Accountants in Brussels that AI assistants recommend

Vandelanotte is named most, in 42% of 36 answers.

Accountants in Brussels named by AI assistants, November 2026

  1. 1Vandelanotte42%

    95%: 27 to 58%

    ChatGPT
    58%
    Claude
    42%
    Gemini
    25%
    Questions
    4 of 4
    Avg. position
    3.3

    Named in answers to

    • Who is the best accountant in Brussels?, from Claude and Gemini
    • I run a small business in Brussels. Which accounting firm would you recommend?, from ChatGPT
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from ChatGPT and Claude
    • Which bookkeeping service in Brussels would you recommend for a small company?, from ChatGPT and Claude

    Also written Vandelanotte Bruxelles

    Is this your business?
  2. 2Accountable36%

    95%: 23 to 52%

    ChatGPT
    50%
    Claude
    0%
    Gemini
    58%
    Questions
    3 of 4
    Avg. position
    1.6

    Named in answers to

    • I run a small business in Brussels. Which accounting firm would you recommend?, from Gemini
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from ChatGPT and Gemini
    • Which bookkeeping service in Brussels would you recommend for a small company?, from ChatGPT and Gemini
    Is this your business?
  3. 3BDO36%

    95%: 23 to 52%

    ChatGPT
    75%
    Claude
    33%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    3.5

    Named in answers to

    • Who is the best accountant in Brussels?, from ChatGPT and Claude
    • I run a small business in Brussels. Which accounting firm would you recommend?, from ChatGPT
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from ChatGPT and Claude
    • Which bookkeeping service in Brussels would you recommend for a small company?, from ChatGPT

    Also written BDO Belgium, BDO Belgique, BDO Bruxelles

    Is this your business?
  4. 4SBB Accountants & Adviseurs33%

    95%: 20 to 50%

    ChatGPT
    50%
    Claude
    50%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    2.4

    Named in answers to

    • I run a small business in Brussels. Which accounting firm would you recommend?, from ChatGPT and Claude
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from Claude
    • Which bookkeeping service in Brussels would you recommend for a small company?, from ChatGPT and Claude

    Also written SBB, SBB Bruxelles, SBB Comptabilité

    Is this your business?
  5. 5Fiduciaire de Bruxelles28%

    95%: 16 to 44%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    83%
    Questions
    4 of 4
    Avg. position
    2.2

    Named in answers to

    • Who is the best accountant in Brussels?, from Gemini
    • I run a small business in Brussels. Which accounting firm would you recommend?, from Gemini
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from Gemini
    • Which bookkeeping service in Brussels would you recommend for a small company?, from Gemini
    Is this your business?
  6. 6Liantis25%

    95%: 14 to 41%

    ChatGPT
    0%
    Claude
    75%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    1.9

    Named in answers to

    • Who is the best accountant in Brussels?, from Claude
    • I run a small business in Brussels. Which accounting firm would you recommend?, from Claude
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from Claude
    • Which bookkeeping service in Brussels would you recommend for a small company?, from Claude
    Is this your business?
  7. 7Deloitte22%

    95%: 12 to 38%

    ChatGPT
    25%
    Claude
    42%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2.6

    Named in answers to

    • Who is the best accountant in Brussels?, from ChatGPT and Claude
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from Claude

    Also written Deloitte Belgium, Deloitte Belgique, Deloitte Fiscalité Belgique, Deloitte Private Brussels

    Is this your business?
  8. 8Titeca Pro Accountants & Experts19%

    95%: 10 to 35%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    58%
    Questions
    4 of 4
    Avg. position
    1.9

    Named in answers to

    • Who is the best accountant in Brussels?, from Gemini
    • I run a small business in Brussels. Which accounting firm would you recommend?, from Gemini
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from Gemini
    • Which bookkeeping service in Brussels would you recommend for a small company?, from Gemini

    Also written Titeca Accountancy, Titeca Pro Accountants & Advisors

    Is this your business?
  9. 9Baker Tilly Belgium19%

    95%: 10 to 35%

    ChatGPT
    42%
    Claude
    0%
    Gemini
    17%
    Questions
    3 of 4
    Avg. position
    2

    Named in answers to

    • Who is the best accountant in Brussels?, from ChatGPT and Gemini
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from ChatGPT
    • Which bookkeeping service in Brussels would you recommend for a small company?, from ChatGPT
    Is this your business?
  10. 10PwC14%

    95%: 6 to 29%

    ChatGPT
    17%
    Claude
    25%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    3

    Named in answers to

    • Who is the best accountant in Brussels?, from ChatGPT and Claude

    Also written PwC Belgium, PwC Belgique

    Is this your business?
  11. 11KPMG14%

    95%: 6 to 29%

    ChatGPT
    17%
    Claude
    25%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    3.6

    Named in answers to

    • Who is the best accountant in Brussels?, from ChatGPT and Claude

    Also written KPMG Belgium, KPMG Belgique

    Is this your business?
  12. 12Securex11%

    95%: 4 to 25%

    ChatGPT
    0%
    Claude
    33%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    2.3

    Named in answers to

    • I run a small business in Brussels. Which accounting firm would you recommend?, from Claude
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from Claude
    • Which bookkeeping service in Brussels would you recommend for a small company?, from Claude
    Is this your business?
  13. 13Acerta11%

    95%: 4 to 25%

    ChatGPT
    0%
    Claude
    33%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    4.3

    Named in answers to

    • I run a small business in Brussels. Which accounting firm would you recommend?, from Claude
    • Which bookkeeping service in Brussels would you recommend for a small company?, from Claude
    Is this your business?
  14. 14Taxpatria8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    25%
    Questions
    2 of 4
    Avg. position
    2.3

