| DMV Smog | Smogs R Us Inspecton Station | La Mesa, CA | 619 460-7664 |
| Dance Floor Rentals | Abbey Party Rents | San Diego, CA | 619 597-0201 |
| Day Care | Precious Jewels Home Day Care | San Diego, , CA | 858 278-9750 |
| Death and Dying | San Diego Cty Coalition - End of Life Care | San Diego, CA | 858 635-1224 |
| December 7, 1941 | Remembering Pearl Harbor | San Diego, CA | 619 294-4411 |
| Deep Sea Fishing Tackle | Lakeside Bait and Tackle | Lakeside, CA | 619 443-3859 |
| Dementia Care | Sungarden Terrace Retirement | Lemon Grove, CA | 619 462-5831 |
| Dent Repair | New Life Auto Body | San Diego, CA | 619 667-0005 |
| Development | Conrad Consulting, Inc. | La Mesa, CA | 619 442-0255 |
| Diabetic Aids | Diabetic Aids | Escondido, CA | 800 884-7546 |
| Diesel Fuel Injection | Omega Fuel Injection | El Cajon, CA | 619 448-3295 |
| Diet | Coastal Medical Weight Loss Centers | Escondido, CA | 800 884-7546 |
| Diet | Kind Care Medical Center | Southern California, CA | 866 374-3259 |
| Diet Medications | Kind Care Medical Center | Southern California, CA | 866 374-3259 |
| Diet Pill | Diet Pills Store | Escondido, CA | 800 884-7546 |
| Diet Programs | Kind Care Medical Center | Southern California, CA | 866 374-3259 |
| Dietary Aids | Kind Care Medical Center | Southern California, CA | 866 374-3259 |
| Discount Car Rentals | Dirt Cheap Car Rental | San Diego, CA | 619 234-9300 |
| Disk & Drum Turning | Canfield Brakes | Lemon Grove, CA | 619 465-3535 |
| Dog Training | ABC (A Better Canine) School for Dogs | La Mesa, CA | 619 466-1877 |
| Domestic Jet Travel | Fly Private | Hingham, MA | 800 641-5387 |
| Doors | La Mesa Door & Window | La Mesa, CA | 866 465-2267 |
| Drafting | Conrad Consulting, Inc. | La Mesa, CA | 619 442-0255 |
| Drag Racing | San Diego Superchargers | San Diego, CA | 619 689-9811 |
| Drapes | San Diego Upholstery | San Diego, CA | 619 286-0713 |
| Dune Buggies Tires and Wheels | Daryl Smith Sand Tires | Lemon Grove, CA | 619 463-5516 |