Real estate agencies in Barcelona that AI assistants recommend
We asked ChatGPT, Claude, Gemini and Grok the four questions a buyer asks when looking for real estate agencies in Barcelona, three times each, in Spanish, and counted who they named. These are the businesses named in two or more of the 48 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 48
- Businesses named
- 24
- Named only once
- 11
- Named by 2+ assistants
- 7 of 13
- Named again on a rerun
- 62%
Edition September 2026. Download the data
Asked for real estate agencies in Barcelona, ChatGPT, Claude, Gemini and Grok most often named Engel & Völkers (85% of answers), Lucas Fox (69%) and aProperties (65%). Across 48 answers they named 24 different businesses, 11 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.
| # | Business | Share | ChatGPT | Claude | Gemini | Grok | Questions | Avg. position |
|---|---|---|---|---|---|---|---|---|
| 1 | Engel & VölkersAlso written Engel & Völkers Barcelona | 95%: 73 to 93% | 100% | 100% | 100% | 42% | 4 of 4 | 2.2 |
| 2 | Lucas FoxAlso written Lucas Fox Barcelona, LUCAS FOX Barcelona | 95%: 55 to 80% | 83% | 83% | 83% | 25% | 4 of 4 | 1.7 |
| 3 | aPropertiesAlso written aProperties Real Estate Barcelona, aProperties Barcelona, Aproperties Real Estate Barcelona | 95%: 50 to 77% | 100% | 83% | 75% | 0% | 4 of 4 | 2.4 |
| 4 | Coldwell BankerAlso written Coldwell Banker Prestige Barcelona, Coldwell Banker Prestige Real Estate, Coldwell Banker España, Coldwell Banker Spain, Coldwell Banker España & Andorra — Barcelona | 95%: 18 to 43% | 17% | 25% | 75% | 0% | 3 of 4 | 5.1 |
| 5 | Bcn AdvisorsAlso written BCN Advisors | 95%: 17 to 41% | 67% | 42% | 0% | 0% | 4 of 4 | 3.6 |
| 6 | Amat ImmobiliarisAlso written Amat Inmobiliaria | 95%: 12 to 34% | 0% | 0% | 83% | 0% | 4 of 4 | 3.9 |
| 7 | Vivendex | 95%: 10 to 32% | 0% | 0% | 75% | 0% | 4 of 4 | 4.9 |
| 8 | ShBarcelona | 95%: 9 to 30% | 25% | 17% | 25% | 0% | 1 of 4 | 2 |
| 9 | ForcadellAlso written Fincas Forcadell | 95%: 9 to 30% | 0% | 0% | 67% | 0% | 3 of 4 | 5.5 |
| 10 | Tecnocasa Barcelona | 95%: 3 to 20% | 8% | 25% | 0% | 0% | 2 of 4 | 4.3 |
| 11 | Knight Frank Barcelona | 95%: 2 to 17% | 0% | 0% | 0% | 25% | 2 of 4 | 3 |
| 12 | Donpiso | 95%: 2 to 17% | 0% | 0% | 25% | 0% | 1 of 4 | 5 |
| 13 | RE/MAXAlso written Remax Barcelona | 95%: 1 to 14% | 0% | 0% | 0% | 17% | 2 of 4 | 3 |
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. 11 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.
| # | ChatGPT | Claude | Gemini | Grok |
|---|---|---|---|---|
| 1 | Engel & Völkers100% | Engel & Völkers100% | Engel & Völkers100% | Engel & Völkers42% |
| 2 | aProperties100% | Lucas Fox83% | Lucas Fox83% | Lucas Fox25% |
| 3 | Lucas Fox83% | aProperties83% | Amat Immobiliaris83% | Knight Frank Barcelona25% |
| 4 | Bcn Advisors67% | Bcn Advisors42% | aProperties75% | RE/MAX17% |
| 5 | ShBarcelona25% | Coldwell Banker25% | Coldwell Banker75% | No other name twice |
Grok named no business in 7 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.
<a href="https://aigrow.gg/index/real-estate-agencies/barcelona"><img src="https://aigrow.gg/badges/index/2026-09/real-estate-agencies/barcelona.svg" width="312" height="100" alt="Named by AI assistants: Real estate agencies in Barcelona, 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¿Cuál es la mejor inmobiliaria de Barcelona?Who is the best real estate agency in Barcelona?
- 2Quiero vender mi piso en Barcelona. ¿Qué inmobiliaria me recomiendas?I want to sell my home in Barcelona. Which real estate agency would you recommend?
- 3Busco un piso para comprar en Barcelona. ¿Con qué inmobiliarias debería contactar?I'm looking for an apartment to buy in Barcelona. Which real estate agents should I contact?
- 4¿Qué inmobiliaria de Barcelona recomendarías para alquilar un piso?Which real estate agency in Barcelona would you recommend for renting out an apartment?
How to read this page
- 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.
Is your business on this list?
The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.
Edition September 2026 · data under CC BY 4.0