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Operations that cannot afford failure — running on what we build.
A snapshot of the organisations that have built their operational systems on deister software. Healthcare networks at European scale. Catalonia's leading supermarket group. Spain's largest ski resort. One of Spain's two largest media groups. Mission-critical operations where the platform behind the application has to be as serious as the application itself.
50,000+ employees served
At Quirónsalud alone — Spain and Europe's largest private hospital group. The single biggest healthcare reference in our portfolio.
216 stores · 66 fuel stations
Bon Preu Group — Catalonia's leading supermarket group, with €2.42B in 2024 revenue and a multi-format retail and fuel-station operation.
1 million+ skiers a season
Baqueira Beret — Spain's largest ski resort, concentrating a million-plus transactions across 131 operational days.
2nd-largest TV group in Spain
Mediaset España — seven channels, 24.5% audience share, part of the pan-European MFE-MediaForEurope group (€2.95B group revenue).
Four customers, four different complexity tests
Quirónsalud — healthcare at European scale
160+ healthcare centres including 58 general hospitals (8 of them university hospitals), 8,000+ beds, 50,000+ employees across 13 Spanish autonomous communities. €5.43B in 2025 revenue. Also present in Chile, Colombia and Peru. The healthcare reference.
Bon Preu Group — multi-format retail
216+ stores under the Bonpreu and Esclat banners, 66 EsclatOil fuel stations, 11,000 employees. €2.42B revenue in 2024 — a record high. Catalonia's leading supermarket group, founded 1974.
Baqueira Beret — extreme seasonality
Spain's largest ski resort. 170 km of skiable slopes across four sectors, 36 lifts with capacity of 62,000+ persons per hour, hosting international events including the Freeride World Tour. A million-plus skiers concentrated in 131 operational days.
Mediaset España — media and broadcasting
Spain's second-largest TV group with 24.5% audience share. Seven channels (Telecinco, Cuatro, Divinity, Boing, Factoría de Ficción, Energy, Be Mad). 1,663 employees. Digital leader with 2.87 billion clip views in 2024. Part of MFE-MediaForEurope (€2.95B group revenue).
Why these four
The customer portfolio that defines the brand is not a list of logos; it is a portfolio of operational complexities. Healthcare at European scale. Multi-format retail with a fuel-station network. A million seasonal transactions through fixed infrastructure. A multi-channel media group's financial back office. Each one is a different way that *mission-critical* manifests in practice — and each one runs on what we build.
The case studies below detail what each customer operates, what makes the operation demanding, and the role deister software plays in it. Names that customers have approved for public reference are used. Where a customer is referenced for scale but a specific narrative is still under review, the page carries a placeholder for the verbatim detail.