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AI Visibility Index · September 2026

Accountants in Rome that AI assistants recommend

We asked ChatGPT, Claude, Gemini and Grok the four questions a buyer asks when looking for accountants in Rome, three times each, in Italian, 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.

Accountants · Rome
27%of answers named Pirola Pennuto Zei & Associati
Answers
48
Businesses named
80
Named only once
65
Named by 2+ assistants
8 of 15
Named again on a rerun
20%

Edition September 2026. Download the data

Asked for accountants in Rome, ChatGPT, Claude, Gemini and Grok most often named Pirola Pennuto Zei & Associati (27% of answers), Deloitte (19%) and Biscozzi Nobili Piazza (19%). Across 48 answers they named 80 different businesses, 65 of them only once. Each of four buyer questions was asked three times, in Italian, 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.

Accountants in Rome named by AI assistants, September 2026
#BusinessShareChatGPTClaudeGeminiGrokQuestionsAvg. position
1Pirola Pennuto Zei & AssociatiAlso written Studio Pirola Pennuto Zei & Associati, Studio Commerciale Associato Pirola Pennuto Zei & Associati, Studio Pirola Pennuto Zei & Associati – Roma, Pirola Pennuto Zei & Associati – Roma, Studio Associato Tributario e Societario Pirola Pennuto Zei & Associati27%95%: 17 to 41%58%50%0%0%4 of 41.7
2DeloitteAlso written Studio Tributario e Societario Deloitte, Studio Tributario e Societario Deloitte Società tra Professionisti S.r.l.19%95%: 10 to 32%8%0%67%0%3 of 41.2
3Biscozzi Nobili PiazzaAlso written Studio Biscozzi Nobili Piazza, Studio Tributario e Societario Biscozzi Nobili Piazza, Studio Legale e Tributario Biscozzi Nobili Piazza, Studio Legale Tributario Biscozzi Nobili & Partners, Studio Legale Tributario Biscozzi Nobili Piazza, Studio Tributario e Societario Biscozzi Nobili Piazza Roma19%95%: 10 to 32%33%42%0%0%3 of 42.1
4NexumStpAlso written NexumStp S.p.A., NexumStp S.p.A. – Roma15%95%: 7 to 27%33%25%0%0%3 of 42.6
5Studio Associato Consulenza Aziendale13%95%: 6 to 25%0%0%50%0%2 of 42.5
6Studio Legale e Tributario EY10%95%: 5 to 22%0%0%42%0%2 of 42.8
7Baker TillyAlso written Baker Tilly Revisa S.p.A., Baker Tilly Italia – Studio Associato Commercialisti6%95%: 2 to 17%8%17%0%0%2 of 42.3
8Studio BNCAlso written Studio Associato BNC, Studio Associato Commercialisti Roma - Studio BNC6%95%: 2 to 17%0%0%25%0%3 of 43.7
9Studio Commercialista Dott. Marco RossiAlso written Studio Commercialista Roma Centro - Dott. Marco Rossi, Studio Commercialista - Dott. Marco Rossi6%95%: 2 to 17%0%0%25%0%2 of 44.7
10Studio Commercialista Dott.ssa Silvia PirasAlso written Studio Commercialista Roma - Dott.ssa Silvia Piras, Studio Commercialisti Roma - Dott.ssa Silvia Piras4%95%: 1 to 14%0%0%17%0%2 of 41.5
11Studio Commercialista Dott.ssa Maria Grazia CacciolaAlso written Studio Commercialista Roma - Dott.ssa Maria Grazia Cacciola4%95%: 1 to 14%0%0%17%0%1 of 42.5
12Studio Commercialisti Associati – RomaAlso written Studio Commercialisti Associati - Roma4%95%: 1 to 14%8%0%8%0%1 of 42.5
13Studio De Luca & PartnersAlso written Studio Associato De Luca & Partners4%95%: 1 to 14%8%0%8%0%2 of 42.5
14PwC TLSAlso written PwC Italia – Roma, PwC TLS Avvocati e Commercialisti4%95%: 1 to 14%8%8%0%0%1 of 43
15Studio Commercialista Dott.ssa Maria Grazia De AngelisAlso written Studio Commercialista e Tributario - Dott.ssa Maria Grazia De Angelis4%95%: 1 to 14%0%0%17%0%2 of 43.5

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. 65 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
1Pirola Pennuto Zei & Associati58%Pirola Pennuto Zei & Associati50%Deloitte67%Named no business
2Biscozzi Nobili Piazza33%Biscozzi Nobili Piazza42%Studio Associato Consulenza Aziendale50%
3NexumStp33%NexumStp25%Studio Legale e Tributario EY42%
4Deloitte8%Baker Tilly17%Studio BNC25%
5Baker Tilly8%PwC TLS8%Studio Commercialista Dott. Marco Rossi25%

Grok named no business in any 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: Accountants in Rome, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/accountants/rome"><img src="https://aigrow.gg/badges/index/2026-09/accountants/rome.svg" width="312" height="100" alt="Named by AI assistants: Accountants in Rome, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant through its API, in Italian. 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. 1Chi è il miglior commercialista a Roma?Who is the best accountant in Rome?
  2. 2Ho una piccola impresa a Roma. Quale studio di commercialisti mi consigli?I run a small business in Rome. Which accounting firm would you recommend?
  3. 3Ho la partita IVA e cerco un commercialista a Roma per la dichiarazione dei redditi. Chi mi consigli?I'm self-employed and need an accountant in Rome for my tax return. Who would you recommend?
  4. 4Quale studio di contabilità a Roma consiglieresti a una piccola azienda?Which bookkeeping service in Rome would you recommend for a small company?

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

Accountants elsewhere
MilanTurinVeronaAarhusAmsterdamAntwerp
Also in Rome
DentistsLawyersPlumbersGymsReal estate agencies

Is your business on this list?

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Edition September 2026 · data under CC BY 4.0