| Business Consulting Services in Garrett Park, MD (3) | Architects in Garrett Park, MD (2) |
| Business Construction Services in Garrett Park, MD (2) | Business Management Consultants in Garrett Park, MD (2) |
| City Government - Executive Offices in Garrett Park, MD (2) | Schools in Garrett Park, MD (2) |
| Weather Forecast Service in Garrett Park, MD (2) | Air Conditioning Contractors & Systems in Garrett Park, MD (1) |
| Antiques - Dealers in Garrett Park, MD (1) | Architectural Services Landscape Services in Garrett Park, MD (1) |
| Auctioneers in Garrett Park, MD (1) | Beauty Salons in Garrett Park, MD (1) |
| Books & Magazines in Garrett Park, MD (1) | Breastfeeding Supplies & Information in Garrett Park, MD (1) |
| Building Contractors in Garrett Park, MD (1) | Check Cashing Service in Garrett Park, MD (1) |
| Child Care Service in Garrett Park, MD (1) | Churches in Garrett Park, MD (1) |
| Clergy in Garrett Park, MD (1) | Commercial Art Graphic Design in Garrett Park, MD (1) |
| Commercial Art Graphic Design in Garrett Park, MD (1) | Computer Services in Garrett Park, MD (1) |
| Construction Consulting & Engineering Services in Garrett Park, MD (1) | Construction Management in Garrett Park, MD (1) |
| Delis & Delicatessens in Garrett Park, MD (1) | Garment Press Cleaner's Agent in Garrett Park, MD (1) |
| Graphic Designers in Garrett Park, MD (1) | Home Builders in Garrett Park, MD (1) |
| Industrial Equipment & Supplies (Whol) in Garrett Park, MD (1) | Internet Home Page Dev Consulting in Garrett Park, MD (1) |
| Jewelry - Repairing in Garrett Park, MD (1) | Lawn Garden Services in Garrett Park, MD (1) |
| Locks & Locksmiths in Garrett Park, MD (1) | Mental Health Services in Garrett Park, MD (1) |
| Mfg Lab Apparatus Furniture Whol Professional Equipment in Garrett Park, MD (1) | Midwives in Garrett Park, MD (1) |
| Murals in Garrett Park, MD (1) | Music Arrangers & Composers in Garrett Park, MD (1) |
| Painters in Garrett Park, MD (1) | Post Offices in Garrett Park, MD (1) |
| Psychologists in Garrett Park, MD (1) | Publishers in Garrett Park, MD (1) |
| Real Property Lessor Vegetable Melon Farm in Garrett Park, MD (1) | Restaurants in Garrett Park, MD (1) |
| Retreat Houses in Garrett Park, MD (1) | School Educational Services in Garrett Park, MD (1) |
| Schools - Nursery & Kindergarten in Garrett Park, MD (1) | Scientists - Consulting in Garrett Park, MD (1) |
| Services - Misc in Garrett Park, MD (1) | Social Workers in Garrett Park, MD (1) |
| Tutoring in Garrett Park, MD (1) | Watches - Dealers in Garrett Park, MD (1) |
| Writers in Garrett Park, MD (1) |
