Cleaning services in Graz that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for cleaning services in Graz, three times each, in German, 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
- 28
- Named only once
- 14
- Named by 2+ assistants
- 3 of 14
- Named again on a rerun
- 52%
Edition September 2026. Download the data
Asked for cleaning services in Graz, ChatGPT, Claude and Gemini most often named Attensam (42% of answers), ISS Facility Services (39%) and SIMACEK (19%). Across 36 answers they named 28 different businesses, 14 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.
| # | Business | AI Recommendation Rate | ChatGPT | Claude | Gemini | Questions | Avg. position |
|---|---|---|---|---|---|---|---|
| 1 | AttensamAlso written Attensam GrazIs this your business? | 95%: 27 to 58% | 50% | 8% | 67% | 4 of 4 | 1.7 |
| 2 | ISS Facility ServicesAlso written ISS Facility Services GmbH, ISS Österreich, ISS Facility Services GrazIs this your business? | 95%: 25 to 55% | 67% | 0% | 50% | 3 of 4 | 1.9 |
| 3 | SIMACEKIs this your business? | 95%: 10 to 35% | 58% | 0% | 0% | 3 of 4 | 1.9 |
| 4 | BlitzblankAlso written Blitzblank Gebäudereinigung Graz, Blitzblank Graz, Blitzblank ReinigungsserviceIs this your business? | 95%: 8 to 32% | 0% | 0% | 50% | 2 of 4 | 1.7 |
| 5 | HelplingIs this your business? | 95%: 6 to 29% | 8% | 0% | 33% | 2 of 4 | 1.8 |
| 6 | Die Putzerei GrazIs this your business? | 95%: 6 to 29% | 0% | 0% | 42% | 2 of 4 | 3.2 |
| 7 | ExtraSauberIs this your business? | 95%: 4 to 25% | 33% | 0% | 0% | 2 of 4 | 1 |
| 8 | GegenbauerAlso written Gegenbauer Facility Management Graz, Gegenbauer Facility Management GmbHIs this your business? | 95%: 4 to 25% | 0% | 0% | 33% | 2 of 4 | 3.3 |
| 9 | Putzperle.atIs this your business? | 95%: 4 to 25% | 0% | 0% | 33% | 2 of 4 | 3.5 |
| 10 | Clean & Care GrazIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 1 of 4 | 2.3 |
| 11 | Dussmann Service ÖsterreichIs this your business? | 95%: 3 to 22% | 25% | 0% | 0% | 1 of 4 | 3 |
| 12 | Reinigungsservice GrazIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 2 of 4 | 5 |
| 13 | Reinigungsfirma GrazIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 2 of 4 | 4 |
| 14 | Clean & Service GrazIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 2 of 4 | 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. 14 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 | ISS Facility Services67% | Attensam8% | Attensam67% |
| 2 | SIMACEK58% | No other name twice | ISS Facility Services50% |
| 3 | Attensam50% | Blitzblank50% | |
| 4 | ExtraSauber33% | Die Putzerei Graz42% | |
| 5 | Dussmann Service Österreich25% | Helpling33% |
Claude named no business in 11 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/cleaning-services/graz"><img src="https://aigrow.gg/badges/index/2026-09/cleaning-services/graz.svg" width="312" height="100" alt="Named by AI assistants: Cleaning services in Graz, 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.
- 1Welche Reinigungsfirma in Graz ist die beste?What is the best cleaning service in Graz?
- 2Ich brauche jemanden, der jede Woche meine Wohnung in Graz putzt. Welche Firma würdest du empfehlen?I need someone to clean my apartment in Graz every week. Which company would you recommend?
- 3Welche Reinigungsfirma in Graz macht eine gründliche Endreinigung beim Auszug?Which cleaning company in Graz does a good move-out deep clean?
- 4Welche Büroreinigungsfirma in Graz würdest du einem kleinen Unternehmen empfehlen?Which office cleaning company in Graz would you recommend for a small business?
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.
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