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AI Visibility Index · September 2026

Lawyers in São Paulo that AI assistants recommend

We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for lawyers in São Paulo, three times each, in Portuguese, and counted who they named. These are the businesses named in two or more of the 36 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.

Lawyers · São Paulo
44%of answers named TozziniFreire Advogados
Answers
36
Businesses named
63
Named only once
38
Named by 2+ assistants
10 of 25
Named again on a rerun
48%

Edition September 2026. Download the data

Asked for lawyers in São Paulo, ChatGPT, Claude and Gemini most often named TozziniFreire Advogados (44% of answers), Mattos Filho (42%) and Demarest Advogados (42%). Across 36 answers they named 63 different businesses, 38 of them only once. Each of four buyer questions was asked three times, in Portuguese, in September 2026.

The ranking

The AI Recommendation Rate is the fraction of the 36 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.

Lawyers in São Paulo named by AI assistants, September 2026
#BusinessAI Recommendation RateChatGPTClaudeGeminiQuestionsAvg. position
1TozziniFreire AdvogadosIs this your business?44%95%: 30 to 60%50%25%58%3 of 42.7
2Mattos FilhoAlso written Mattos Filho Advogados, Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga AdvogadosIs this your business?42%95%: 27 to 58%25%25%75%3 of 42.6
3Demarest AdvogadosIs this your business?42%95%: 27 to 58%50%25%50%2 of 43.4
4Pinheiro Neto AdvogadosIs this your business?39%95%: 25 to 55%33%25%58%3 of 41.6
5Machado Meyer AdvogadosIs this your business?28%95%: 16 to 44%17%25%42%2 of 44.9
6Veirano AdvogadosIs this your business?14%95%: 6 to 29%0%0%42%2 of 45.6
7Lefosse AdvogadosIs this your business?14%95%: 6 to 29%8%8%25%2 of 46.2
8Damiani Sociedade de AdvogadosIs this your business?8%95%: 3 to 22%0%0%25%1 of 41
9Galvão & Silva AdvocaciaIs this your business?8%95%: 3 to 22%8%17%0%1 of 41
10Wald, Antunes, Vita, Longo e Blattner AdvogadosIs this your business?8%95%: 3 to 22%0%0%25%1 of 41
11Moraes Pitombo AdvogadosIs this your business?8%95%: 3 to 22%8%0%17%1 of 43
12Mendes & Associados AdvocaciaIs this your business?8%95%: 3 to 22%0%0%25%1 of 43.3
13Brito & AssociadosAlso written Brito & Advogados Associados, Brito & Associados AdvocaciaIs this your business?8%95%: 3 to 22%0%0%25%1 of 44.3
14Lobo de Rizzo AdvogadosIs this your business?8%95%: 3 to 22%0%0%25%1 of 44.3
15Chaves Advocacia FamiliarIs this your business?6%95%: 2 to 18%0%17%0%1 of 41
16Lopes & Giorno AdvogadosIs this your business?6%95%: 2 to 18%0%0%17%1 of 42
17Azevedo Sette AdvogadosIs this your business?6%95%: 2 to 18%0%17%0%1 of 42.5
18Migalhas AdvocaciaIs this your business?6%95%: 2 to 18%17%0%0%2 of 42.5
19Migalhas de Peso Advocacia de FamíliaIs this your business?6%95%: 2 to 18%0%17%0%1 of 42.5
20Rücker Curi Advocacia e Consultoria JurídicaIs this your business?6%95%: 2 to 18%0%17%0%1 of 42.5
21Viseu AdvogadosIs this your business?6%95%: 2 to 18%0%17%0%2 of 43.5
22FAS AdvogadosIs this your business?6%95%: 2 to 18%0%17%0%1 of 44
23SiqueiraCastroAlso written SiqueiraCastro AdvogadosIs this your business?6%95%: 2 to 18%0%8%8%1 of 44
24Dias Carneiro AdvogadosIs this your business?6%95%: 2 to 18%0%8%8%2 of 46
25BMA AdvogadosIs this your business?6%95%: 2 to 18%0%0%17%1 of 46.5

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. 38 more names came up in a single answer and are counted above but not listed.

Is this your business?

See what the assistants say about your business today. The free checker asks ChatGPT, Claude, Gemini and Grok two of the Index questions for this category, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up.

Check your businessNamed above? Add the badgeWhat the audit does

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.

#ChatGPTClaudeGemini
1TozziniFreire Advogados50%TozziniFreire Advogados25%Mattos Filho75%
2Demarest Advogados50%Mattos Filho25%TozziniFreire Advogados58%
3Pinheiro Neto Advogados33%Demarest Advogados25%Pinheiro Neto Advogados58%
4Mattos Filho25%Pinheiro Neto Advogados25%Demarest Advogados50%
5Machado Meyer Advogados17%Machado Meyer Advogados25%Machado Meyer Advogados42%

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: Lawyers in São Paulo, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/lawyers/sao-paulo"><img src="https://aigrow.gg/badges/index/2026-09/lawyers/sao-paulo.svg" width="312" height="100" alt="Named by AI assistants: Lawyers in São Paulo, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant, in Portuguese. 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. 1Qual é o melhor advogado em São Paulo?Who is the best lawyer in São Paulo?
  2. 2Estou me divorciando em São Paulo. Qual advogado de família você recomenda?I'm getting divorced in São Paulo. Which family lawyer would you recommend?
  3. 3Fiquei ferido em um acidente de carro em São Paulo. Qual advogado especializado em acidentes de trânsito devo procurar?I was injured in a car accident in São Paulo. Which personal injury lawyer should I call?
  4. 4Qual escritório de advocacia em São Paulo você recomendaria para uma pequena empresa?Which law firm in São Paulo would you recommend for a small business?

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
36 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

Lawyers elsewhere
Belo HorizonteRio de JaneiroLisbonPortoAarhusAmsterdam
Also in São Paulo
DentistsAccountantsPlumbersGymsReal estate agenciesRestaurants

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.

Run the free AI scanRead the method

Edition September 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0