| Business | Phone |
| Dialysis Laboratories 111 Michigan Ave Nw, Washington 20010 | (202) 265-7031 |
| Dialysis Laboratories 3223 K St Nw, Washington 20007 | (202) 965-2430 |
| Georgetown Main Lab 3800 Reservoir Rd Nw # 1, Washington 20007 | (202) 444-3500 |
| Laboratory Corp Of 3230 Pennsylvania Ave Se, Washington 20020 | (202) 583-4939 |
| Oakridge National Lab 901 D St Sw # 910, Washington 20024 | (202) 479-0447 |
| Sandia National Laboratories 950 Lenfant Plz Sw # 110, Washington 20024 | (202) 314-3030 |
| Space Dynamics Laboratory 1101 30th St Nw # 200, Washington 20007 | (202) 822-8296 |
| Win Laboratories Ltd 1019 19th St Nw, Washington 20036 | (202) 393-0720 |
| Urban Style Lab 1341 Connecticut Ave Nw, Washington 20036 | (202) 223-2066 |
| Abbott Laboratories 1399 New York Ave Nw # 200, Washington 20005 | (202) 378-2020 |