What LLMs cite
integrated PLC HMI software solutions comparison
From recent prompt runs · United States · Updated September 11, 2026
GEOGrow tested this high-intent customer question across Gemini, ChatGPT, and Perplexity. Rankings below show which companies appeared most often in those responses — not who is independently the best.
Top brand
Siemens AG
Leads across all key metrics
AI engines mentioning
2 of 3
Siemens AG appears in 2 of 3 AI engines
#1 recommendations
2
Siemens AG was the #1 recommendation twice.
AI answer share
67%
Siemens AG appears in 67% of answers in our tests
Top AI Answers
Which companies appear most often in AI responses?
Updated September 11, 2026
| # | Company | AI engines mentioning | #1 recommendations | AI answer share |
|---|---|---|---|---|
| 1 | Siemens AG Claim your company | 2 of 3 | 2 | 67% |
| 2 | Unitronics (Jazz, Vision, Unistream) Claim | 1 of 3 | 1 | 33% |
| 3 | Rockwell Automation (Allen-Bradley) Claim | 2 of 3 | 0 | 67% |
| 4 | Horner Electric (HE‑X / X2 Series) Claim | 1 of 3 | 0 | 33% |
| 5 | Schneider Electric Claim | 2 of 3 | 0 | 67% |
| 6 | Unitronics Claim | 1 of 3 | 0 | 33% |
| 7 | GE QuickPanel+ (Proficy Machine Edition) Claim | 1 of 3 | 0 | 33% |
| 8 | Pro-face Claim | 1 of 3 | 0 | 33% |
What Each AI Recommended
Recent answer snapshots by engine.
ChatGPT
- 1. Unitronics (Jazz, Vision, Unistream)
- 2. Horner Electric (HE‑X / X2 Series)
- 3. GE QuickPanel+ (Proficy Machine Edition)
- 4. Weintek cMT Series (with CODESYS)
- 5. Exor eSMART / JMobile (CODESYS)
- 6. EZ Automation ezTPC
+5 more in this answer
Gemini
- 1. Siemens AG
- 2. Rockwell Automation (Allen-Bradley)
- 3. Unitronics
- 4. Pro-face
- 5. CODESYS
- 6. Maple Systems
+3 more in this answer
Perplexity
What LLMs cite
Sources cited in the most recent prompt runs for this question. The mix varies by engine.
- industrialmonitordirect.com Integrated HMI PLC Combo Units: Technical Selection Guide
- plcprogramming.io Best HMI Software 2026: 8 Platforms Compared
- industrialmonitordirect.com PLC+HMI All-in-One Systems: Comparison & Selection Guide
- industrialmonitordirect.com Combined PLC and SCADA Software: Vendor Solutions Compared
- wifitalents.com Top 10 Best Plc Automation Software of 2026
- industrialmonitordirect.com HMI with Integrated I/O & Controller: Product Comparison Guide
- gozuk.com which HMIs are better? wincc, omron, delta, panel visa, lg?
- reddit.com Best HMI/PLC Combo for small projects? - Reddit
- reddit.com What are the best web based HMI solutions out there for small ...
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Markets move fast once AI patterns set in.
Who's Winning in AI?
AI Leaderboard · Based on this buyer question
Siemens AG currently leads this conversation. AI visibility leadership is valuable — but competitive markets shift fast.
Siemens AG currently leads this conversation.
- #1 Siemens AG 67%
- #2
- #3
- #4
- #5
- #6 Unitronics 33%
- #7
- #8 Pro-face 33%
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How We Measure AI Answer Share
AI Answer Tracker by GEOGrow measures how companies appear when high-intent customer questions are asked across supported AI platforms. Results are observational snapshots and can vary by model, location, personalization, source availability, and date.
AI Answer Share is weighted recommendation appearances divided by all possible recommendation opportunities. Rankings shown here represent the responses collected during the stated research period and are not endorsements by GEOGrow. Method: 3 independent AI observations.
- Question tested
- integrated PLC HMI software solutions comparison
- Market
- United States
- AI engines
- Gemini, ChatGPT, and Perplexity
- Research date
- September 11, 2026