| Business | Phone |
| Children's Safety Care 243 Grange Hall Dr, Gaithersburg 20877 | (301) 977-8334 |
| Radiation Safety Academy 481 N Frederick Ave # 302, Gaithersburg 20877 | (301) 990-6006 |
| Institute For Safety Analysis 7826 Airpark Rd, Gaithersburg 20879 | (301) 948-0602 |
| K & A Firstaid 337 Little Quarry Rd, Gaithersburg 20878 | (301) 208-0000 |