Visibility index · Spain
Gas suppliers
18 AI answers to 5 prompts name 12 brands. Naturgy leads with 16.2% of mentions; the top 3 hold 41.4%.
Level 3n = 18 answers5 promptsupdated Oct 19, 2026AI Mode5ChatGPT3AI Overviews5Gemini5
AI answers
18
5 prompts
Last run Oct 19, 2026
Brands seen
12
Top 3 hold 41.4%
n = 18 answers
Concentration
Fragmented
HHI 1,042 · leader 16.2%
Leader
Naturgy
16.2% of mentions
Avg. position #3.0
Top engine
AI Mode
27.8% of answers
4 engines sampled
Sources cited
86
Top: ocu.org 12.8%
n = 18 answers
What AI answers show
Brands and sources in the sampled answers
n = 18 answers5 promptsOct 19, 2026
Brands AI recommends
Share of brand mentions in Gas suppliers answers
- 1Naturgyavg. #3.016.2%16
- 2Endesaavg. #5.713.1%13
- 3Iberdrolaavg. #4.212.1%12
- 4TotalEnergiesavg. #5.011.1%11
- 5Plenitudeavg. #3.49.1%9
n = 18 answers12 brands seen in total
Market concentrationFragmented
FragmentedModerateConcentrated
HHI 1,042Leader 16.2%Top 3 41.4%
Fragmented: no brand dominates. The top 3 hold 41.4% of mentions; the leader 16.2%.
Answers behind the ranking
Every engine sampled
- Google AI Mode5
- ChatGPT3
- AI Overviews5
- Gemini5