Prgmr.com offers UNIX consulting services. We are based in Sacramento and Vietnam. Of course, I can drive down to the bay area (or anywhere else, for enough money)I currently have one client in Sunnyvale, and several in Sacramento.

You can learn a bit about Luke Crawford and Thuy Vu

Luke Crawford has a lot of experience with open-source mail systems, with LAMP and FAMP web hosting, and with UNIX and Cisco networking. Luke also knows a thing or two about fibre channel SAN technology, and virtualization technology.

Thuy Vu has quite a lot of experience with Cisco networking equipment, and with PKI systems. She also has experience with LAMP and FAMP webhosting, and with MySQL optimization.