Database design audit

We have severe problems with our Hospital Information System we think related with defaults we had verify in the design of databases that support the system as not normalization, not foreign keys defined, even not primary keys defined in a lot of important tables (you can believe it!). After a lot of claims, the provider is agree with us an independant organization supervise the database design. Now, our fear is the provider choose someone with the same knowledge about relational databases that itself. So, we will appreciate some references to serious organizations with good level of expertise in relational databases that can operate in Spain.

Best regards,

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Raimundo Lozano
Hospital Clinic
Barcelona
Spain
rlozano_at_clinic.ub.es