- Tables Retail, Oakland - Tabletops
- Tanning Salons, Oakland
- Tax Return Preparation, Oakland
- Telecommunications, Oakland
- Telecommunications Companies, Businesses & Services, Oakland
- Telephone Communication Service & Phone Companies, Oakland - Local & Long Distance Telephone Service
- Television Stores & Dealers, Oakland
- Temp Agencies, Oakland
- Temporary & Contractor Agencies, Oakland
- Terrazzo Tile Marble & Mosaic Contractors, Oakland
- Textile Products - Wholesale & Retail, Oakland
- Theatrical Producers & Services, Oakland
- Thrift Stores, Resale & Consignment Shops, Oakland
- Tile Contractors - Install & Repair, Oakland - Ceramic & Porcelain Tile Flooring - Kitchen & Bathroom
- Tile Flooring, Oakland
- Tires - Wholesale & Retail, Oakland
- Title & Surety Insurance, Oakland
|
- Tool & Die Makers, Oakland
- Tools & Hardware Supplies, Oakland
- Tourist Attractions, Oakland
- Towing Service, Oakland
- Trade Shows, Expositions & Fairs, Oakland
- Transportation, Oakland
- Transportation Inspection Services, Oakland
- Transportation Rental & Leasing, Oakland
- Transportation Service Permit, Oakland
- Travel & Tourism, Oakland
- Tribal Administrative Agencies, Oakland
- Tribal Government, Oakland
- Truck Permit Service, Oakland
- Truck Rental & Leasing, Oakland - Rent a Truck & Tractor
- Truck Repair & Service, Oakland
- Tutoring Instructor, Oakland
|