A breakdown of the 2.9K+ companies running IEC 62443.
Top industries
Industrial and manufacturing873
Information technology and services657
Resources, energy and utilities301
Professional and business services255
Construction and building249
Financial services94
Media and telecommunications77
Transport76
No industry recorded: 83
Company size
1–10133 (5%)
11–50206 (7%)
51–250472 (17%)
251–500323 (11%)
501–1,000280 (10%)
1,001–5,000687 (24%)
5,001–10,000260 (9%)
10,001+486 (17%)
Share of companies with a recorded size, by employees.
No size recorded: 130
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Frequently asked questions
About the IEC 62443 data on this page.
How many companies use IEC 62443?
Firmable holds confirmed IEC 62443 detections for 2,977 distinct companies, 1,003 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use IEC 62443?
voestalpine High Performance Metals, Emerson Automation Solutions and National Urban League are among the most prominent in the current set.
What industries use IEC 62443?
Industrial and manufacturing, information technology and services and resources, energy and utilities lead the set, across 19 industries in total.
What size companies use IEC 62443?
Adoption concentrates in the 1,001-5,000 employee band, across the companies whose size is recorded.
Where are IEC 62443 users based?
The United States, Australia, Canada and Singapore account for most detections, across 13 countries.
How current is this data?
1,003 companies were confirmed in the last 90 days. Last detection 7 September 2026.
