Trainline is the incumbent, but Aeronaut offers a European alternative rooted in EU data laws and stronger digital sovereignty.
Incumbent Solution
Trainline is an independent rail and coach travel platform that aggregates ticket information and enables bookings across multiple transport operators. The company operates primarily as a digital intermediary connecting passengers to rail services throughout Europe and the United Kingdom.
Trainline ownership profileEU Challenger
Aeronaut was a pioneering Estonian airline established in 1921 that operated international flights between Tallinn, Helsinki, Riga, and Königsberg. The company ceased operations in 1927 following financial difficulties and the withdrawal of government subsidies.
Visit AeronautAeronaut ownership profile| Metric | Trainline | Aeronaut |
|---|---|---|
| Headquarters | London, GB | Tallinn, EE |
| Ownership | public · London Stock Exchange | private |
| Tax Domicile | GB | EE |
| Ultimate Parent | Trainline PLC | — |
| Data Hosting | GB | — |
| CLOUD Act Exposure | Yes ⚠️ | No ✓ |
| AI Trains on User Data | — | — |
| GDPR | compliant | — |
| DSA Designation | — | — |
| Carbon Neutral | true | — |
| B Corp | No | No |
| Supply Chain | Modern Slavery Act statement published | — |
| Repair / Recycling | No | No |
Last verified . Sources: Trainline on Wikidata, Trainline website, Aeronaut on Wikidata, How we audit.