Management/Research
- Analytical Services
- Archiving Products Or Services
- Business Consultants
- Consulting Engineers
- Historical Researchers & Associations
- Industrial & Scientific Research
- Information Services
- Inspection Testing & Calibrating Services
- Management Consultants & Associations
- Market Research Consultants
- Product & Industrial Designers
- Purchasing Advisory Services
- Quality Assurance
- Small Business Consulting
- Statistical & Mathematical Analysis Services
- Teaching Aids &/Or Services
- Technical Consultants