| Churches in Hartford, OH (5) | Fire Departments in Hartford, OH (3) |
| Government Offices in Hartford, OH (3) | Appliances - Household - Major - Repairing in Hartford, OH (2) |
| Funeral Home in Hartford, OH (2) | Greenhouses in Hartford, OH (2) |
| Grove & Orchard Management in Hartford, OH (2) | Meat Packers in Hartford, OH (2) |
| Post Offices in Hartford, OH (2) | Race Tracks in Hartford, OH (2) |
| Schools in Hartford, OH (2) | Surveyors - Land in Hartford, OH (2) |
| Archery Equipment & Supplies in Hartford, OH (1) | Automobile Dealers - Used Cars in Hartford, OH (1) |
| Automobile Dealers Performance & Race in Hartford, OH (1) | Carpentry Contractor in Hartford, OH (1) |
| Copying & Duplicating Machines & Supls in Hartford, OH (1) | Elementary Secondary School in Hartford, OH (1) |
| Environmental Excavating Contractor in Hartford, OH (1) | Fruit Tree Orchard in Hartford, OH (1) |
| Garbage Collection in Hartford, OH (1) | General Contractors in Hartford, OH (1) |
| Government Offices - State in Hartford, OH (1) | Home Contractor in Hartford, OH (1) |
| Insurance in Hartford, OH (1) | Labor Organizations in Hartford, OH (1) |
| Lawn Garden Services Landscape Services in Hartford, OH (1) | Machine Shops in Hartford, OH (1) |
| Manufacturing Representative in Hartford, OH (1) | Mfg Games Toys in Hartford, OH (1) |
| On - Line Retailer Of College Textbooks in Hartford, OH (1) | Ornamental Nursery in Hartford, OH (1) |
| Physical Therapists in Hartford, OH (1) | Repair Electrical Appliances Ret Appliances Televisions in Hartford, OH (1) |
| Tanks - Metal (Wholesale) in Hartford, OH (1) | Wholesale Tires Tubes in Hartford, OH (1) |
