A breakdown of the 11 companies running Yeastar S50 PBX.
Top industries
Media and telecommunications4
Information technology and services3
Agriculture, forestry and fishing1
Health and wellness1
Industrial and manufacturing1
No industry recorded: 1
Company size
11–502 (18%)
51–2502 (18%)
251–5002 (18%)
1,001–5,0004 (36%)
10,001+1 (9%)
Share of companies with a recorded size, by employees.
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Frequently asked questions
About the Yeastar S50 PBX data on this page.
How many companies use Yeastar S50 PBX?
Firmable holds confirmed Yeastar S50 PBX detections for 11 distinct companies, 11 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Yeastar S50 PBX?
ViewQwest, J. Wagner GmbH and RETN are among the most prominent in the current set.
What industries use Yeastar S50 PBX?
Media and telecommunications, information technology and services and agriculture, forestry and fishing lead the set, across 8 industries in total.
What size companies use Yeastar S50 PBX?
Adoption concentrates in the 1,001-5,000 employee band, across the companies whose size is recorded.
Where are Yeastar S50 PBX users based?
The United States, Australia, Malaysia and Singapore account for most detections, across 13 countries.
How current is this data?
11 companies were confirmed in the last 90 days. Last detection 13 October 2026.
