A breakdown of the 48 companies running Slackware.
Top industries
Information technology and services21
Media and telecommunications8
Professional and business services4
Education and training3
Construction and building2
Government and public services2
Industrial and manufacturing2
Transport2
Company size
1–103 (8%)
11–507 (18%)
51–2508 (21%)
251–5003 (8%)
1,001–5,0009 (23%)
5,001–10,0002 (5%)
10,001+7 (18%)
Share of companies with a recorded size, by employees.
No size recorded: 9
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Frequently asked questions
About the Slackware data on this page.
How many companies use Slackware?
Firmable holds confirmed Slackware detections for 48 distinct companies, 10 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Slackware?
Progent, Ivanti and Alphabet Inc. are among the most prominent in the current set.
What industries use Slackware?
Information technology and services, media and telecommunications and professional and business services lead the set, across 13 industries in total.
What size companies use Slackware?
Adoption concentrates in the 1,001-5,000 employee band, across the companies whose size is recorded.
Where are Slackware users based?
The United States, Canada, Australia and Singapore account for most detections, across 13 countries.
How current is this data?
10 companies were confirmed in the last 90 days. Last detection 6 September 2026.
