A breakdown of the 2.5K+ companies running Mastodon.
Top industries
Information technology and services147
Media and telecommunications69
Education and training47
Professional and business services43
Art, sports and recreation37
Government and public services19
Not for profit17
Industrial and manufacturing10
No industry recorded: 2.1K+
Company size
1–10232 (49%)
11–5080 (17%)
51–25073 (16%)
251–50018 (4%)
501–1,00010 (2%)
1,001–5,00029 (6%)
5,001–10,00013 (3%)
10,001+15 (3%)
Share of companies with a recorded size, by employees.
No size recorded: 2.1K+
Versions detected
6 versions across the confirmed companies. Counts are distinct companies seen running that version.
3.3.03
2.8.02
3.2.02
3.0.01
3.0.11
3.1.31
One dataset. Four ways to sell.
Match the deepest technology intelligence against the most comprehensive data on companies and people – such as who is growing, raised capital or changed role – for pinpoint precision on GTM campaigns.
Competitor displacement
Find the accounts running a competitor today and go after them with the right argument.
Complementary tools
Target companies whose stack sits alongside yours and integrates without a fight.
Service partners
Identify implementers and agencies already working in the technologies you support.
Market insights
Map your total addressable market and track aggregated trends such as AI maturity.
Frequently asked questions
About the Mastodon data on this page.
How many companies use Mastodon?
Firmable holds confirmed Mastodon detections for 2,578 distinct companies, 1,904 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Mastodon?
GCU-ACM Student Chapter, The Company of Biologists and Waag Futurelab are among the most prominent in the current set.
What industries use Mastodon?
Information technology and services, media and telecommunications and education and training lead the set, across 18 industries in total.
What size companies use Mastodon?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are Mastodon users based?
The United States, Australia, Canada and Japan account for most detections, across 13 countries.
How current is this data?
1,904 companies were confirmed in the last 90 days. Last detection 14 October 2026.
