- Cafe Restaurants, New Carrollton
- Car Rental, New Carrollton - Rental Cars & Lease Service
- Carpool & Van Pooling, New Carrollton
- Cars, Truck, Van & SUV Car Dealerships, New Carrollton - Auto Dealers
- Casual Dining Restaurants, New Carrollton
- Cell & Mobile Installation Repairs, New Carrollton
- Cellular & Mobile Phone Equipment & Systems Installation, Repair & Service, New Carrollton
- Cellular & Mobile Phone Service, New Carrollton
- Charismatic Church, New Carrollton
- Charitable & Non-Profit Organizations, New Carrollton
- Chicken Restaurants, New Carrollton
- Child Care & Day Care Services, New Carrollton
- Chinese Restaurants, New Carrollton
- Chiropractor, New Carrollton
- Church Multicultural & Multilingual, New Carrollton
- Churches 1 Of 3, New Carrollton
- Churches 2 Of 3, New Carrollton
- Churches 3 Of 3, New Carrollton
- City & County Administrative Agencies, New Carrollton
- City & County Government, New Carrollton
- City & County Law Enforcement, New Carrollton
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- Clinics, New Carrollton
- Clothing Stores, New Carrollton - Clothes & Accessories
- Coffee & Tea Stores, New Carrollton
- Coffee, Espresso & Tea House Restaurants, New Carrollton
- Commercial, Industrial & Office Space for Rent & Lease, New Carrollton
- Communications Services, New Carrollton
- Community Services, New Carrollton
- Computer & Software Stores, New Carrollton
- Computer Repair, New Carrollton
- Computer Software & Services, New Carrollton
- Computer Software Service, New Carrollton
- Concrete Contractors, New Carrollton - Concrete Construction & Concrete Companies
- Condominiums & Townhomes for Rent, New Carrollton - Townhouses & Condos for Rent & Lease
- Construction, New Carrollton
- Construction Companies, New Carrollton
- Construction Estimators, New Carrollton
- Construction Services, New Carrollton
- Consultants & Services, New Carrollton
- Convenience Stores, New Carrollton
- Cosmetics, Toiletries, Perfumes & Beauty Supply Stores, New Carrollton
- County Police, New Carrollton
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