Los Angeles Computer service providers should follow a similiar guideline as mention below: They should support the following operating systems: Microsoft Windows, FreeBSD, Linux, Computer Consulting When providing Network and System Administration or what we have coined in the field as Outsourcing for Small Business. The services that should be offered are the following: Website Hosting and Website Design, Database Driven Dynamic Websites Proxy Servers, Content Filtering Web & Email Servers, Fax Servers Gateways, Firewalls, VPN Server, Remote Access. Windows Office Integration with Samba Server. Computer Service, PC Repair, Technical Support Some companies offer onsite and remote service. It really depends on where you are located and what rates they are charging. Onsite Computer Services companies in Los Angeles will most likely perform the following services: - Network Services - Network Security - Network Maintenance Contract - Computer Hardware and Software Support - Website Hosting, Website Design, E-commerce - PHP / MySQL Database driven dynamic website development - Wireless Technologies - Remote Network Support - Data, Network Cabling - Microsoft Windows, FreeBSD, Linux Computer Consulting - Network and System Administration - Web and E-mail Content Filtering / Proxy Servers (Squid, Spamassassin) - Gateways, Firewalls, Remote Access, VPN Servers - Samba Server for file sharing and print services - Computer Service, PC Repair, Technical Support This should give you a good idea on what to look for in an computer services company.