- Ice Cream & Frozen Yogurt, Lexington
- Ice Sports Clubs & Instruction, Lexington
- Indian Restaurants, Lexington
- Industrial & Commercial Cleaning Services & Companies, Lexington
- Industrial & Commercial Real Estate, Lexington
- Industrial & Heavy Equipment Repair & Service, Lexington
- Industrial Contractors, Lexington
- Industrial Equipment & Machinery, Lexington
- Industrial Goods & Products - Hard Goods - Small, Lexington
- Industrial Goods & Products - Soft - Large & Small, Lexington
- Industrial Maintenance & Cleaning Contractors, Lexington
- Industry, Lexington
- Information Bureaus & Services, Lexington
- Information Retrieval Services, Lexington
- Instruments, Lexington - Control Equipment
- Insurance Adjusters, Lexington
- Insurance Adjusters Public, Lexington
|
- Insurance Advisors, Lexington
- Insurance Brokers, Lexington
- Insurance Carriers, Lexington
- Insurance Consulting & Information Services, Lexington
- Insurance Services, Lexington
- Interactive & Multimedia Software, Lexington
- Interior Designers, Lexington
- Interior Designers & Decorators, Lexington
- International Trade Consultants, Lexington - Foreign Trade
- Internet Services, Lexington
- Investment Bankers, Lexington
- Investment Management Services, Lexington
- Investment Services & Advisors, Lexington
- Investments & Mutual Funds, Lexington
- Irish Restaurants, Lexington
- Italian Restaurants, Lexington
|