# HERMANN — Property & WEG Management

HERMANN by GRB AG holds a panel rating of 0.5/5 from 6 AI judges (category median 1/5), as of 2026-10-21. Provenance: provenance unknown; sovereignty: not determined.

- Vendor: GRB AG (https://www.grb.de)
- Category: [Property & WEG Management](https://whats-best.ai/software/property-management.md)
- Provenance (editorial classification): provenance unknown
- Canonical page: https://whats-best.ai/software/property-management/hermann
- Alternatives: https://whats-best.ai/software/property-management/hermann/alternatives ([markdown](https://whats-best.ai/software/property-management/hermann/alternatives.md))
- Data as of: 2026-10-21 · evaluated 2026-10-21 · oldest source captured 2026-10-20

**AI-generated.** Every score, rationale and verdict here is written by a panel of AI judges from public evidence — an analysis, not a hands-on test. Every fact quotes the vendor page it was read from. No score can be bought. How scores are made: https://whats-best.ai/methodology

## At a glance

- Vendor: GRB AG
- Headquarters: Not stated on the vendor’s pages as of 20 Oct 2026
- Data hosting: Not stated on the vendor’s pages as of 20 Oct 2026
- Free plan: Not stated on the vendor’s pages as of 20 Oct 2026

## The panel's verdict

The bench judged HERMANN, GRB AG's property and WEG management product, from two captured pages — the homepage and the privacy policy — and the scores cluster at 0 on WEG accounting, assembly and resolutions, owner self-service, maintenance and defects, documents and handover, and pricing transparency: the judges found no public information on any of these capabilities. The one genuine split is sovereignty, and it turns on whether the privacy policy's candour about website tooling counts. The data protection officer scored 3 for a named German controller, Ecclesia Holding GmbH in Detmold, and a processor list including US-based tools with stated transfer bases; the WEG administrator gave 1 on the same facts. The skeptic, portfolio manager, accountant and advisory board member scored 0, holding these are website-level facts that leave the product's hosting, contracting entity and subprocessors unknown — the sovereignty record reads unknown on legal-entity jurisdiction, ownership, data residency and subprocessor exposure. No prices appear on the captured pages; every figure would come from a sales conversation.

**Speaks for it:**
- A named German controller, Ecclesia Holding GmbH in Detmold, stands behind the website.
- Website hosting sits with a German provider, onix GmbH.
- The privacy policy lists the website's processors, including US-based tools with a stated transfer basis — candour the data protection officer credited.
- Newsletter subscriptions run on double opt-in, with an unsubscribe link in every issue.
- Google Analytics and Matomo run with IP anonymization.

**Held against it:**
- We found no public information on a business plan, annual settlement, distribution keys or reserve-fund accounting.
- We found no public information on convening owners' meetings, voting support or a maintained resolution register.
- We found no public information on an owner or tenant portal, per-owner statements or defect intake.
- We found no public information on document archiving, retention periods for community records or a defined handover export.
- The sovereignty record reads unknown on legal-entity jurisdiction, ownership, data residency and subprocessor exposure.

**Best for:**
- You are comparing vendors through direct sales conversations and want the public pages to confirm a German controller and German website hosting.
- You audit privacy policies and value a processor list that names US-based tools with their stated transfer bases.
- Your shortlist turns on candour in public privacy disclosure rather than on published product capability.

**Avoid if:**
- You must see a product's hosting location, contracting entity and subprocessors documented before shortlisting — the sovereignty record reads unknown on legal-entity jurisdiction, ownership, data residency and subprocessor exposure.
- Your policy rules out US-based processing in any channel — the website chain includes Microsoft Clarity on a USA data centre and Google reCAPTCHA, with the EU-U.S. Data Privacy Framework given as transfer basis.
- You need to budget from published prices — the captured pages carry none.
- You must assess settlements, assemblies and an owner portal from public documentation — the only concrete product details on the captured pages concern website analytics and tracking tools.

## Scores by judge and criterion

Scores out of 5, each judge scoring independently against the published rubric (v1). "n/r" = not rated: the vendor publishes no price.

| Criterion | The WEG Administrator | The Advisory Board Member | The Accountant | The Portfolio Manager | The Data Protection Officer | The Skeptic |
| --- | --- | --- | --- | --- | --- | --- |
| Wirtschaftsplan, Jahresabrechnung & Rücklage | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 |
| Eigentümerversammlung & Beschluss-Sammlung | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 |
| Owner & tenant self-service | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 |
| Maintenance, defects & contractors | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 |
| Documents, retention & handover | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 |
| European sovereignty | 0.5/5 | 0/5 | 0/5 | 0/5 | 1.5/5 | 0/5 |
| Pricing transparency | n/r | n/r | n/r | n/r | n/r | n/r |
| **Weighted verdict** | **0/5** | **0/5** | **0/5** | **0/5** | **0.5/5** | **0/5** |

