Digital marketing agencies in Brussels that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for digital marketing agencies in Brussels, three times each, in French, and counted who they named. These are the businesses named in two or more of the 36 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 36
- Businesses named
- 57
- Named only once
- 33
- Named by 2+ assistants
- 5 of 24
- Named again on a rerun
- 36%
Edition September 2026. Download the data
Asked for digital marketing agencies in Brussels, ChatGPT, Claude and Gemini most often named Semetis (53% of answers), Universem (19%) and DigiPoint (17%). Across 36 answers they named 57 different businesses, 33 of them only once. Each of four buyer questions was asked three times, in French, 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.
| # | Business | AI Recommendation Rate | ChatGPT | Claude | Gemini | Questions | Avg. position |
|---|---|---|---|---|---|---|---|
| 1 | SemetisIs this your business? | 95%: 37 to 68% | 67% | 17% | 75% | 3 of 4 | 1.6 |
| 2 | UniversemIs this your business? | 95%: 10 to 35% | 58% | 0% | 0% | 4 of 4 | 1.7 |
| 3 | DigiPointIs this your business? | 95%: 8 to 32% | 0% | 0% | 50% | 4 of 4 | 3.7 |
| 4 | Base DesignIs this your business? | 95%: 8 to 32% | 0% | 0% | 50% | 3 of 4 | 3.8 |
| 5 | EmakinaIs this your business? | 95%: 6 to 29% | 8% | 25% | 8% | 2 of 4 | 3.4 |
| 6 | WhelloIs this your business? | 95%: 6 to 29% | 0% | 0% | 42% | 2 of 4 | 3.4 |
| 7 | Ogilvy Social.LabAlso written Social.Lab, Social LabIs this your business? | 95%: 4 to 25% | 17% | 0% | 17% | 2 of 4 | 1.3 |
| 8 | iOIs this your business? | 95%: 4 to 25% | 33% | 0% | 0% | 2 of 4 | 2.3 |
| 9 | blue2purpleAlso written Blue2PurpleIs this your business? | 95%: 4 to 25% | 25% | 0% | 8% | 3 of 4 | 3.3 |
| 10 | GrowthRoomIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 1 of 4 | 1.7 |
| 11 | BoondoggleIs this your business? | 95%: 3 to 22% | 0% | 25% | 0% | 2 of 4 | 2 |
| 12 | ClicktrustAlso written ClickTrustIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 1 of 4 | 2.3 |
| 13 | WijsIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 1 of 4 | 3 |
| 14 | PropagandaIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 1 of 4 | 3.3 |
| 15 | Duke & GraceIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 2 of 4 | 3.7 |
| 16 | Wunderman Thompson BelgiumIs this your business? | 95%: 3 to 22% | 8% | 17% | 0% | 1 of 4 | 3.7 |
| 17 | DigimediaIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 2 of 4 | 2 |
| 18 | iProspect BelgiumIs this your business? | 95%: 2 to 18% | 17% | 0% | 0% | 2 of 4 | 2 |
| 19 | Wide AgencyAlso written WideIs this your business? | 95%: 2 to 18% | 0% | 17% | 0% | 1 of 4 | 2 |
| 20 | BeInfluenceIs this your business? | 95%: 2 to 18% | 17% | 0% | 0% | 1 of 4 | 2.5 |
| 21 | Digitas BelgiumIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 2 of 4 | 3 |
| 22 | Expand OnlineIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 1 of 4 | 3 |
| 23 | The House of MarketingIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 1 of 4 | 3.5 |
| 24 | ProphetsIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 1 of 4 | 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. 33 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.
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 | Gemini |
|---|---|---|---|
| 1 | Semetis67% | Emakina25% | Semetis75% |
| 2 | Universem58% | Boondoggle25% | DigiPoint50% |
| 3 | iO33% | Semetis17% | Base Design50% |
| 4 | blue2purple25% | Wunderman Thompson Belgium17% | Whello42% |
| 5 | Ogilvy Social.Lab17% | Wide Agency17% | GrowthRoom25% |
Claude named no business in 6 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.
<a href="https://aigrow.gg/index/marketing-agencies/brussels"><img src="https://aigrow.gg/badges/index/2026-09/marketing-agencies/brussels.svg" width="312" height="100" alt="Named by AI assistants: Digital marketing agencies in Brussels, AIGROW AI Visibility Index, September 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.
- 1Quelle est la meilleure agence de marketing digital à Bruxelles ?What is the best digital marketing agency in Brussels?
- 2Quelle agence de marketing me conseillerais-tu pour attirer plus de clients pour ma petite entreprise à Bruxelles ?I want more customers for my small business in Brussels. Which marketing agency would you recommend?
- 3Quelle agence à Bruxelles est douée en référencement naturel et en Google Ads ?Which agency in Brussels is good at SEO and Google Ads?
- 4Quelle agence à Bruxelles me conseillerais-tu pour le marketing sur les réseaux sociaux ?Which social media marketing agency in Brussels would you recommend?
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.
- sortlist.be
- Read in 80% of the answers
- reddit.com
- Read in 80% of the answers
- wikipedia.org
- Read in 80% of the answers
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 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0