A breakdown of the 9 companies running Dahua DHI-NVR421.
Top industries
Information technology and services4
Media and telecommunications4
Industrial and manufacturing1
Company size
251–5002 (25%)
501–1,0001 (12%)
1,001–5,0002 (25%)
10,001+3 (38%)
Share of companies with a recorded size, by employees.
No size recorded: 1
Versions detected
2 versions across the confirmed companies. Counts are distinct companies seen running that version.
3.201.0000.19
3.202.0000.11
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Frequently asked questions
About the Dahua DHI-NVR421 data on this page.
How many companies use Dahua DHI-NVR421?
Firmable holds confirmed Dahua DHI-NVR421 detections for 9 distinct companies, 9 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Dahua DHI-NVR421?
Telstra International, ViewQwest and Aussie Broadband are among the most prominent in the current set.
What industries use Dahua DHI-NVR421?
Information technology and services, media and telecommunications and industrial and manufacturing lead the set, across 4 industries in total.
What size companies use Dahua DHI-NVR421?
Adoption concentrates in the 10,001+ employee band, across the companies whose size is recorded.
Where are Dahua DHI-NVR421 users based?
Australia, the United States, the Philippines and Malaysia account for most detections, across 13 countries.
How current is this data?
9 companies were confirmed in the last 90 days. Last detection 12 October 2026.
