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AI Visibility Index · September 2026

Real estate agencies in Madrid that AI assistants recommend

We asked ChatGPT, Claude, Gemini and Grok the four questions a buyer asks when looking for real estate agencies in Madrid, three times each, in Spanish, and counted who they named. These are the businesses named in two or more of the 48 answers.

Check whether AI names youSee the ranking

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Real estate agencies · Madrid
94%of answers named Engel & Völkers
Answers
48
Businesses named
26
Named only once
5
Named by 2+ assistants
10 of 21
Named again on a rerun
69%

Edition September 2026. Download the data

Asked for real estate agencies in Madrid, ChatGPT, Claude, Gemini and Grok most often named Engel & Völkers (94% of answers), Gilmar (75%) and RE/MAX (40%). Across 48 answers they named 26 different businesses, 5 of them only once. Each of four buyer questions was asked three times, in Spanish, in September 2026.

The ranking

Share is the fraction of the 48 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Real estate agencies in Madrid named by AI assistants, September 2026
#BusinessShareChatGPTClaudeGeminiGrokQuestionsAvg. position
1Engel & VölkersAlso written Engel & Völkers Madrid94%95%: 83 to 98%92%100%100%83%4 of 42.2
2GilmarAlso written Gilmar Consulting Inmobiliario, Gilmar Real Estate, Gilmar Consulting Inmobiliario Madrid75%95%: 61 to 85%100%100%100%0%4 of 41.7
3RE/MAXAlso written RE/MAX España, RE/MAX Urbe, RE/MAX Rosales, RE/MAX Ability, RE/MAX Ability Madrid, RE/MAX Gestión Madrid40%95%: 27 to 54%50%42%8%58%4 of 43.1
4TecnocasaAlso written Tecnocasa Madrid40%95%: 27 to 54%25%25%75%33%4 of 44.2
5aPropertiesAlso written aProperties Madrid, aProperties Real Estate Madrid29%95%: 18 to 43%58%58%0%0%4 of 43.1
6DonpisoAlso written Don Piso21%95%: 12 to 34%0%0%75%8%4 of 43.9
7Alquiler SeguroAlso written Alquiler Seguro Madrid19%95%: 10 to 32%25%25%25%0%1 of 42.3
8Alfa InmobiliariaAlso written Alfa Inmobiliaria Madrid13%95%: 6 to 25%25%25%0%0%3 of 44.5
9Look & Find13%95%: 6 to 25%0%0%50%0%2 of 45.2
10Century 21Also written Century 21 España10%95%: 5 to 22%0%0%0%42%3 of 42.8
11Lucas Fox Madrid10%95%: 5 to 22%33%8%0%0%3 of 42.8
12SavillsAlso written Savills Madrid10%95%: 5 to 22%0%0%0%42%2 of 43.4
13Knight Frank Madrid8%95%: 3 to 20%0%0%0%33%2 of 42
14Housell6%95%: 2 to 17%0%0%25%0%1 of 43.3
15Inmobiliaria Encuentro6%95%: 2 to 17%0%0%25%0%2 of 44.7
16Redpiso6%95%: 2 to 17%8%17%0%0%3 of 44.7
17Idealista4%95%: 1 to 14%0%0%17%0%1 of 41
18Fotocasa4%95%: 1 to 14%0%0%17%0%1 of 42
19Vivienda24%95%: 1 to 14%17%0%0%0%2 of 43
20Habitaclia4%95%: 1 to 14%0%0%17%0%1 of 45
21Inmobiliaria Barrio4%95%: 1 to 14%0%0%17%0%2 of 45.5

Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 5 more names came up in a single answer and are counted above but not listed.

What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#ChatGPTClaudeGeminiGrok
1Gilmar100%Engel & Völkers100%Engel & Völkers100%Engel & Völkers83%
2Engel & Völkers92%Gilmar100%Gilmar100%RE/MAX58%
3aProperties58%aProperties58%Tecnocasa75%Century 2142%
4RE/MAX50%RE/MAX42%Donpiso75%Savills42%
5Lucas Fox Madrid33%Tecnocasa25%Look & Find50%Tecnocasa33%

Grok named no business in 2 of its 12 answers.

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Correct or remove a listing
Named by AI assistants: Real estate agencies in Madrid, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/real-estate-agencies/madrid"><img src="https://aigrow.gg/badges/index/2026-09/real-estate-agencies/madrid.svg" width="312" height="100" alt="Named by AI assistants: Real estate agencies in Madrid, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant through its API, in Spanish. The English under each is our translation. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

  1. 1¿Cuál es la mejor inmobiliaria de Madrid?Who is the best real estate agency in Madrid?
  2. 2Quiero vender mi piso en Madrid. ¿Qué inmobiliaria me recomiendas?I want to sell my home in Madrid. Which real estate agency would you recommend?
  3. 3Busco un piso para comprar en Madrid. ¿Con qué inmobiliarias debería contactar?I'm looking for an apartment to buy in Madrid. Which real estate agents should I contact?
  4. 4¿Qué inmobiliaria de Madrid recomendarías para alquilar un piso?Which real estate agency in Madrid would you recommend for renting out an apartment?

How to read this page

The full method
What it measures
Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter
48 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings
Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong
If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.

Elsewhere in the Index

Real estate agencies elsewhere
BarcelonaAustinBerlinBirminghamBostonBrisbane
Also in Madrid
DentistsLawyersAccountantsPlumbersGyms

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Edition September 2026 · data under CC BY 4.0