Customers
We have run this migration before
In production, in banking, under audit. A selection of the private cloud and data platform work delivered for European financial institutions, retailers and industrial groups.

Institutions we have built for
Our references are grouped by sector: banking and insurance, retail and distribution, and industry. Each case describes the challenge, the architecture we delivered, the technologies involved and the measured outcome. Client names are withheld until each institution has approved publication; the figures are those reported at project close.
Santander
ING
Bankinter
Kutxabank
Laboral Kutxa
Mapfre
Inditex
BonÀrea
WardianSantander
ING
Bankinter
Kutxabank
Laboral Kutxa
Mapfre
Inditex
BonÀrea
Wardian
Banking
- Santander
- ING
- Bankinter
- Kutxabank
- Laboral Kutxa
Insurance
- Mapfre
Retail & distribution
- Inditex
- BonÀrea
Industry & others
- Wardian
Case studies
Case studies
Banking
Moving a retail bank's core workloads from public cloud to a private cloud, without downtime
A top-5 Spanish retail bank
The bank needed to bring several hundred workloads back from a hyperscaler into its own data centres under a regulatory deadline. NuxFamily designed the target platform, ran the migration in waves and handed over operations to the bank's team.
Read the case0
Minutes of unplanned downtime across nine migration waves
−38 %
Infrastructure run cost versus the public-cloud baseline
7 months
From platform build to final cut-over, ahead of the deadline
Insurance
A governed lakehouse for an insurer's claims and pricing data
A leading European insurer
The insurer's analytics ran on an ageing warehouse and a set of unmanaged data lakes with no lineage. NuxFamily delivered a single on-premises lakehouse with a catalogue, lineage and access control that satisfied the internal audit function.
Read the case100 %
Of regulated reports with end-to-end lineage in the catalogue
6×
Faster actuarial model runs compared with the legacy warehouse
0
Reports lost or rewritten during the transition
Retail & distribution
A multi-region Kubernetes and PaaS platform for a global fashion retailer
A global fashion retailer headquartered in Spain
The retailer needed a single application platform for hundreds of development teams across regions, with on-premises control and a cloud-like developer experience. NuxFamily built it on VMware Tanzu and Cloud Foundry and operated it through peak trading seasons.
Read the case< 15 min
From code push to a routed production deployment
3
Regions served from one platform with consistent standards
99.98 %
Platform availability across peak trading periods
Banking
Real-time fraud scoring on a private streaming platform
A European bank with a large card-payments business
The bank's fraud checks ran in batch and missed the window in which a transaction could still be declined. NuxFamily built an on-premises streaming and in-memory platform that scores card transactions in real time, with full data residency.
Read the case< 50 ms
Added latency per authorisation for real-time scoring
−31 %
Fraud losses on card transactions in the first year
100 %
Of scoring decisions retained with features and model version
Over two decades
Built by the team behind the platforms of Santander, ING, Bankinter, Mapfre and Inditex
More than twenty years designing, building and operating private clouds for institutions that cannot afford to fail, and a delivery model where we stay with you from assessment to operation.
See our track record20+
Years building private clouds
40+
Private clouds delivered
Your institution could be the next case
Tell us about your platform and regulatory timeline; we will show you which of these patterns applies.