At least half of US-based SMBs have installed a local area network (LAN), with a growing percentage of being server-based LANs. Likewise, half of small businesses (SBs or companies with up to 99 staff) and up to 85% of medium businesses (MBs or companies with 100 to 999 staff) have mobile employees. More than 66% of US SMBs use notebooks and a growing number use handheld devices purchased by the company, AMI Partners reports.