Service Provider

examples such as:

• CROs
• Central laboratories
• Imaging core labs
• eCOA/ePRO providers
• IRT/IWRS vendors
• Pharmacovigilance providers
• Central ECG laboratories
• Biostatistics providers
• Clinical supplies providers

This also gives you a clean hierarchy:

• Service Provider ← general concept
• Contract Research Organization (CRO) ← specialized service provider
• Central Laboratory
• Imaging Core Laboratory
• eCOA Provider
• etc.