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AI Visibility Index · September 2026

Lawyers in Basel that AI assistants recommend

We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for lawyers in Basel, three times each, in German, 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 · Basel
75%of answers named VISCHER
Answers
36
Businesses named
51
Named only once
36
Named by 2+ assistants
8 of 15
Named again on a rerun
41%

Edition September 2026. Download the data

Asked for lawyers in Basel, ChatGPT, Claude and Gemini most often named VISCHER (75% of answers), Wenger Plattner (47%) and Kellerhals Carrard (42%). Across 36 answers they named 51 different businesses, 36 of them only once. Each of four buyer questions was asked three times, in German, 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 Basel named by AI assistants, September 2026
#BusinessAI Recommendation RateChatGPTClaudeGeminiQuestionsAvg. position
1VISCHERAlso written VISCHER AG, Vischer AG, VISCHER AG, Basel, Advokatur & Notariat Vischer AG, Basel, VISCHER AG – Standort Basel, VISCHER AG BaselIs this your business?75%95%: 59 to 86%75%75%75%4 of 41.9
2Wenger PlattnerAlso written Advokatur & Notariat Wenger Plattner, Wenger Plattner Rechtsanwälte, Advokatur und Notariat Wenger PlattnerIs this your business?47%95%: 32 to 63%8%33%100%4 of 42.5
3Kellerhals CarrardAlso written Kellerhals Carrard Basel KlG, Kellerhals Carrard Basel, Kellerhals Carrard, BaselIs this your business?42%95%: 27 to 58%50%50%25%4 of 43.1
4Baur Hürlimann AGIs this your business?36%95%: 23 to 52%17%8%83%4 of 43.6
5Wenger VieliAlso written Wenger Vieli AG, Advokatur & Notariat Wenger Vieli AG, Kanzlei Wenger Vieli AG, Wenger Vieli AG – Standort Basel, Wenger Vieli AG, BaselIs this your business?22%95%: 12 to 38%50%17%0%4 of 42.1
6Walder WyssAlso written Walder Wyss AGIs this your business?19%95%: 10 to 35%17%33%8%2 of 43
7Bär & Karrer AGIs this your business?17%95%: 8 to 32%17%25%8%2 of 42.8
8Kanzlei am SpiegelhofAlso written Advokatur am SpiegelhofIs this your business?11%95%: 4 to 25%0%0%33%2 of 42.5
9Kanzlei am KohlenbergIs this your business?11%95%: 4 to 25%0%0%33%3 of 42.8
10Thurneysen & PartnerAlso written Advokatur & Notariat Thurneysen & Partner, Advokatur und Notariat Thurneysen & PartnerIs this your business?6%95%: 2 to 18%17%0%0%2 of 41.5
11Advokatur KanonengasseAlso written Advokatur Kanonengasse BaselIs this your business?6%95%: 2 to 18%8%0%8%2 of 42.5
12Lenz & CaemmererIs this your business?6%95%: 2 to 18%17%0%0%2 of 42.5
13Advokatur am FischmarktIs this your business?6%95%: 2 to 18%0%17%0%1 of 43
14Liatowitsch & PartnerIs this your business?6%95%: 2 to 18%0%17%0%1 of 43
15Lenz & StaehelinIs this your business?6%95%: 2 to 18%0%17%0%1 of 44

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. 36 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
1VISCHER75%VISCHER75%Wenger Plattner100%
2Kellerhals Carrard50%Kellerhals Carrard50%Baur Hürlimann AG83%
3Wenger Vieli50%Wenger Plattner33%VISCHER75%
4Baur Hürlimann AG17%Walder Wyss33%Kanzlei am Spiegelhof33%
5Walder Wyss17%Bär & Karrer AG25%Kanzlei am Kohlenberg33%

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

The questions

Asked word for word, three times each, to every assistant, in German. 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. 1Wer ist der beste Anwalt in Basel?Who is the best lawyer in Basel?
  2. 2Ich lasse mich in Basel scheiden. Welchen Anwalt für Familienrecht empfiehlst du?I'm getting divorced in Basel. Which family lawyer would you recommend?
  3. 3Ich wurde bei einem Verkehrsunfall in Basel verletzt. An welchen Anwalt sollte ich mich wegen Schadenersatz wenden?I was injured in a car accident in Basel. Which personal injury lawyer should I call?
  4. 4Welche Kanzlei in Basel würdest du einem kleinen Unternehmen empfehlen?Which law firm in Basel 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.

Where the assistants look

The sites read most often, with web search on, before the assistants answer about this category in Switzerland. From the AI Source Map: 7 answers.

See every site for this category
wikipedia.org
Read in 86% of the answers
chambers.com
Read in 71% of the answers
reddit.com
Read in 71% of the answers

Elsewhere in the Index

Lawyers elsewhere
BernGenevaLausanneLuganoZurichBerlin
Also in Basel
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