### The judges

- **The WEG Administrator** (v1.0): Manages forty communities and personally carries the duties the WEG places on the Verwalter. Wants the statutory year — Wirtschaftsplan, Jahresabrechnung, Versammlung, Beschluss-Sammlung — discharged inside one system. Judges a product by the March settlement run, not the demo.
- **The Advisory Board Member** (v1.0): An owner, elected and unpaid, who checks the administrator's settlement before recommending it to the assembly — and is answerable to the neighbours if it is wrong. Wants to see the underlying records without asking, the resolution register current, and arithmetic that can be followed back to an invoice.
- **The Accountant** (v1.0): Prepares the settlement and answers for its form. Cares that the Abrechnungsspitze is shown separately, that the Rücklage is genuinely segregated trust money rather than a labelled balance, and that heating costs apportion per HeizkostenV without a spreadsheet.
- **The Portfolio Manager** (v1.0): Runs a firm managing several thousand units and lives on throughput. Wants statutory inspections scheduled with proof stored, defects that route to the right trade, multi-community reporting, and onboarding a new WEG that takes days rather than a quarter.
- **The Data Protection Officer** (v1.0): The system holds names, addresses, bank details and arrears for people who never chose the vendor. Wants owner and tenant visibility strictly separated, an access log over the archive, retention that executes, and an answer on where the AI invoice reader sends a document.
- **The Skeptic** (v1.0): Has read many pages claiming "WEG-konform" and wants the feature that makes it true — the post-2021 settlement form, the maintained Beschluss-Sammlung, the majority arithmetic. Also reads for the per-unit minimum, the setup fee, and what it costs a community to leave with its own records.

## European sovereignty — proven facts

Built only from facts on the vendor's own pages; a dimension we could not prove is left open, never scored as zero. Headline: not determined.

| Dimension | Finding | Points | Source |
|---|---|---|---|
| Legal entity | Not determined | — | — |
| Ownership | Not determined | — | — |
| Data residency | Not determined | — | — |
| Subprocessors | Not determined | — | — |

## Key facts

Each fact is the vendor's own statement, cited to the source page it was read from ([S*n*] → Sources).

**Compliance**
- Google ads tracking: Google Ads Conversion Tracking · Google Tag Manager [S2]
- Linkedin joint controller: https://legal.linkedin.com/pages-joint-controller-addendum · joint controllership per Art. 26 GDPR [S2]
- Newsletter double opt in: yes [S2]
- Newsletter optout: yes [S2]
- US transfer basis: EU-U.S. Data Privacy Framework (Art. 45(3) GDPR) · standard contractual clauses (where applicable) [S2]

**Data**
- Collected website categories: IP addresses · pages visited · date and time of access · browser name · operating system name · search engine or external link name · downloaded file names [S2]
- Event retention health data: 2 [S2]
- Newsletter deletion: yes [S2]

**Hosting**
- Provider: onix - Dienstleistungs- und Handels GmbH [S2]

**Legal**
- Controller: Detmold · Ecclesia Holding GmbH · controller · Ecclesiastraße 1 – 4 · Germany · 32758 [S2]

**Product**
- Analytics google: Google Analytics · traffic analysis · yes [S2]
- Analytics matomo: Matomo · traffic analysis · yes [S2]
- Captcha: Microsoft CaptCha · bot prevention [S2]
- Clarity input masking: yes [S2]
- Company site footer platform: onix GmbH [S1]
- Leadfeeder: Leadfeeder · Dealfront Germany GmbH · company identification/behavioral tracking · Art. 6(1)(a) GDPR consent [S2]
- Linkedin insight tag: LinkedIn Insight Tag · LinkedIn Ireland Unlimited Company · advertising performance analysis on LinkedIn [S2]
- Microsoft clarity: Microsoft Clarity · Microsoft Corporation · heatmaps · session recordings · USA · yes [S2]
- Recaptcha: Google reCAPTCHA · human vs. bot detection · Google Ireland Limited [S2]
- Salesviewer: SalesViewer · SalesViewer GmbH · company identification/behavioral tracking · Art. 6(1)(f) GDPR [S2]

## Questions

### Is HERMANN European?

Not determined: the vendor’s pages as captured do not say where HERMANN is based.

### Where does HERMANN store data?

Not stated on the vendor’s pages as of 20 Oct 2026.

### Does HERMANN have a free plan?

Not stated on the vendor’s pages as of 20 Oct 2026.

### What are the best alternatives to HERMANN?

As of 20 Oct 2026, the panel rates [Condomana (3/5)](https://whats-best.ai/software/property-management/condomana), [Immoware24 (2.5/5)](https://whats-best.ai/software/property-management/immoware24) and [etg24 (2.5/5)](https://whats-best.ai/software/property-management/etg24) highest among the other 18 Property & WEG Management products evaluated. Ratings that look equal are rounded to half stars; the order uses the unrounded rating, then the name. The highest-rated European alternative is [Condomana](https://whats-best.ai/software/property-management/condomana) (EU-Made). Ratings are the AI panel’s opinion, formed from public evidence: [how scores are made](https://whats-best.ai/methodology#ordering). The full list, with European products first: [HERMANN alternatives](https://whats-best.ai/software/property-management/hermann/alternatives).

## What this page leaves out

- We found no public information on pricing on the pages we read (grb.de, grb.de/datenschutz). If the vendor publishes it somewhere else, send us the page.
- 14 product facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 6 subprocessors facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 4 legal facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 2 compliance facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 1 hosting fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material.
- 1 sovereignty dimension could not be confirmed on the vendor’s own pages and is shown as unknown.

## Sources

- [S1] Vendor page: https://www.grb.de (checked 2026-10-20)
- [S2] Privacy policy — found from the homepage: https://www.grb.de/datenschutz/ (checked 2026-10-20)

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Cite as: whats-best.ai, "HERMANN — Property & WEG Management", AI panel analysis, as of 2026-10-21. https://whats-best.ai/software/property-management/hermann

Corrections: https://whats-best.ai/correct/940?target=page