Firms can use the outsourcing model for all their needs, except where they allocate resources to specialize. Among these, promotion and information technology requirements are the most common. The most referenced outsourcing models are as follows.

• Data processing, archiving
• Programming, Software development
• Automation systems development
• Human Resources Management
• Employee training
• Advertising and promotional activities
• Graphic design services
• Translation services
• Accounting management
• Food service, staff transportation
• Sales & Marketing
• Inspection and consultancy services