    Named in answers to

    • I need someone to do my tax return in Brussels. Which accountant should I use?, from Gemini
    • Which bookkeeping service in Brussels would you recommend for a small company?, from Gemini
    Is this your business?
  15. 15Moore Belgium8%

    95%: 3 to 22%

    ChatGPT
    17%
    Claude
    8%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    3.7

    Named in answers to

    • I run a small business in Brussels. Which accounting firm would you recommend?, from ChatGPT
    • I need someone to do my tax return in Brussels. Which accountant should I use?, from Claude
    Is this your business?
  16. 16EY8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    4

    Named in answers to

    • Who is the best accountant in Brussels?, from Claude

    Also written EY Belgique, EY Belgium

    Is this your business?
  17. 17Group S6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2.5

    Named in answers to

    • I need someone to do my tax return in Brussels. Which accountant should I use?, from Claude
    • Which bookkeeping service in Brussels would you recommend for a small company?, from Claude

    Also written Group S - Fiscalité & Comptabilité

    Is this your business?
  18. 18RSM Belgium6%

    95%: 2 to 18%

    ChatGPT
    17%
    Claude
    0%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2.5

    Named in answers to

    • Who is the best accountant in Brussels?, from ChatGPT
    • I run a small business in Brussels. Which accounting firm would you recommend?, from ChatGPT
    Is this your business?
  19. 19Fiscopar6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    3.5

    Named in answers to

    • Which bookkeeping service in Brussels would you recommend for a small company?, from Claude
    Is this your business?
  20. 20Credo6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    4

    Named in answers to

    • I run a small business in Brussels. Which accounting firm would you recommend?, from Claude
    • Which bookkeeping service in Brussels would you recommend for a small company?, from Claude
    Is this your business?

Open a row to see each assistant's share of its 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. 22 more names came up in a single answer and are counted above but not listed.

Accountants in Brussels: is this your field?

42different names in 36 answers, 22 of them only once. The assistants change their minds from one answer to the next.

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How the AIGROW Score is measured

No business can pay to appear in the Index, rise in it or be removed from it. How the Index stays neutral

AI Visibility Index · November 2026

Asked about accountants in Brussels, ChatGPT, Claude and Gemini named Vandelanotte most often, in 42% of answers (its AI Recommendation Rate), then Accountable (36%) and BDO (36%). Across 36 answers they named 42 different businesses, 22 of them only once. Each of four buyer questions was asked three times, in French, in November 2026.

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.

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Accountants · Brussels

42% of answers named Vandelanotte

Answers
36
Businesses named
42
Named only once
22
Named by 2+ assistants
9 of 20
Named again on a rerun
56%

Edition November 2026. Download the data

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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
1BDO75%Liantis75%Fiduciaire de Bruxelles83%
2Vandelanotte58%SBB Accountants & Adviseurs50%Accountable58%
3Accountable50%Vandelanotte42%Titeca Pro Accountants & Experts58%
4SBB Accountants & Adviseurs50%Deloitte42%Vandelanotte25%
5Baker Tilly Belgium42%BDO33%Taxpatria25%

Questions about accountants in Brussels

ChatGPT, Claude and Gemini named Vandelanotte most often, in 42% of 36 answers, then Accountable (36%) and BDO (36%). The names come from what the assistants answered to four buyer questions in November 2026; we have not checked that any of them is good, open or real.

Not always. ChatGPT named BDO most often (75% of its answers), Claude Liantis (75%) and Gemini Fiduciaire de Bruxelles (83%). 9 of the 20 listed businesses were named by two or more of them.

Each question was asked three times. Of the names an assistant gave for a question, 56% came back in two or more of those runs; the rest came up once. The 95% range beside each rate in the ranking shows how far it could move by chance.

Run the free checker: it asks ChatGPT, Claude, Gemini and Grok two of the Index questions for accountants, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up. The page on how AI assistants recommend accountants shows what an owner can work on. Nothing can guarantee that an assistant names you.

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.

Named by AI assistants: Accountants in Brussels, AIGROW AI Visibility Index, November 2026
<a href="https://aigrow.gg/index/accountants/brussels"><img src="https://aigrow.gg/badges/index/2026-11/accountants/brussels.svg" width="312" height="100" alt="Named by AI assistants: Accountants in Brussels, AIGROW AI Visibility Index, November 2026"></a>

The questions

Asked word for word, three times each, to every assistant, 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.

  1. 1Quel est le meilleur expert-comptable à Bruxelles ?Who is the best accountant in Brussels?
  2. 2Je dirige une petite entreprise à Bruxelles. Quelle fiduciaire tu me recommandes ?I run a small business in Brussels. Which accounting firm would you recommend?
  3. 3J’ai besoin de quelqu’un pour faire ma déclaration fiscale à Bruxelles. Quel expert-comptable tu me conseilles ?I need someone to do my tax return in Brussels. Which accountant should I use?
  4. 4Quel service de tenue de comptabilité à Bruxelles tu recommandes pour une petite entreprise ?Which bookkeeping service in Brussels 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
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 Belgium. From the AI Source Map: 5 answers.

reddit.com
Read in 60% of the answers
trustlocal.be
Read in 40% of the answers
pagesdor.be
Read in 40% of the answers

AI Visibility Index

Not on this list? See what ChatGPT says about your business

Accountants, Brussels: see whether the assistants name you, or someone else.

Free, no account, no card. About a minute.

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