Accountants in Lille that AI assistants recommend
We asked ChatGPT and Claude the four questions a buyer asks when looking for accountants in Lille, three times each, in French, and counted who they named. These are the businesses named in two or more of the 24 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 24
- Businesses named
- 15
- Named only once
- 8
- Named by 2+ assistants
- 6 of 7
- Named again on a rerun
- 60%
Edition September 2026. Download the data
Asked for accountants in Lille, ChatGPT and Claude most often named In Extenso Lille (100% of answers), KPMG Lille (92%) and Fiducial Expertise Lille (46%). Across 24 answers they named 15 different businesses, 8 of them only once. Each of four buyer questions was asked three times, in French, in September 2026.
The ranking
Share is the fraction of the 24 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 | Questions | Avg. position |
|---|---|---|---|---|---|---|
| 1 | In Extenso Lille | 95%: 86 to 100% | 100% | 100% | 4 of 4 | 1.9 |
| 2 | KPMG Lille | 95%: 74 to 98% | 100% | 83% | 4 of 4 | 2 |
| 3 | Fiducial Expertise LilleAlso written FIDUCIAL Expertise Lille | 95%: 28 to 65% | 42% | 50% | 3 of 4 | 3.2 |
| 4 | Deloitte Société d’Avocats LilleAlso written Deloitte Société d'Avocats Lille | 95%: 9 to 41% | 25% | 17% | 1 of 4 | 2 |
| 5 | Baker Tilly Lille | 95%: 9 to 41% | 25% | 17% | 2 of 4 | 2.6 |
| 6 | Cerfrance Nord - Pas-de-CalaisAlso written Cerfrance Nord - Pas de Calais, Cerfrance Nord – Pas-de-Calais, Cerfrance Nord-Pas de Calais | 95%: 9 to 41% | 8% | 33% | 3 of 4 | 2.8 |
| 7 | Deloitte Société d’Avocats et Expertise Comptable Lille | 95%: 2 to 26% | 17% | 0% | 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. 8 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 |
|---|---|---|
| 1 | In Extenso Lille100% | In Extenso Lille100% |
| 2 | KPMG Lille100% | KPMG Lille83% |
| 3 | Fiducial Expertise Lille42% | Fiducial Expertise Lille50% |
| 4 | Deloitte Société d’Avocats Lille25% | Cerfrance Nord - Pas-de-Calais33% |
| 5 | Baker Tilly Lille25% | Deloitte Société d’Avocats Lille17% |
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/accountants/lille"><img src="https://aigrow.gg/badges/index/2026-09/accountants/lille.svg" width="312" height="100" alt="Named by AI assistants: Accountants in Lille, AIGROW AI Visibility Index, September 2026"></a>The questions
Asked word for word, three times each, to every assistant through its API, in French. 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.
- 1Quel est le meilleur expert-comptable à Lille ?Who is the best expert-comptable in Lille?
- 2Je dirige une petite entreprise à Lille. Quel cabinet d’expertise comptable tu me recommandes ?I run a small business in Lille. Which accounting firm would you recommend?
- 3J’ai besoin de quelqu’un pour faire ma déclaration de revenus à Lille. Quel expert-comptable tu me conseilles ?I need someone to do my income tax return in Lille. Which expert-comptable should I use?
- 4Quel service de tenue de comptabilité à Lille tu recommandes pour une petite entreprise ?Which bookkeeping service in Lille would you recommend for a small company?
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
- 24 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