Narrow Down Your Search in Illinois
Software & Internet
Location
Software & Internet Businesses in Illinois
At T
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Schaumburg
- Revenue: Over $1 Billion
- Employees: 268,220
At T
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Schaumburg
- Revenue: Over $1 Billion
- Employees: 243,000
At T
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Schaumburg
- Revenue: Over $1 Billion
- Employees: 241,810
At T
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Schaumburg
- Revenue: Over $1 Billion
- Employees: 230,000
Avaya
- Industry: Software And Internet/Software And Internet
- Location: United States
- Revenue: Over $1 Billion
- Employees: 14,538
Brightspeed Of Appalachia
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Brightspeed Of Central Indiana
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Brightspeed Of Central Michigan
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Brightspeed Of Coastal Texas
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Brightspeed Of Louisiana
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Brightspeed Of Michigan
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Brightspeed Of Northern Michigan
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Brightspeed Of Northern Texas
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Brightspeed Of Southern Indiana
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Brightspeed Of Southern Texas
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Brightspeed Of Upper Michigan
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Cbs Radio
- Industry: Software And Internet/Media And Entertainment
- Location: United States, Illinois, Chicago
- Revenue: Over $1 Billion
- Employees: 3,700
Cbs Radio
- Industry: Software And Internet/Media And Entertainment
- Location: United States, Illinois, Chicago
- Revenue: Over $1 Billion
- Employees: 40
Cellco
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Schaumburg
- Revenue: Over $1 Billion
- Employees: 83,100
Cellular One
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Springfield
- Revenue: Over $1 Billion
- Employees: 7,500
Century Link Sales Solutions
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Centurylink
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Centurytel Of Arkansas
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Centurytel Of Central Arkansas
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Centurytel Of Missouri
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Centurytel Of Mountain Home
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Centurytel Of Northwest Arkansas
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Centurytel Of Postville
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Centurytel Of Redfield
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Centurytel Of South Arkansas
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Centurytel Personal Access Network
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Chicago
- Revenue: Over $1 Billion
- Employees: 49,000
Centurytel Televideo
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Carol Stream
- Revenue: Over $1 Billion
- Employees: 49,000
Charter Communications
- Industry: Software And Internet/Media And Entertainment
- Location: United States, Illinois, Maryville
- Revenue: Over $1 Billion
- Employees: 95,100
Cincinnati Bell Extended Territories
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Pana
- Revenue: Over $1 Billion
- Employees: 4,600
Clear Channel Communications
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Chicago
- Revenue: Over $1 Billion
- Employees: 7,500
Clear Channel Metra
- Industry: Software And Internet/Media And Entertainment
- Location: United States, Illinois, Chicago
- Revenue: Over $1 Billion
- Employees: 1
Comcast Cable Communications
- Industry: Software And Internet/Media And Entertainment
- Location: United States, Illinois, Oak Brook
- Revenue: Over $1 Billion
- Employees: 20
Comcast Spotlight
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Chicago
- Revenue: Over $1 Billion
- Employees: 5
Comcast Spotlight
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Chicago
- Revenue: Over $1 Billion
- Employees: 10
Consolidated Communications Holdings
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Mattoon
- Revenue: Over $1 Billion
- Employees: 3,200
Cox Earl
- Industry: Software And Internet/Software And Internet
- Location: United States, Illinois, Stockton
- Revenue: Over $1 Billion
- Employees: 50,000