?
Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.
Where are Postini users based?
The United States, Canada, the Philippines and Australia account for most detections, across 13 countries.
How current is this data?
22 companies were confirmed in the last 90 days. Last detection 13 October 2026.
