A breakdown of the 7.8K+ companies running mod_jk.
Top industries
Education and training1.2K+
Information technology and services1K+
Professional and business services605
Industrial and manufacturing544
Real estate and home services517
Construction and building449
Art, sports and recreation350
Financial services311
No industry recorded: 1K+
Company size
1–10995 (21%)
11–501,153 (25%)
51–2501,226 (26%)
251–500454 (10%)
501–1,000183 (4%)
1,001–5,000375 (8%)
5,001–10,000130 (3%)
10,001+186 (4%)
Share of companies with a recorded size, by employees.
No size recorded: 3.1K+
Versions detected
10 versions across the confirmed companies. Counts are distinct companies seen running that version.
1.2.48477
1.2.46274
1.2.50266
1.2.40193
1.2.42192
1.2.49147
1.2.41102
1.2.3772
1.2.4359
1.2.3122
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Market insights
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Frequently asked questions
About the mod_jk data on this page.
How many companies use mod_jk?
Firmable holds confirmed mod_jk detections for 7,843 distinct companies, 4,043 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use mod_jk?
Smith Douglas Homes, Mindgruve and Alter Trading are among the most prominent in the current set.
What industries use mod_jk?
Education and training, information technology and services and professional and business services lead the set, across 19 industries in total.
What size companies use mod_jk?
Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.
Where are mod_jk users based?
The United States, Canada, Australia and South Korea account for most detections, across 13 countries.
How current is this data?
4,043 companies were confirmed in the last 90 days. Last detection 14 October 2026.
