USRobotics - Schaumburg, IL
Manufacturer
Manufacturer of network connectivity devices. Products include dialup modems, console server and remote power hybrid units, network taps, USB 3.0 peripherals and network attached storage adapters. Types of modems include enterprise/business modems, internal modems, external modems, serial controller and USB controller modems and PCI controller modems. Products such as call director telephone switches, copper taps, fiber taps, aggregating taps, wireless keyboards, USB 3.0 card readers, USB 3.0 hubs, USB 3.0 adapters and USB 3.0 cables are available. RoHS compliant.
Brand Names: Courier, SureConnect, USRobotics, uShare
www.usr.com/home.asp

Siemens Infrastructure & Cities, Building Technologies - Buffalo Grove, IL
Manufacturer, Custom Manufacturer
Mfr of network control & management systems as well as hardware: LAN, teleconferencing, wireless communication systems. Devices for end users to complex network infrastructures for enterprises & carriers as well as related services. Flexible IP & convergence platforms, security features, expandability. Applications in unified messaging, CTI & mobile communications. ISDN, cordless & IP phones. Integration services.

Transcend Communication Beijing Co., Ltd. - Lockport, IL
Manufacturer
Manufacturer of networking products.

Networked Robotics - Evanston, IL
Service Company
Network monitoring service

Grid Connect, Inc. - Naperville, IL
Distributor, Manufacturer
Manufacturer & distributor of network devices, hardware, systems & controllers.