| Business | Phone |
| Advance Billing Systems 23307 98th Ave S, Kent 98031 | (253) 520-0158 |
| Advanced Billing Solutions 19011 W Valley Hwy A102, Kent 98032 | (425) 291-9113 |
| East Hill Medical Billing 22920 112th Pl Se, Kent 98031 | (253) 813-3997 |
| Health Care Business Svc 8009 S 180th St 103, Kent 98032 | (425) 656-4255 |