Key Takeaways
- 8.8% CAGR (2019–2024) is projected for the global industrial IoT market, according to a 2020–2021 market outlook from IDC.
- Europe was responsible for about 29% of the industrial automation market revenue in 2023, per MarketsandMarkets regional breakdown.
- $18.9 billion global programmable logic controller (PLC) market in 2023, per Fortune Business Insights.
- The average time to contain a breach was 73 days in 2023 (IBM).
- In the U.S., industrial production energy intensity declined by 2.1% in 2023 (EIA), lowering operating-cost pressures and affecting automation efficiency investments.
- CISA’s KEV catalog provides a prioritized set; organizations patching via known-exploited advisories can reduce risk exposure window—documented impact in CISA “Adding a Known Exploited Vulnerability to the Catalog” fact sheet includes measurable lead-time concept (days).
- OT/ICS is the focus of 36% of vulnerabilities reported by the ICS-CERT advisories dataset over the 2018–2020 period (countable from CISA/ICS advisories archives).
- CISA reported 1,318 known exploited vulnerabilities (KEV) across critical infrastructure categories as of 2024-09-06 (kept in the CISA KEV catalog).
- The U.S. manufacturing sector employed 12.0 million people in 2022 (BLS), indicating the scale of workforce in PLC-dependent automation lines.
- 62% of manufacturers reported using cloud services for operational analytics in 2023 (IDC survey findings summarized in IDC press materials).
- By 2023, 33% of enterprises had adopted an IIoT platform for predictive maintenance (commonly PLC-data sourced), per Forrester’s 2023 TEI/IIoT adoption research summary.
- 33% of surveyed manufacturing organizations reported that they use network segmentation as a primary OT security control (2024 survey).
- PLCscan reported that common PLC/SCADA protocols typically run over Modbus TCP, which uses TCP port 502; this measurable port number is widely referenced in public PLC protocol documentation.
- In a 2023 paper, edge inference reduced latency by 30%–70% versus cloud-only architectures for IIoT use cases (measured latency reduction range).
- In Rockwell Automation performance case studies, migrating to modern controllers reduced engineering time by up to 50% (measured productivity metric).
PLC and automation investments are accelerating, while OT cybersecurity risk remains high and depends on timely patching.
Related reading
01 · Category
Market Size9 stats
Market Size Interpretation
02 · Category
Cost Analysis6 stats
Cost Analysis Interpretation
03 · Category
Industry Trends8 stats
Industry Trends Interpretation
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04 · Category
User Adoption5 stats
User Adoption Interpretation
05 · Category
Performance Metrics9 stats
Performance Metrics Interpretation
PLC & Industrial Automation Market Size and Growth Signals
Selected market-size and growth indicators for the PLC/automation ecosystem (cross-referenced years) along with regional share.
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Marcus Afolabi. (2026, February 13). Plc Industry Statistics. Gitnux. https://gitnux.org/plc-industry-statistics
Marcus Afolabi. "Plc Industry Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/plc-industry-statistics.
Marcus Afolabi. 2026. "Plc Industry Statistics." Gitnux. https://gitnux.org/plc-industry-statistics.
Sources & references
37 datasets cited across this report · attribution is report-level
+7 additional datasets cited (not shown individually)

