Windsor.ai
Swiss data integration platform with 350+ marketing sources and a free plan feeding Looker Studio, Power BI and warehouses
Quick Overview
| Company | Windsor Group AG |
|---|---|
| Category | Marketing Reporting Software |
| Headquarters | Zurich, Switzerland |
| Founded | 2017 |
| EU Presence | Yes - Switzerland (non-EU, eligible) |
| Data Location | Not stated on the pages checked |
| Open Source | No |
| GDPR Compliant | Yes |
| Self-Hosting | No |
| Main Features | 350+ data sources, Looker Studio and Power BI syncs, BigQuery and Sheets destinations, AI chat connection, free plan, SOC 2 Type 2 |
| Pricing | Free plan; Basic USD 19/month, Standard USD 99, Plus USD 249, Professional USD 499 (billed annually) |
| Best For | Small teams and agencies that want cheap connectors into Looker Studio or Power BI |
| Replaces | Supermetrics, Funnel, Fivetran for marketing data |
Detailed Review
Windsor.ai pulls data from 350+ business platforms and sends it to BI tools, spreadsheets, warehouses and AI chats without code. Its pricing page lists a free plan and paid tiers that scale by data sources and accounts.
The terms and privacy statement name Windsor Group AG, governed by Swiss law with arbitration seated in Zurich. The founder says on the about page that he started the company in Zurich in 2017. Switzerland is not an EU member, but is on the eligibility list for this directory.
Cheap Entry, Account Caps
The free plan allows 10 data sources during a 30-day trial and then 1 source and 1 account. Basic (USD 19 per month billed annually) gives 3 sources and 75 accounts, and Standard (USD 99) gives 7 sources with unlimited destination tasks. Professional adds auto-adding all accounts for agencies.
Syncs to BI
Every plan offers unlimited BI syncs to Looker Studio and Power BI, with Tableau reachable via Google Sheets or a database.
Security Audit
The security page states a completed SOC 2 Type II audit by Prescient Assurance.
Limitations to Consider
Windsor.ai prices in US dollars, and the Basic and Standard tiers cap the number of data sources, which an agency covering many channels will outgrow. It does not build white-label client reports itself, so you still need Looker Studio or Power BI for the report. The pages checked do not state a data hosting location, and Switzerland is outside the EU. Compare with Dataslayer or Supermetrics.
Who Should Use Windsor.ai
Small agencies and freelancers who build reports in Looker Studio or Power BI and want low-cost connectors from a Swiss company.
Pros and Cons
Pros
- Free plan available
- 350+ data sources
- Unlimited BI syncs on every plan
- Swiss law and Zurich arbitration
- SOC 2 Type II audit stated
Cons
- USD pricing
- Source caps on lower tiers
- No finished report builder
- Hosting location not stated on pages checked
Alternatives to Windsor.ai
Other European marketing reporting software worth comparing before you decide:
Whatagraph
Netherlands · Agency reporting with cross-channel data layer and AI agents
Supermetrics
Finland · Marketing data connectors into Sheets, Looker Studio and BI
Swydo
Netherlands · Agency reports priced by data source, with unlimited clients
Funnel
Sweden · Stockholm marketing data hub with a choice of EU data region
See all European marketing reporting software or compare them directly against Supermetrics on our alternatives page.
Frequently Asked Questions
Its terms of service and privacy statement name Windsor Group AG and apply Swiss law, with arbitration seated in Zurich.
Yes. The pricing page lists a Free plan, with a 30-day trial of broader limits and then 1 user, 1 data source and 1 account.
Looker Studio, Power BI, Google Sheets, BigQuery, other warehouses and AI chats, with Tableau reachable via Sheets or a database.