- Ice Cream & Frozen Yogurt, College Park
- Ikea Furniture, College Park
- Industrial & Commercial Cleaning Services & Companies, College Park
- Industrial & Commercial Real Estate, College Park
- Industrial & Heavy Equipment Repair & Service, College Park
- Industrial & Personal Service Paper, Boxes & Cardboard, College Park
- Industrial Contractors, College Park
- Industrial Goods & Products - Hard Goods - Large, College Park
- Industrial Goods & Products - Hard Goods - Small, College Park
- Industrial Goods & Products - Soft - Large & Small, College Park
- Industrial Machinery Supplies & Equipment - Leasing & Rental, College Park
- Industrial Maintenance & Cleaning Contractors, College Park
- Industry, College Park
- Information Bureaus & Services, College Park
- Inspection & Testing Services, College Park
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- Insurance Brokers, College Park
- Insurance Carriers, College Park
- Insurance Farm, College Park
- Insurance General Liability, College Park
- Insurance Motorcycles, College Park
- Insurance Renters, College Park
- Insurance Services, College Park
- Interior Designers, College Park
- Interior Designers & Decorators, College Park
- Internal Medicine Doctors, College Park - Internists Physicians & Surgeons
- Internet Providers, College Park
- Internet Services, College Park
- Investment Services & Advisors, College Park
- Italian Restaurants, College Park
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